A system for controlling an electricity supply to a load comprises at least one battery for storing energy. The system also comprises a controller for determining when to switch between a first mode wherein electricity is supplied to the load from a mains electricity circuit; and a discharging mode wherein electricity is supplied from the battery to the load via the mains electricity circuit. The determining is based on information associated with the electricity supply.
H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
H02J 9/06 - Circuits pour alimentation de puissance de secours ou de réserve, p. ex. pour éclairage de secours dans lesquels le système de distribution est déconnecté de la source normale et connecté à une source de réserve avec commutation automatique
H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p. ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseauCircuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p. ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau
2.
System and method for controlling an electricity supply
A system for controlling an electricity supply to a load comprises at least one battery for storing energy. The system also comprises a controller for determining when to switch between a first mode wherein electricity is supplied to the load from a mains electricity circuit; and a discharging mode wherein electricity is supplied from the battery to the load via the mains electricity circuit. The determining is based on information associated with the electricity supply.
H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p. ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseauCircuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p. ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau
3.
VARIABLE TEMPERATURE REACTOR, HEATER AND CONTROL CIRCUIT FOR THE SAME
An apparatus is provided for nebulising a liquid from a liquid supply through a membrane comprising first and second surfaces and a plurality of apertures extending through the membrane. The apparatus comprises an area for receiving a liquid supply, arranged to deliver a liquid to the first surface of the membrane, a vibrator member, arranged to vibrate the membrane to eject liquid droplets from the front surface of the membrane on vibration; and a mechanical coupling means, arranged to provide a removable mechanical clamping force for clamping the membrane to the vibrator member. Various means for implementing the mechanical coupling are provided, and liquid containers and membranes for use in the device are proposed.
B05B 17/00 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe
B05B 7/24 - Appareillages de pulvérisation pour débiter des liquides ou d'autres matériaux fluides provenant de plusieurs sources, p. ex. un liquide et de l'air, une poudre et un gaz avec des moyens, p. ex. un récipient, pour alimenter en liquide ou autre matériau fluide un dispositif de décharge
B05B 17/06 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe opérant suivant des procédés particuliers utilisant des vibrations ultrasonores
B05B 1/14 - Buses, têtes de pulvérisation ou autres dispositifs de sortie, avec ou sans dispositifs auxiliaires tels que valves, moyens de chauffage avec des orifices de sortie multiplesBuses, têtes de pulvérisation ou autres dispositifs de sortie, avec ou sans dispositifs auxiliaires tels que valves, moyens de chauffage avec des filtres placés dans ou à l'extérieur de l'orifice de sortie
A61M 11/00 - Pulvérisateurs ou vaporisateurs spécialement destinés à des usages médicaux
A perforate element for use in a print head for non-contact liquid printing comprises: at least one ejection element including an outlet, configured to eject a bulk flow of printing liquid out of the print head; and a liquid residence element, arranged to provide a layer of liquid over the outlet which extends laterally of the outlet and through which the bulk flow is ejected.
A mixer system for use with a non-contact liquid printer comprises: a printing liquid reservoir and an expansion volume; and an aspirator element, configured to reduce the pressure in the expansion volume, thereby to displace printing liquid from the reservoir to the expansion volume, and restore the pressure in the expansion volume, thereby to return the printing liquid to the reservoir so as to mix the printing liquid therein.
B41J 2/19 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par la manipulation de l'encre pour éliminer les bulles d'air
A method of inspecting a material comprising: producing at least one eddy current excitation in a material under test; sensing said at least one eddy current excitation in the material under test; wherein the method comprises using a low cross-correlation coded spread spectrum to produce said at least one eddy current excitation, and using a correlation technique to make a determination of amplitude and phase of the sensed eddy current excitation; wherein the method further comprises using the determination to make an assessment of the material under test.
G01N 27/90 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant des variables magnétiques pour rechercher la présence des criques en utilisant les courants de Foucault
G01N 27/02 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant l'impédance
8.
Optical system for a display with an off axis projector
An optical projection system provides part of a display system that presents a displayed virtual image at a predetermined distance in front of a viewing position. Said display system comprises a projection system and a primary reflecting optic that deflects an off-axis incoming optical signal from the projection system toward the viewing position. Said projection system is arranged to provide an adapted output image signal that compensates for optical aberration effects introduced by the reflecting optic to ensure provision of a reduced aberration display image to the viewing position, and where the reflecting optic comprises a grating structure.
G02B 26/08 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables pour commander la direction de la lumière
G02B 27/00 - Systèmes ou appareils optiques non prévus dans aucun des groupes ,
An acoustic sensor comprises a side wall closed at each end by an end wall to form a cavity which, in use, contains a fluid. At least one transmitter and at least one receiver are operatively associated with one of the end walls. A maximum half width, a, of the cavity and a height, h, of the cavity satisfies the following inequality: a/h is greater than 1.2. In use, the transmitter causes oscillatory motion of the region of the end wall operatively associated with the transmitter, in a direction substantially perpendicular to the plane of the end walls such that the perpendicular oscillations of the end walls drive substantially in-plane oscillations of the fluid pressure in the cavity. The substantially in-plane oscillations in the pressure of the fluid drive substantially perpendicular oscillatory motion of the region of the end wall operatively associated with the receiver, resulting in an electrical signal from the receiver.
G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet Détails
G01N 9/22 - Recherche du poids spécifique ou de la densité des matériauxAnalyse des matériaux en déterminant le poids spécifique ou la densité en observant des corps entièrement ou partiellement immergés dans des matériaux fluides en équilibrant le poids des corps avec circulation continue de fluide
A mixer system for use with a non-contact liquid printer comprises: a printing liquid reservoir (103) and an expansion volume (105); and an aspirator element (111; 311; 411), configured to reduce the pressure in the expansion volume (105), thereby to displace printing liquid (L) from the reservoir (103) to the expansion volume (105), and restore the pressure in the expansion volume (105), thereby to return the printing liquid (L) to the reservoir (103) so as to mix the printing liquid (L) therein.
B41J 2/19 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par la manipulation de l'encre pour éliminer les bulles d'air
A treatment device includes a unit having an ultrasound imaging element and an ablation electrode, mechanism for receiving signals from the imaging element, the signals representing plural frames of ultrasound data; and mechanism for processing the signals to provide, in use, at least one of ultrasound data and data indicating mechanical strains within tissue being monitored by the sensor element, the strains being generated by movement of the tissue or the body being treated, the movement being generated naturally by the tissue or by the device operator's motion, or both.
A61B 8/12 - Diagnostic utilisant des ondes ultrasonores, sonores ou infrasonores dans des cavités ou des conduits du corps, p. ex. en utilisant des cathéters
A61B 8/00 - Diagnostic utilisant des ondes ultrasonores, sonores ou infrasonores
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
An apparatus for inductive temperature sensing comprises a coil configuration, a target, and an impedance measurement circuit. The target has a non-zero conductivity and susceptibility and the impedance measurement circuit measures the apparent inductance of the coil configuration at a measurement frequency close to the crossover frequency to provide an indication of temperature of the target.
G01K 7/38 - Mesure de la température basée sur l'utilisation d'éléments électriques ou magnétiques directement sensibles à la chaleur utilisant des éléments magnétiques, p. ex. des aimants, des bobines les variations de température agissant sur la perméabilité magnétique
A nozzle plate (201) for use in a liquid droplet production apparatus and such apparatus, the nozzle plate comprising a flexible substrate having a linear array of nozzles that extend through said plate, said nozzles being arranged in at least one line, forming thereby a nozzle- bearing region, wherein the substrate is curved so as to impart an increased longitudinal stiffness to it. The apparatus comprises a piezo actuator (202, 203), which may have sllots (211) separating fingers acting on the nozzle plate (201). The nozzle plate may be seaprable form the actuator.
B05B 17/06 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe opérant suivant des procédés particuliers utilisant des vibrations ultrasonores
B06B 1/06 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par effet piézo-électrique ou par électrostriction
A data logging device comprises a fluid reservoir (7) containing a fluid. A porous media (3) is provided through which the fluid can pass, and a valve (2) connects the reservoir (7) and the porous media (3) and controls flow there between. An actuator (6) is configured to actuate the valve (2) when the device crosses a predetermined applied parameter threshold so that the fluid can flow from the reservoir (7) along the porous media (3); such that the article is arranged to provide, in use, an indication of the progress of the fluid through the porous media (3) to indicate the total time that was spent by the device past the predetermined parameter threshold.
G01K 3/04 - Thermomètres donnant une indication autre que la valeur instantanée de la température fournissant des valeurs moyennesThermomètres donnant une indication autre que la valeur instantanée de la température fournissant des valeurs intégrées par rapport au temps
G01K 5/62 - Mesure de la température basée sur la dilatation ou la contraction d'un matériau le matériau étant un solide maintenu de façon que la dilatation ou la contraction provoque une déformation du solide le corps solide étant formé de bandes ou de plaques composées, p. ex. bilames
G01D 1/04 - Dispositions pour la mesure donnant des résultats autres que la valeur instantanée d'une variable, d'application générale donnant des valeurs intégrées
A method of inspecting a material comprising: producing at least one eddy current excitation in a material under test; sensing said at least one eddy current excitation in the material under test; wherein the method comprises using a low cross-correlation coded spread spectrum to produce said at least one eddy current excitation, and using a correlation technique to make a determination of amplitude and phase of the sensed eddy current excitation; wherein the method further comprises using the determination to make an assessment of the material under test.
G01N 27/90 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant des variables magnétiques pour rechercher la présence des criques en utilisant les courants de Foucault
17.
SYSTEM FOR THE MONITORING OF A PREVIOUSLY TRAVELLED PATHWAY
A system for monitoring a previously travelled pathway. The system comprises a user device comprising means for interacting with a user and node devices arranged to be deployed on a pathway as a user travels. The nodes are arranged to communicate with at least one other node device or the user device or a device external to the system to reflect a change in a predetermined factor in the region of the deployed node device on the pathway.
G08B 7/06 - Systèmes de signalisation selon plus d'un des groupes Systèmes d'appel de personnes selon plus d'un des groupes utilisant une transmission électrique
G08B 25/00 - Systèmes d'alarme dans lesquels l'emplacement du lieu où existe la condition déclenchant l'alarme est signalé à une station centrale, p. ex. systèmes télégraphiques d'incendie ou de police
18.
AEROSOL APPARATUS WITH IMPROVED SEPARABLE MEMBRANE
A liquid droplet production apparatus comprising a separable perforate membrane (44), a means for supplying liquid to one side of the membrane, an actuator (41) for vibrating a membrane, so that the vibration causes liquid droplets to be ejected from the other side of the membrane, in which a magnetic force is used to connect the actuator to the membrane so that the vibration can be transmitted, wherein the magnetic force is generated by one or more arrays of magnets (43), eventually on a substrate (42), each array containing either a plurality of magnets or at least one magnet having a multiple pole configuration.
B05B 17/06 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe opérant suivant des procédés particuliers utilisant des vibrations ultrasonores
H01F 7/04 - Moyens pour libérer la force attractive
A nozzle assembly, configured to receive fluid at pressures of greater than 1 bar. The nozzle assembly comprises a first perforate element (1) comprising one or more orifices (2), each orifice having an inlet and an outlet and a diameter of no more than 100 μm, and at least one second perforate element (4) further comprising a plurality of orifices of a smaller size than the one or more orifices of the first perforate element (1) and having a larger number of orifices than the first perforate element (1). The second perforate element (4) is configured to act as a filter and the second perforate element (4) is attached to the first perforate element (1). A perpendicular distance between the first and second perforate elements (4) is less than the diameter of the largest orifice of the first perforate element (1).
A system comprises a head-worn optical device for monitoring one or more physiological parameters from a region of interest on, in or near the eye of a user. The device comprises a measurement sub-system positioned substantially outside the field of view of a user, and an optical beam combining element, located in the field of view, where said element is transparent to a portion of the light incident on the element, while a second portion of the light is deflected such that the measurement sub-system is able to optically access the eye via the optical beam combining element.
A61B 3/113 - Appareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux du type à mesure objective, c.-à-d. instruments pour l'examen des yeux indépendamment des perceptions ou des réactions du patient pour déterminer ou enregistrer le mouvement de l'œil
G02B 27/10 - Systèmes divisant ou combinant des faisceaux
G02B 27/00 - Systèmes ou appareils optiques non prévus dans aucun des groupes ,
According to a first aspect of the disclosure, a spray device is provided for generating an aerosol. The spray device comprises a reservoir for containing a store of a liquid; a delivery chamber for containing a dose of the liquid received from the reservoir prior to ejection; a perforate element comprising one or more nozzles; a drive mechanism configured to drive liquid from the delivery chamber through the one or more nozzles; and a fluid metering system. The fluid metering system comprises an actuated valve that is actuatable between a closed position and an open position. The opening and closing of the actuated valve can be sequenced to control the flow of fluid from the reservoir to the delivery chamber.
A61M 11/00 - Pulvérisateurs ou vaporisateurs spécialement destinés à des usages médicaux
A61M 11/02 - Pulvérisateurs ou vaporisateurs spécialement destinés à des usages médicaux agissant par pression d'air sur les liquides à pulvériser ou vaporiser
B05B 11/00 - Appareillages monoblocs tenus à la main dans lesquels l'écoulement du contenu est produit par la force musculaire de l'opérateur au moment de l'utilisation
There is disclosed a device for delivering a fluid spray to a mouth of a user, either directly, or via a flow conductor such as a tube or pipe. The spray device uses a vibrating perforate membrane to create the spray and the vibration of the membrane is controlled in response to input from a flow rate sensor which detects a flow rate through the device or through the flow conductor. There is further disclosed a corresponding method of controlling a spray head in a spray delivery device.
B05B 17/06 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe opérant suivant des procédés particuliers utilisant des vibrations ultrasonores
23.
OPTICAL SYSTEM FOR A DISPLAY WITH AN OFF AXIS PROJECTOR
An optical projection system provides part of a display system that presents a displayed virtual image at a predetermined distance in front of a viewing position. Said display system comprises a projection system and a primary reflecting optic that deflects an off-axis incoming optical signal from the projection system toward the viewing position. Said projection system is arranged to provide an adapted output image signal that compensates for optical aberration effects introduced by the reflecting optic to ensure provision of a reduced aberration display image to the viewing position, and where the reflecting optic comprises a grating structure.
A gas pipe security system comprises a bung device arranged so as to be placed inside the bore of a pipe in use and constructed. When gas passes through the pipe and bung the bung generates a sensing signal, and a sensor device detects the sensing signal generated by the bung and provides an alarm signal based thereon..
G01P 13/00 - Indication ou enregistrement de l'existence ou de l'absence d'un mouvementIndication ou enregistrement de la direction d'un mouvement
G01F 1/05 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets mécaniques
A gas pipe blocking system comprises an electromechanical device (4) which in turn comprises at least one protruding member (10) arranged so as to lock the device (4) in place inside the bore of a pipe when the member (10) is in a first position. The member (10) is arranged such that the members (10) are moved to a second position in which the device (4) ceases to be locked in position when a power source is applied to move the members (10).
F16L 55/128 - Moyens pour arrêter l'écoulement dans les tuyaux ou manches en introduisant dans le tuyau un élément expansible in situ introduits axialement dans le tuyau ou la manche
F16L 55/136 - Moyens pour arrêter l'écoulement dans les tuyaux ou manches en introduisant dans le tuyau un élément expansible in situ introduits axialement dans le tuyau ou la manche l'obturateur étant un bouchon fixé par expansion ou par déformation radiales d'une bague fendue, de crochets ou analogues
26.
METHOD FOR PRODUCING AN ELECTRICAL IMPEDANCE TOMOGRAPHIC IMAGE OF AN ACOUSTIC FIELD AND A SYSTEM FOR PERFORMING SAID METHOD
There is provided A method for producing an electrical impedance tomographic image of an acoustic field within a fluid, comprising the steps of: a) positioning a plurality of electrodes within a fluid; b) applying an electrical signal to each electrode within a first subset of electrodes, wherein the electrical signal applied to each electrode has a different carrier frequency and/or phase; c) measuring the electrical potential at each electrode within a second subset of electrodes; and d) processing the measured data to provide an acoustic map of the acoustic field at the required acoustic frequencies. There is also provided a system for producing an electrical impedance tomographic image of an acoustic field within a fluid using the method of any preceding claim, comprising a plurality of electrodes, a signal generator adapted to perform step (b), a device adapted to perform step (c), and a processor adapted to perform step (d).
G01H 11/06 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores par détection des changements dans les propriétés électriques ou magnétiques par des moyens électriques
G01N 27/02 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant l'impédance
27.
Fluid management for vibrating perforate membrane spray systems
B05B 17/00 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe
B05B 11/00 - Appareillages monoblocs tenus à la main dans lesquels l'écoulement du contenu est produit par la force musculaire de l'opérateur au moment de l'utilisation
A61L 9/00 - Désinfection, stérilisation ou désodorisation de l'air
B05B 17/06 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe opérant suivant des procédés particuliers utilisant des vibrations ultrasonores
A61M 35/00 - Dispositifs pour appliquer des agents, p. ex. des remèdes, sur le corps humain
A61M 11/00 - Pulvérisateurs ou vaporisateurs spécialement destinés à des usages médicaux
An optical system comprises a transparent display arranged to be placed in the near field view of a user. Image generation means generates an image on the transparent display, the formed image having a blank area formed therein to allow a viewer to view an image of higher resolution than the first.
A display system is arranged to be placed in front of the eye or positioned in front of an image recording device that presents a view comprising the normal visual field overlaid with an image of a transparent display panel. The system comprises a transparent display panel positioned in front of the eye, and a dual focus lens positioned between the eye and the transparent display panel the lens arranged to allow the eye to focus on both the display panel and a view through the transparent panel.
An acoustic sensor comprises a side wall closed at each end by an end wall to form a cavity which, in use, contains a fluid. At least one transmitter and at least one receiver are operatively associated with one of the end walls. A maximum half width, a, of the cavity and a height, h, of the cavity satisfies the following inequality: a/h is greater than 1.2. In use, the transmitter causes oscillatory motion of the region of the end wall operatively associated with the transmitter, in a direction substantially perpendicular to the plane of the end walls such that the perpendicular oscillations of the end walls drive substantially in-plane oscillations of the fluid pressure in the cavity. The substantially in-plane oscillations in the pressure of the fluid drive substantially perpendicular oscillatory motion of the region of the end wall operatively associated with the receiver, resulting in an electrical signal from the receiver.
G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet Détails
An apparatus is provided for nebulizing a liquid from a liquid supply through a membrane comprising first and second surfaces and a plurality of apertures extending through the membrane. The apparatus includes an area for receiving a liquid supply, arranged to deliver a liquid to the first surface of the membrane, a vibrator member, arranged to vibrate the membrane to eject liquid droplets from the front surface of the membrane on vibration; and a mechanical coupling mechanism, arranged to provide a removable mechanical clamping force for clamping the membrane to the vibrator member. Various mechanisms for implementing the mechanical coupling are provided, and liquid containers and membranes for use in the device are proposed.
B05B 17/06 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe opérant suivant des procédés particuliers utilisant des vibrations ultrasonores
B05B 17/00 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe
B05B 7/24 - Appareillages de pulvérisation pour débiter des liquides ou d'autres matériaux fluides provenant de plusieurs sources, p. ex. un liquide et de l'air, une poudre et un gaz avec des moyens, p. ex. un récipient, pour alimenter en liquide ou autre matériau fluide un dispositif de décharge
B05B 1/14 - Buses, têtes de pulvérisation ou autres dispositifs de sortie, avec ou sans dispositifs auxiliaires tels que valves, moyens de chauffage avec des orifices de sortie multiplesBuses, têtes de pulvérisation ou autres dispositifs de sortie, avec ou sans dispositifs auxiliaires tels que valves, moyens de chauffage avec des filtres placés dans ou à l'extérieur de l'orifice de sortie
A61M 11/00 - Pulvérisateurs ou vaporisateurs spécialement destinés à des usages médicaux
A spray device for generating a slow moving aerosol, whereby the aerosol is generated from at least two impinging jets and the jets are formed by forcing liquid through a single moulded plastic nozzle assembly comprising: a. one or more thin walled sections (typically<200 µm) (18) where the thin wall sections (18) are supported by one or more thick walled sections (typically>200 µm) (17, 19). b. at least two opposing holes (13) with hydraulic diameters of 5 pm to 100µm (typically 30 µm) and axes at an angle of between 55 and 125 degrees (preferably 90 degrees) to an external surface of the thin walled section (18), such that the projected areas of the holes (13) at least partially intersect at the outlet side of the nozzle.
B05B 1/26 - Buses, têtes de pulvérisation ou autres dispositifs de sortie, avec ou sans dispositifs auxiliaires tels que valves, moyens de chauffage avec des moyens pour briser ou dévier mécaniquement le jet à sa sortie, p. ex. des déflecteurs fixesDispersion du liquide ou d'autre matériau fluide sortant à l'aide de jets d'impact
A perforate element (101) for use in a print head for non-contact liquid printing comprises: at least one ejection element (103) including an outlet (103a), configured to eject a bulk flow (F) of printing liquid (L) out of the print head; and a liquid residence element (107), arranged to provide a layer of liquid over the outlet (103a) which extends laterally of the outlet (103a) and through which the bulk flow (F) is ejected.
A mixer system for use with a non-contact liquid printer comprises: a printing liquid reservoir (103) and an expansion volume (105); and an aspirator element (111; 311; 411), configured to reduce the pressure in the expansion volume (105), thereby to displace printing liquid (L) from the reservoir (103) to the expansion volume (105), and restore the pressure in the expansion volume (105), thereby to return the printing liquid (L) to the reservoir (103) so as to mix the printing liquid (L) therein.
An optical device comprises an optical diffuser structure embedded between media of substantially the same optical refractive index. The structure comprises a partially reflective optical coating at the interface between the two media. The partially reflective optical coating comprises a relief profile such that, in use, the optical diffuser structure diffuses light in reflection from the partially reflective optical coating and delivers substantially no optical deflection in transmission.
A treatment device comprises a unit comprising an ultrasound imaging element and an ablation electrode means receives signals from the imaging element, the signals representing plural frames of ultrasound data; and means process the signal to provide, in use, at least one of ultrasound data and data indicating mechanical strains within tissue being monitored by the sensor element, said strains being generated by movement of the tissue or the body being treated, the movement being generated naturally by the tissue or by the device operator's motion, or both.
A61B 19/00 - Instruments, outillage ou accessoires pour la chirurgie ou le diagnostic non couverts par l'un des groupes A61B 1/00-A61B 18/00, p.ex. pour stéréotaxie, opération aseptique, traitement de la luxation, protecteurs des bords des blessures(masques de protection du visage A41D 13/11; blouses de chirurgien ou vêtements pour malades A41D 13/12; dispositifs pour retirer, traiter ou transporter les liquides du corps A61M 1/00)
A61B 8/12 - Diagnostic utilisant des ondes ultrasonores, sonores ou infrasonores dans des cavités ou des conduits du corps, p. ex. en utilisant des cathéters
A61B 8/00 - Diagnostic utilisant des ondes ultrasonores, sonores ou infrasonores
A61B 18/00 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci
37.
AEROSOLISATION ENGINE FOR LIQUID DRUG DELIVERY BACKGROUND
A spray device for generating an aerosol of a liquid such as a medicament. The device includes a perforate element comprising one or more nozzles, each nozzle having an inlet and an outlet. A drive mechanism causes, in use, liquid to be driven through the one or more nozzles, thereby forming a liquid spray having one or more streams of liquid. At least one impaction surface is provided onto which, in use, the liquid impacts, the impaction surface being located downstream of the nozzle outlet(s).
A cartridge (10) comprises a body comprising a base (20), one or more walls (30), and a lid (40). The one or more walls are connected at a first end to the base and at a second end to the lid, so the base (20), the one or more walls (30) and the lid (40) together define an enclosed space. An infusion material is located in the enclosed space, an inlet (22) is located in the body for receiving a liquid into the enclosed space and an outlet (26) is located in the body for allowing the passage of the liquid from the enclosed space. The walls (30) are expandable such that when liquid is received into the enclosed space the area of the enclosed space increases, the cartridge (10) thereby transitioning from a first state into a second state.
A fluid pump comprising: a pump body having upper and lower parts, each comprising a substantially cylindrical side wall closed at one end by a substantially circular end wall and partially closed at the opposite end by an actuator disposed in a plane substantially parallel to and between the end walls, thereby forming a single cavity having upper and lower portions which encloses the actuator and is bounded by the end walls and side walls of the pump body and the surfaces of the actuator; a substantially open actuator support structure connecting the actuator to the pump body and enabling free flow of fluid between the upper and lower cavity portions; at least two apertures through the pump body walls, at least one of which is a valved aperture; wherein all apertures located substantially at the centres of the end walls are valved apertures; wherein, in use, the actuator oscillates in a direction substantially perpendicular to the plane of the end walls causing an acoustic wrapped standing wave to exist in the cavity and thereby causing fluid flow through said apertures.
A droplet generation device comprising a reservoir split into at least two regions by a substantially liquid impermeable barrier, a perforate membrane connecting one of said regions, containing, in use, the liquid to be dispensed, to the atmosphere, such that vibration of the membrane causes the liquid to be ejected through the perforate membrane into the atmosphere, and a pressure control system consisting of one or more valves in which at least one valve vents gas into the reservoir in response to a pressure difference, ΔΡin, across it that is less than zero, and at least one valve is connected to a non-liquid-containing region of the reservoir and vents gas out of the reservoir in response to a pressure difference, ΔΡout, across it that is greater than ΔΡίn, where ΔΡίn and ΔΡout are the absolute pressure of the gas in the reservoir minus the absolute atmospheric pressure outside of the reservoir.
B05B 17/00 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe
B05B 17/06 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe opérant suivant des procédés particuliers utilisant des vibrations ultrasonores
41.
A PRINTHEAD DRIVER BOARD ARRANGEMENT FOR 2 OR MORE PRINTHEADS
An arrangement of a 'master' electronics printed circuit board assembly for driving a printhead and a 'slave' electronics printed circuit board assembly for driving a second printhead, defined in that the 'master' electronics printed circuit board assembly comprises: a. means for receiving image data and/or timing information relating to the control of a plurality of printheads, b. means for using all or a part of the image data and/or timing information to drive a first printhead at the same rate that it receives print data, and c. means for supplying all or part of the image data and/or timing information as a data stream to a separate 'slave' electronics printed circuit board assembly for driving a second printhead and the 'slave' electronics printed circuit board assembly comprises: a. means for receiving image data and/or timing information relating to the control of just one second printhead, b. means for using the image data and/or timing information to drive a second printhead at the same rate that it receives print data, but c. no means for supplying any of the print data to a separate electronics board for driving any further printheads.
B41J 2/045 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant à la demande des gouttelettes ou des particules séparées les unes des autres par pression, p. ex. à l'aide de transducteurs électromécaniques
An apparatus is provided for nebulising a liquid from a liquid supply through a membrane comprising first and second surfaces and a plurality of apertures extending through the membrane. The apparatus comprises an area for receiving a liquid supply, arranged to deliver a liquid to the first surface of the membrane, a vibrator member, arranged to vibrate the membrane to eject liquid droplets from the front surface of the membrane on vibration; and a mechanical coupling means, arranged to provide a removable mechanical clamping force for clamping the membrane to the vibrator member. Various means for implementing the mechanical coupling are provided, and liquid containers and membranes for use in the device are proposed.
B05B 17/06 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe opérant suivant des procédés particuliers utilisant des vibrations ultrasonores
B05B 17/00 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe
An acoustic sensor includes a side wall, closed at each end by an end wall, to form a substantially cylindrical cavity, a transmitter and a receiver operatively associated with first and second respective end walls. Properties of the relative dimensions of the cavity are configured to create a desired oscillatory motion of the end walls, and oscillations of a fluid pressure in the cavity, to generate an electrical signal via the receiver to be output from the sensor. An array of acoustic sensors can be connected to allow calibration of one of the array of sensors.
G01N 29/036 - Analyse de fluides en mesurant la fréquence ou la résonance des ondes acoustiques
G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet Détails
G01N 33/00 - Recherche ou analyse des matériaux par des méthodes spécifiques non couvertes par les groupes
The present Invention relates to a method for the deformation and/or fragmentation of a cell, spore or virus, the method comprising: (I) bringing a liquid sample containing the cell, spore or virus into contact with a first surface of a vibratable plate having at least one aperture, and causing the plate to vibrate; and (ii) passing the sample of the cell spore or virus through the at least one aperture in the vibrating plate so as to cause deformation and/or fragmentation: of the cell, spore or virus. It also concerns a device for carrying out the method.
C12M 1/42 - Appareils pour le traitement de micro-organismes ou d'enzymes au moyen d'énergie électrique ou ondulatoire, p. ex. magnétisme, ondes sonores
C12M 1/00 - Appareillage pour l'enzymologie ou la microbiologie
A wireless power transmission system is designed to transmit power through a permeable conductive barrier layer. The system comprises a power transmitting circuit including a first inductive coil. A power receiving circuit includes a second inductive coil located on the opposite side of the barrier layer to the first inductive coil. A biasing magnet or electromagnet is provided and characterised by its ability to substantially saturate the magnetisation of the barrier layer in a region adjacent to the first and second inductive coils.
H02J 50/10 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique utilisant un couplage inductif
H02J 50/70 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique mettant en œuvre la réduction des champs de fuite électriques, magnétiques ou électromagnétiques
H02J 50/90 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique mettant en œuvre la détection ou l'optimisation de la position, p. ex. de l'alignement
H02J 5/00 - Circuits pour le transfert d'énergie électrique entre réseaux à courant alternatif et réseaux à courant continu
An optical device comprises an optical diffuser structure embedded between media of substantially the same optical refractive index. The structure comprises a partially reflective optical coating at the interface between the two media. The partially reflective optical coating comprises a relief profile such that, in use, the optical diffuser structure diffuses light in reflection from the partially reflective optical coating and delivers substantially no optical deflection in transmission.
A unit dose container for holding a single dose of a given liquid, the container comprising: a chamber (8) in which, in use, the given liquid is stored, the chamber having a wall through which, in use, the liquid is to be supplied; a release mechanism (7), at least part of which is internal to, or forms part of the wall of the chamber, the release mechanism being movable relative to the chamber between first and second positions; and means for allowing the release mechanism (7) to move from the first to the second positions, thereby opening a passage through the wall so that the liquid can exit the chamber (8), the means including at least one flexible wall portion.
A61J 3/07 - Dispositifs ou procédés spécialement conçus pour donner à des produits pharmaceutiques une forme physique déterminée ou une forme propre à leur administration la forme de capsules ou de petits conteneurs similaires à absorber par voie buccale
B05B 17/00 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe
A61M 11/06 - Pulvérisateurs ou vaporisateurs spécialement destinés à des usages médicaux du type injecteur
B65D 25/08 - Cloisonnements avec dispositifs pour les éliminer ou les détruire, p. ex. pour faciliter le mélange des contenus
A61M 11/00 - Pulvérisateurs ou vaporisateurs spécialement destinés à des usages médicaux
A fluid pump comprising a flow channel containing an fluid inlet and a fluid outlet and bounded by two side walls,a substantially planar flap positioned inside the flow channel, and an actuator capable of transmitting an oscillating force or torque to the flap,where the side walls extend from the inlet to the outlet and are substantially planar and parallel to the flap and extend beyond the downstream end of the flap towards the outlet by a distance such that ld ≥ lf/2, where lf is the length of the flap, where the side wall separation, h, length, lw, and width, ww, satisfy the relationships: lw > h and ww > h, whereby in use, the actuator drives oscillatory motion of the flap in a direction substantially perpendicular to the side walls with motion of the flap having larger amplitude near the outlet than near the inlet.
A liquid droplet production apparatus includes a perforate membrane, with liquid being supplied to one side of the membrane. An actuator for vibrating the membrane is provided. The vibration causes liquid droplets to be ejected from the other side of the membrane. Magnetic force is used to connect the actuator to the membrane so that the vibration can be transmitted.
B05B 17/00 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe
A61M 11/00 - Pulvérisateurs ou vaporisateurs spécialement destinés à des usages médicaux
A liquid management system for supplying or receiving liquid at a controlled pressure, comprising: a closed reservoir having an inlet for receiving liquid from a first remote location and an outlet for supplying liquid to a second remote location; and a pumped outlet disposed in the reservoir and arranged to remove liquid and gas contained within the reservoir, the pumped outlet being disposed such that the level of liquid in the reservoir can be maintained at a constant height.
A system for controlling an electricity supply to a load comprises at least one battery for storing energy. The system also comprises a controller for determining when to switch between a first mode wherein electricity is supplied to the load from a mains electricity circuit; and a discharging mode wherein electricity is supplied from the battery to the load via the mains electricity circuit. The determining is based on information associated with the electricity supply.
H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion
H02J 9/06 - Circuits pour alimentation de puissance de secours ou de réserve, p. ex. pour éclairage de secours dans lesquels le système de distribution est déconnecté de la source normale et connecté à une source de réserve avec commutation automatique
H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p. ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseauCircuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p. ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau
A fluid pump comprising one or two cavities which, in use, contains a fluid to be pumped, the chamber or chambers having a substantially cylindrical shape bounded by first and second end walls and a side wall; an actuator which, in use, causes oscillatory motion of the first end wall(s) in a direction substantially perpendicular to the plane of the first end wall(s); and whereby, in use, these axial oscillations of the end walls drive radial oscillations of the fluid pressure in the main cavity; and wherein an isolator forms at least a portion of the first end wall between the actuator and the side wall and includes conductive tracks, wherein electrical connection is made to the actuator via the conductive tracks included within the isolator.
F04B 19/00 - "Machines" ou pompes ayant des caractéristiques particulières non prévues dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
F04B 43/04 - Pompes ayant un entraînement électrique
A method of producing droplets from a nozzle provided on a material layer, the method comprising the steps of supplying liquid to an inner end of an array of nozzles, the nozzles being split into M groups of one or more nozzles, generating one or more firing signals, each firing signal causing sufficient movement of a group of nozzles relative to the liquid such that liquid is projected as droplets from the outer face of the respective nozzles, generating one or more sub-firing signals associated with each group of nozzles, the one or more sub-firing signals causing movement of the group of nozzles which is insufficient to project liquid from the nozzles, the sub-firing signals of adjacent groups having a non-zero phase relationship, wherein the sub-firing signal(s) of at least one group of nozzles is independent of the firing signal(s) associated with that group.
B41J 2/045 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant à la demande des gouttelettes ou des particules séparées les unes des autres par pression, p. ex. à l'aide de transducteurs électromécaniques
B05B 12/08 - Aménagements de commande de la distributionAménagements de réglage de l’aire de pulvérisation sensibles à l'état du liquide ou d'un autre matériau fluide expulsé, du milieu ambiant ou de la cible
A device is disclosed for dispensing injecting fluids. The device comprises an inlet arranged to accept a higher viscosity fluid and a further inlet arranged to accept a lower viscosity fluid. A flow arranging part arranges the liquids from the inlets into a core-annular configuration which the higher viscosity fluid is surrounded by lower viscosity fluid. This flow is then passed out through an outlet.
A61M 5/148 - Perfusion sous pression, p. ex. utilisant des pompes utilisant des réservoirs sous pression, p. ex. au moyen de pistons flexibles
A61M 5/168 - Moyens pour commander l'écoulement des agents vers le corps ou pour doser les agents à introduire dans le corps, p. ex. compteurs de goutte-à-goutte
55.
WIRELESS ACOUSTIC COMMUNICATIONS METHOD AND APPARATUS
A method and apparatus for generating, propagating, encoding, decoding, modulating and detecting acoustic signals in a well borehole that comprises a signal generator (10) located at a first location for generating an acoustic source signal; a medium for the propagation the acoustic source signal to a second location and the propagation of the reflections and partial reflections of acoustic signals as it propagates through the medium; an apparatus to remove a detectable amount of energy from propagated acoustic signals; a controllable signal modulator (11) for attenuating the transmitted acoustic source signal; and a receiver (12) for receiving the modulated acoustic signals reflected, partially reflected or both by at least one reflector respectively located at one or more other locations.
E21B 47/14 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p. ex. pour la diagraphie pendant le forage utilisant des ondes acoustiques
E21B 47/18 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p. ex. pour la diagraphie pendant le forage utilisant des ondes acoustiques à travers le fluide du puits
G01V 11/00 - Prospection ou détection par des méthodes combinant des techniques spécifiées dans les groupes
E21B 47/16 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p. ex. pour la diagraphie pendant le forage utilisant des ondes acoustiques le long du train de tiges ou du tubage
An acoustic sensor includes a side wall, closed at each end by an end wall, to form a substantially cylindrical cavity, a transmitter and a receiver operatively associated with first and second respective end walls. Properties of the relative dimensions of the cavity are configured to create a desired oscillatory motion of the end walls, and oscillations of a fluid pressure in the cavity, to generate an electrical signal via the receiver to be output from the sensor. An array of acoustic sensors can be connected to allow calibration of one of the array of sensors.
G01N 29/036 - Analyse de fluides en mesurant la fréquence ou la résonance des ondes acoustiques
G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet Détails
57.
SYSTEM PROVIDING INDUCTIVE TRANSMISSION OF POWER AND DATA THROUGH A PERMEABLE CONDUCTIVE BARRIER LAYER.
A wireless power transmission system is designed to transmit power through a permeable conductive barrier layer. The system comprises a power transmitting circuit including a first inductive coil. A power receiving circuit includes a second inductive coil located on the opposite side of the barrier layer to the first inductive coil. A biasing magnet or electromagnet is provided and characterised by its ability to substantially saturate the magnetisation of the barrier layer in a region adjacent to the first and second inductive coils.
H02J 5/00 - Circuits pour le transfert d'énergie électrique entre réseaux à courant alternatif et réseaux à courant continu
H02J 7/02 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries pour la charge des batteries par réseaux à courant alternatif au moyen de convertisseurs
H02J 17/00 - Systèmes pour l'alimentation ou la distribution d'énergie par ondes électromagnétiques
H05K 9/00 - Blindage d'appareils ou de composants contre les champs électriques ou magnétiques
An optical device comprising an optical grating structure embedded between media of substantially the same optical refractive index, the structure having an optical coating at the interface between the two media, wherein the structure comprises grating facets inclined relative to the interface plane such that, in use, anomalous optical effects due to coating are substantially reduced.
An optical device (20) that comprises at least two refractive optical elements (1, 2) arranged along an optical axis (OA) of the device, each refractive optical element having a surface profile. The device has an optical aperture common to the at least two refractive optical elements and wherein at least one refractive optical element is arranged to rotate relative to another refractive optical element around a rotation axis which intersects the aperture of the device. The device has a plurality of configurations, each configuration having a predetermined optical property, such as the focal length, over at least a first region of the aperture; the configurations being selected by rotating the at least one refractive optical element arranged to rotate. The total area of the first regions divided by the total area of the aperture is a function of the surface profiles of the at least two refractive optical elements.
G02B 15/00 - Objectifs optiques avec moyens de faire varier le grossissement
G02B 26/08 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables pour commander la direction de la lumière
A liquid droplet production apparatus comprising a perforate membrane (33,39), a means for supplying liquid to one side of the membrane, an actuator (31) for vibrating the membrane said vibration causing liquid droplets to be ejected from the other side of the membrane, in which magnetic force is used to connect the actuator to the membrane so that the vibration can be transmitted.
B05B 17/06 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe opérant suivant des procédés particuliers utilisant des vibrations ultrasonores
A unit dose container for holding a single dose of a given liquid, the container comprising: a chamber (8) in which, in use, the given liquid is stored, the chamber having a wall through which, in use, the liquid is to be supplied; a release mechanism (7), at least part of which is internal to, or forms part of the wall of, the chamber, the release mechanism being movable relative to the chamber between first and second positions; and means for allowing the release mechanism (7) to move from the first to the second positions, thereby opening a passage through the wall so that the liquid can exit the chamber (8), the means including at least one flexible wall portion.
A print head comprising a nozzle plate having a plurality of nozzles extending therethrough, a piezoelectric bending mode actuator associated with each nozzle and connected with the respective nozzle so as to provide a plurality of independently actuatable nozzles, and a mount for, in use, connecting the nozzle plate to a liquid printer, wherein, in use, each nozzle can be driven at its resonant frequency such that motion of the driven nozzle causes liquid to be ejected only from the driven nozzle.
A pump comprising a side wall closed at each end by an end wall forming a cavity for, in use, containing a fluid, one or more actuators each operatively associated with one or more of the end walls to cause an oscillatory motion of the associated end wall(s) whereby, in use, these axial oscillations of the end wall(s) drive substantially radial oscillations of the fluid pressure in the cavity, two or more apertures in the cavity, a valve disposed in at least one of the apertures, wherein the actuator(s) is arranged to be non-axisymmetric in use such that, in use, a pressure oscillation with at least one nodal diameter is generated within the cavity.
F04B 19/00 - "Machines" ou pompes ayant des caractéristiques particulières non prévues dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
F04B 43/04 - Pompes ayant un entraînement électrique
A system for controlling an electricity supply to a load comprises at least one battery for storing energy. The system also comprises a controller for determining when to switch between a first mode wherein electricity is supplied to the load from a mains electricity circuit; and a discharging mode wherein electricity is supplied from the battery to the load via the mains electricity circuit. The determining is based on information associated with the electricity supply.
H02J 9/06 - Circuits pour alimentation de puissance de secours ou de réserve, p. ex. pour éclairage de secours dans lesquels le système de distribution est déconnecté de la source normale et connecté à une source de réserve avec commutation automatique
H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion
H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p. ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseauCircuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p. ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau
An electronic spray device comprising a spray generator and a spray controller for providing a drive signal to the spray generator, wherein the spray generator includes a perforate membrane which vibrates ultrasonically in response to the drive signal, said vibration causing liquid droplets to be ejected from one side of the perforate membrane, wherein the spray controller is adapted to modulate the drive signal sent to the spray generator, wherein such modulation of the drive signal is arranged to set the mean power level supplied to the spray generator to a target level.
B06B 1/06 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par effet piézo-électrique ou par électrostriction
B05B 17/06 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe opérant suivant des procédés particuliers utilisant des vibrations ultrasonores
A system for analyzing an interior energy system including: at least one detachable sensor arranged to monitor a portion of the interior energy system; and an apparatus including a processor configured to receive data of a first parameter of the interior energy system from the at least one detachable sensor and determine a second parameter of the interior energy which is inferred on the basis of the received data of the first parameter; and determine a characteristic of the interior energy system from the determined second parameter. The system may provide analysis of the interior energy system and recommend improvements.
A light modulation device comprising an optical element and at least one addressable mask disposed adjacent to the optical element. The optical element comprises at least two sub-elements, each of the at least two sub-elements having at least one optical characteristic wherein at least one optical characteristic of one sub-element is discrete from at least one optical characteristic of another sub-element. The mask comprises at least two regions corresponding to the at least two sub-elements, each of the at least two regions being individually addressable to enable its corresponding sub-element to be light transmitting.
An optical device comprising an optical grating structure embedded between media of substantially the same optical refractive index, the structure having an optical coating at the interface between the two media, wherein the structure comprises grating facets inclined relative to the interface plane such that, in use, anomalous optical effects due to coating are substantially reduced.
A method of producing droplets from a nozzle provided on a material layer, the method comprising the steps of supplying liquid to an inner end of an array of nozzles, the nozzles being split into M groups of one or more nozzles, generating one or more firing signals, each firing signal causing sufficient movement of a group of nozzles relative to the liquid such that liquid is projected as droplets from the outer face of the respective nozzles, generating one or more sub-firing signals associated with each group of nozzles, the one or more sub-firing signals causing movement of the group of nozzles which is insufficient to project liquid from the nozzles, the sub-firing signals of adjacent groups having a non-zero phase relationship, wherein the sub-firing signal(s) of at least one group of nozzles is independent of the firing signal(s) associated with that group.
B41J 2/045 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant à la demande des gouttelettes ou des particules séparées les unes des autres par pression, p. ex. à l'aide de transducteurs électromécaniques
The invention provides an apparatus for the culturing of biological cells, comprising a substantially tubular vessel, which is shaped and oriented so that its axis is gently sloping, and a means of injection of individual large bubbles. In operation, the vessel holds a liquid cell culture medium into which bubbles of gas are introduced. The shape of the vessel serves to stabilise and reduce the velocity of large rising bubbles of gas, compared to bubbles in a bulk fluid. The motion of the large rising bubbles causes mixing and gas transfer to the medium while reducing the high shear rates and bubble collapse that cause cell damage, and reducing production of foam in the vessel's headspace.
A valve comprises: a first plate (116) having apertures (120) extending through said first plate; a second plate (114) having apertures (118) extending through said second plate, the apertures (118) being substantially offset from the apertures (120) of said first plate; a spacer (112) disposed between said first plate and said second plate to form a cavity (115) therebetween; and, a flap (117) disposed and moveable between said first and second plates, said flap having apertures (122) substantially offset from the apertures (120) of said first plate and substantially aligned with the apertures (118) of said second plate. A pump (10) containing said valve is also disclosed. The pump has a sylindrical shape and defines a cavity (10) formed by a side wall (19) closed at both ends by end walls (12, 13), wherein an actuator (20) causes an oscillatory motion on one end wall to generate displacement oscillations. Methods for fabricating the valve and for mounting the valve in the pump.
A fluid spray dispenser (2) having a fluid reservoir (20) for holding a fluid to be dispensed, a spray head (23) for dispensing the fluid and a porous medium (24) through which the fluid passes from the reservoir (20) to the spray head (23). The porous medium (24) has a pathway (25) or pathways located substantially adjacent the spray head (23) for the removal of air ingested into the porous medium (24) during spraying.
B05B 17/06 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe opérant suivant des procédés particuliers utilisant des vibrations ultrasonores
B05B 1/08 - Buses, têtes de pulvérisation ou autres dispositifs de sortie, avec ou sans dispositifs auxiliaires tels que valves, moyens de chauffage agencés pour produire un jet, un pulvérisat ou tout autre écoulement de forme ou de nature particulière, p. ex. sous forme de gouttes individuelles de nature pulsatoire, p. ex. débitant un liquide en quantités successives séparées
B05B 1/14 - Buses, têtes de pulvérisation ou autres dispositifs de sortie, avec ou sans dispositifs auxiliaires tels que valves, moyens de chauffage avec des orifices de sortie multiplesBuses, têtes de pulvérisation ou autres dispositifs de sortie, avec ou sans dispositifs auxiliaires tels que valves, moyens de chauffage avec des filtres placés dans ou à l'extérieur de l'orifice de sortie
B05B 17/00 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe
A print head comprising a nozzle plate (4) having a plurality of nozzles (5) extending therethrough, a piezoelectric bending mode actuator (6) associated with each nozzle and connected with the respective nozzle so as to provide a plurality of independently actuatable nozzles, and a mount (2) for, in use, connecting the nozzle plate to a liquid printer, wherein, in use, each nozzle can be driven at its resonant frequency such that motion of the driven nozzle causes liquid to be ejected only from the driven nozzle.
A fluid spray dispenser (2) having a fluid reservoir (20) for holding a fluid to be dispensed, a spray head (23) for dispensing the fluid and a porous medium (24) through which the fluid passes from the reservoir (20) to the spray head (23). The porous medium (24) has an effective pore size and/or permeability that decreases towards the spray head (23). Means and methods of creating the pore size and/or permeability gradients are discussed.
B05B 17/06 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe opérant suivant des procédés particuliers utilisant des vibrations ultrasonores
B05B 1/08 - Buses, têtes de pulvérisation ou autres dispositifs de sortie, avec ou sans dispositifs auxiliaires tels que valves, moyens de chauffage agencés pour produire un jet, un pulvérisat ou tout autre écoulement de forme ou de nature particulière, p. ex. sous forme de gouttes individuelles de nature pulsatoire, p. ex. débitant un liquide en quantités successives séparées
B05B 1/14 - Buses, têtes de pulvérisation ou autres dispositifs de sortie, avec ou sans dispositifs auxiliaires tels que valves, moyens de chauffage avec des orifices de sortie multiplesBuses, têtes de pulvérisation ou autres dispositifs de sortie, avec ou sans dispositifs auxiliaires tels que valves, moyens de chauffage avec des filtres placés dans ou à l'extérieur de l'orifice de sortie
B05B 17/00 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe
A light concentrator is provided. The light concentrator comprises a primary optical element which has an optical axis; and a core comprising a rigid body which is co-linear with the optical axis and configured to support the primary optical element.
F24J 2/06 - à éléments de concentration (éléments ou systèmes optiques en soi G02B)
F24J 2/08 - munis de lentilles comme éléments de concentration
F24J 2/54 - spécialement adapté pour un mouvement de rotation
H01L 31/052 - Moyens de refroidissement directement associés ou intégrés à la cellule PV, p.ex. éléments Peltier intégrés pour refroidissement actif ou puits thermiques directement associés aux cellules PV
76.
BATTERY HAVING AN AIR MANAGER WITH A MOVING PLATE VALVE
A gas consuming battery is provided with an air regulating system for regulating the flow of air into the battery. The battery includes a gas consuming cell having a cell housing with air entry ports for the passage of a gas contained in the air into the cell housing. A first gas consuming electrode and a second electrode are disposed within the cell housing. The air regulating system includes a valve having a moving plate disposed adjacent to another plate. In an embodiment, the moving plate and the other plate both have one or more apertures therethrough that at least partially align in an open valve position and are misaligned in a closed valve position. The air regulating system can also include an actuator for moving the moving plate relative to the fixed plate to open and close the valve. A sealing medium including a fluid containment layer and a fluid partially contained with the fluid containment layer is disposed between the moving plate and fixed plate to provide enhanced valve operation and sealing effectiveness. The fluid containment layer includes a porous material, and the fluid has a maximum wicking height, on a vertical strip of the porous material, that is equal to or greater than a maximum interfacial dimension between the valve plates.
H01M 12/06 - Éléments hybridesLeur fabrication composés d'un demi-élément du type élément à combustible et d'un demi-élément du type élément primaire avec une électrode métallique et une électrode à gaz
A pump having a substantially cylindrical shape and defining a cavity formed by a side wall closed at both ends by end walls wherein the cavity contains a fluid is disclosed. The pump further comprises an actuator operatively associated with at least one of the end walls to cause an oscillatory motion of the driven end wall to generate displacement oscillations of the driven end wall within the cavity. The pump further comprises an isolator operatively associated with a peripheral portion of the driven end wall to reduce dampening of the displacement oscillations. The pump further comprises a valve for controlling the flow of fluid through the valve. The valve has first and second plates with offsetting apertures and a sidewall disposed between the plates around the perimeter of the plates to form a cavity in fluid communication with the apertures. The valve further comprises a flap disposed and moveable between the first and second plates and having apertures substantially offset from the apertures of one plate and substantially aligned with the apertures of the other plate. The flap is motivated between the two plates in response to a change in direction of the differential pressure of fluid across the valve.
A pump having a substantially cylindrical shape and defining a cavity formed by a side wall closed at both ends by end walls wherein the cavity contains a fluid is disclosed. The pump further comprises an actuator operatively associated with at least one of the end walls to cause an oscillatory motion of the driven end wall to generate displacement oscillations of the driven end wall within the cavity. The pump further comprises an isolator operatively associated with a peripheral portion of the driven end wall to reduce dampening of the displacement oscillations.
A valve for controlling the flow of fluid having first (16) and second (14) plates with offsetting apertures and a sidewall (12) disposed between the plates around the perimeter of the plates to form a cavity (15) in fluid communication with the apertures is disclosed. The valve further comprises a flap (17) disposed and moveable between the first and second plates and having apertures (22) substantially offset from the apertures (20) of one plate (16) and substantially aligned with the apertures (18) of the other plate (14). The flap is motivated between the two plates in response to a change in direction of the differential pressure of fluid across the valve.
wherein the transducers are formed as beams in a material layer, separated by slots within the material layer, and the width of the slot varies along the length of the beams, the width of the slot being a minimum at a position substantially adjacent the nozzle.
A system for analysing an interior energy system comprising: at least one detachable sensor arranged to monitor a portion of the interior energy system; and an apparatus comprising a processor configured to receive data of a first parameter of the interior energy system from the at least one detachable sensor and determine a second parameter of the interior energy which is inferred on the basis of the received data of the first parameter; and determine a characteristic of the interior energy system from the determined second parameter. The system may provide analysis of the interior energy system and recommend improvements.
A memory device comprising: means for removably connecting said memory device to a user device; a memory; and erasing means responsive to an internally generated command for erasing at least partly said memory.
G11C 16/16 - Circuits pour effacer électriquement, p. ex. circuits de commutation de la tension d'effacement pour effacer des blocs, p. ex. des réseaux, des mots, des groupes
G11C 16/22 - Circuits de sécurité ou de protection pour empêcher l'accès non autorisé ou accidentel aux cellules de mémoire
wherein one or more pressure absorbing regions are disposed at a predetermined distance from said nozzles, in a direction perpendicular to the substantially planar array of transducers.
B41J 2/045 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant à la demande des gouttelettes ou des particules séparées les unes des autres par pression, p. ex. à l'aide de transducteurs électromécaniques
A fluid spray dispenser (2) having a fluid reservoir (20) for holding a fluid to be dispensed, a spray head (23) for dispensing the fluid and a porous medium (24) through which the fluid passes from the reservoir (20) to the spray head (23). The porous medium (24) has a pathway (25) or pathways located substantially adjacent the spray head (23) for the removal of air ingested into the porous medium (24) during spraying.
B05B 17/06 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe opérant suivant des procédés particuliers utilisant des vibrations ultrasonores
A fluid spray dispenser (2) having a fluid reservoir (20) for holding a fluid to be dispensed, a spray head (23) for dispensing the fluid and a porous medium (24) through which the fluid passes from the reservoir (20) to the spray head (23). The porous medium (24) has an effective pore size and/or permeability that decreases towards the spray head (23). Means and methods of creating the pore size and/or permeability gradients are discussed.
B05B 17/06 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe opérant suivant des procédés particuliers utilisant des vibrations ultrasonores
A spray generator ((10) comprising: a membrane (40) having a perforate portion through which, in use, a fluid is caused to flow when the membrane (40) is vibrated; an electronically-driven or a piezoelectrically driven actuator for vibrating the membrane (40); a chamber (18) for storing fluid for supply to a surface of the membrane (40); and a sealing element (13) located in and movable within the chamber (18) between a first position in which fluid flow from the chamber (18) through the membrane (40) is prevented and a second position in which fluid flow from the chamber (18) through the membrane (40) is allowed.
B05B 17/06 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe opérant suivant des procédés particuliers utilisant des vibrations ultrasonores
A dispensing system comprising: a main body having an electrically driven SMA actuator; a container for a medium to be dispensed, the container being separate from, but connectable to, the main body; a dispenser, a portion of which is, in use, to be located within the container and moveable relative thereto so as to selectively dispense a portion of the medium, the dispenser also being arranged to be connected in use to the actuator of the main body: wherein the actuator is arranged to cause relative movement between the container and the dispenser in order to dispense a predetermined portion of the medium.
A fluid pump comprising a chamber which, in use, contains a fluid to be pumped, the chamber including a main cavity having a substantially cylindrical shape bounded by first and second end walls and a side wall and a secon dary cavity extending radially outwards of the main cavity, one or more actuators which, in use, cause oscillatory motion of the first end wall in a direction substantially perpendicular to the plane of the first end wall, and whereby, in use, the axial os cillations of the end walls drive radial oscillations of the fluid pressure in the main cavity, and wherein the secondary cavity spaces the side wall from the first end wall such that the first end wall can move relative to the side wall when the actuator is activated.
A server, said server configured to receive information from a user equipment regarding interaction of the user with media content by a user of said user equipment; using said information to define preferences for said users; using said defined preferences to determine media content to be provided to said user, and transmitting information on said determined media content to said user equipment.
A user equipment comprising means for receiving identification information of a user; means for determining a selection of media content based on a user profile associated with said received identification information; and means for providing at least some of said determined media content to said user.
A light tracking device comprising first and second support members and at least one light receiving element supported on each support member by one or more resilient flexible beams which deform upon relative translational displacement of the first and second support members. The first and second support members are arranged such that relative translational displacement of the members generates rotational displacement of the element. One or more resilient flexible beams may comprise spiral arms extending from the first to the second support members.
G01S 3/786 - Systèmes pour déterminer une direction ou une déviation par rapport à une direction prédéterminée utilisant le réglage d'une orientation des caractéristiques de directivité d'un détecteur ou d'un système de détecteurs afin d'obtenir une valeur désirée du signal provenant de ce détecteur ou de ce système de détecteurs la valeur désirée étant maintenue automatiquement
F24J 2/54 - spécialement adapté pour un mouvement de rotation
A configurable module adapted for coupling to a host device comprises a stored user interface which is uploadable to the host device when it is coupled to the module. The user interface allows the module to be configured via the host device. The module may be coupled to a plurality of different host devices, including devices having a Graphical User Interface, such as a mobile phone, PDA, and laptop or personal computer. The module may be a digital audio broadcast (DAB) module including a DAB receiver. Alternatively, the module may include a wireless transceiver, such as a short range point to point, point to multi-point, or mesh wireless transceiver, for coupling the module to a network of wireless nodes, which may be the same or different. This module can also function when not coupled to a node, if configured by the host device or from prior connection with a node.
A system comprising a server (110) which is arranged to store encrypted addresses and encryption information associated with the addresses (160). The server sending the addresses and encryption information to user equipment (150) which is able to decrypt the encrypted addresses using the encryption information; and is able to access a locations associated with the addresses.
H04L 29/06 - Commande de la communication; Traitement de la communication caractérisés par un protocole
G06F 21/00 - Dispositions de sécurité pour protéger les calculateurs, leurs composants, les programmes ou les données contre une activité non autorisée
94.
BATTERY FLUID MANAGER USING SHAPE MEMORY ALLOY COMPONENTS WITH DIFFERENT ACTUATION TEMPERATURES
A battery having a high temperature fluid regulating shutoff valve, said battery comprising: at least one fluid consuming cell comprising; a cell housing comprising one or more fluid entry ports for the passage of a fluid into the cell; a first fluid consuming electrode disposed within said cell housing; a second electrode disposed within said cell housing; and a fluid regulating system comprising; a valve for adjusting the rate of passage of the fluid into said fluid consuming electrode; and an actuator for operating said valve, said actuator comprising a first shape memory alloy component for opening said valve and a second shape memory alloy component for closing said valve, wherein the first shape memory alloy component actuates the valve at a first temperature to open the valve and the second shape memory alloy component actuates the valve at a second temperature to close the valve, and wherein the second temperature is lower than the first temperature such that the second shape memory alloy component closes the valve upon reaching the second temperature.
H01M 12/06 - Éléments hybridesLeur fabrication composés d'un demi-élément du type élément à combustible et d'un demi-élément du type élément primaire avec une électrode métallique et une électrode à gaz
H01M 12/08 - Éléments hybridesLeur fabrication composés d'un demi-élément du type élément à combustible et d'un demi-élément du type à élément secondaire
95.
A BATTERY HAVING FLUID REGULATOR WITH ROTATING VALVE
A fluid consuming battery (10) is provided with a fluid regulating system (50) for regulating fluid entry into the battery. The battery (10) includes a fluid consuming cell (20) having a cell housing with fluid entry ports for the passage of a fluid into the cell housing. A first fluid consuming electrode and a second electrode are disposed within the cell housing. The fluid regulating system (50) includes a valve having a moving plate (66) disposed adjacent to a fixed plate (62). The moving plate and fixed plate both have fluid entry ports (68, 64) that align in an open valve position and are misaligned in a closed valve position. The fluid regulating system (50) also includes an actuator that may include one or more shape memory alloy (SMA) components (82a, 82b) for moving the moving plate (66) relative to the fixed plate (62) to open and close the valve.
H01M 12/06 - Éléments hybridesLeur fabrication composés d'un demi-élément du type élément à combustible et d'un demi-élément du type élément primaire avec une électrode métallique et une électrode à gaz
H01M 12/08 - Éléments hybridesLeur fabrication composés d'un demi-élément du type élément à combustible et d'un demi-élément du type à élément secondaire
96.
BATTERY HAVING FLUID REGULATOR WITH PRESSURE EQUALIZATION
A battery comprising: a cell housing having at least one fluid entry port for the passage of a fluid into said cell housing,- a first fluid consuming electrode disposed within said -cell housing; a second electrode disposed within said cell housing; and a fluid regulating system disposed in fluid communication with said at least one fluid entry port to selectively allow fluid to enter into said at least one fluid entry port to reach said first fluid consuming electrode, said fluid regulating system comprising a valve having an open position and a closed position and said fluid regulating system further comprising a chassis comprising a fluid passage extending between an inside port in fluid communication with said at least one fluid.entry port and an outside port in fluid communication with the outside environment, such that fluid released from the cell housing is able -to pass through the fluid passage in the chassis to the outside.environment when said valve is in the closed position.
H01M 12/08 - Éléments hybridesLeur fabrication composés d'un demi-élément du type élément à combustible et d'un demi-élément du type à élément secondaire
H01M 12/06 - Éléments hybridesLeur fabrication composés d'un demi-élément du type élément à combustible et d'un demi-élément du type élément primaire avec une électrode métallique et une électrode à gaz
A user equipment comprising; a receiver for receiving transmitted data, said receiver comprising an antenna arrangement comprising a ferrite core, said core being surrounded by a sleeve, said antenna arrangement being such that said user equipment is arranged to receive signals in a frequency range of 50 to 400MHz.
An electronic drive system for a droplet spray generation device (10) has a droplet generator (11) with a perforate membrane (32) driven by a piezoelectric transducer (31). An electronic circuit controlsa power supply (21) to control the charging of a capacitor (22) to a supply voltage providing power to a power amplifier (23) connected to receive electric power from the capacitor and supply a drive signal to the piezoelectric transducer. The electronic circuitis also arranged to control the operation of the power amplifier (23) including the drive signal operating frequency at substantially its resonant frequency, where the resonant frequency is calculated by measuring and/or timing changes to the voltage across the capacitor whenthe droplet generatoris operatedin a plurality of bursts at different frequencies, by charging the capacitor (22) to a given voltage, and either actuating the droplet generator for a given time and either measuring the voltage drop across the capacitor at the end of the given time or the time taken to recharge the capacitor to the set value thereafter, or actuating the droplet generator and measuring the time taken for the voltage to fall to a known value,and determining as the resonant frequency of the droplet generator, the frequency at which respectively the time to recharge is the greatest, or the voltage drop is the greatest, or the time taken for the voltage to fall to the known value is shortest, and toset the drive signal operating frequency at the resonant frequency thus determined.
H01L 41/04 - DISPOSITIFS À SEMI-CONDUCTEURS; DISPOSITIFS ÉLECTRIQUES À L'ÉTAT SOLIDE NON PRÉVUS AILLEURS - Détails - Détails d'éléments piézo-électriques ou électrostrictifs
B05B 17/06 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe opérant suivant des procédés particuliers utilisant des vibrations ultrasonores
A device comprising a receiver for receiving a broadcast; a processor for processing said broadcast to extract at least one data channel or service from said broadcast means for connecting said device to user equipment, said connecting means being arranged to establish a connection with said user equipment whereby said extracted data channel or service can be transferred securely to said user equipment.
H04H 60/80 - Dispositions caractérisées par des systèmes de transmission autres que ceux utilisés pour la radiodiffusion, p. ex. Internet caractérisées par des sites de départ ou des sites de destination caractérisées par la transmission entre appareils terminaux
A method of projecting liquid as jets or droplets from a nozzle (13) provided on a transducer (7) formed by a region of a material layer, the method comprising the steps of : supplying liquid to an inner end of the nozzle; exciting the nozzle to cause movement of the nozzle in a direction substantially aligned with the nozzle axis in order to project liquid as a droplet from an outer face of the nozzle; wherein the step of exciting the nozzle comprises sequentially driving the transducer with a first rising voltage change (40,44a, 45a, 46a, 47a, 48a), a first falling voltage change (41, 44b, 45b, 46b, 47b, 48b), a second rising voltage change (42, 44c, 45c, 46c, 47c, 48c) and a second falling voltage change; and wherein the first rising voltage change and the first falling voltage change are timed so that they enhance the movement of the material layer, and the second rising voltage change and the second falling voltage change are timed so that they substantially cancel the movement of the material layer.
B41J 2/045 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant à la demande des gouttelettes ou des particules séparées les unes des autres par pression, p. ex. à l'aide de transducteurs électromécaniques
brevets
