Abrégé

A circuit board comprises a plurality of layers, first and second reference conductive vias extending in a vertical direction through at least a portion of the plurality of layers, first and second signal conductive vias extending in the vertical direction between and spaced apart in a horizontal direction from the first and second reference conductive vias through at least a portion of the plurality of layers, and a dielectric region extending in the vertical direction between the first and second signal conductive vias. An air via extends in the vertical direction through the dielectric region between the first and second signal conductive vias. An anti-pad extends in the horizontal direction between the first and second reference conductive vias and surrounding in the horizontal direction the first and second signal conductive vias, the air via, and the dielectric region.

Classes IPC  ?

• H05K 1/02 - Circuits imprimés Détails
• H05K 3/40 - Fabrication d'éléments imprimés destinés à réaliser des connexions électriques avec ou entre des circuits imprimés
• H05K 3/20 - Appareils ou procédés pour la fabrication de circuits imprimés dans lesquels le matériau conducteur est appliqué au support isolant de manière à former le parcours conducteur recherché par apposition d'un parcours conducteur préfabriqué
• H05K 1/11 - Éléments imprimés pour réaliser des connexions électriques avec ou entre des circuits imprimés

Abrégé

A circuit board comprises a plurality of layers, first and second reference conductive vias extending in a vertical direction through at least a portion of the plurality of layers, first and second signal conductive vias extending in the vertical direction between and spaced apart in a horizontal direction from the first and second reference conductive vias through at least a portion of the plurality of layers, and a dielectric region extending in the vertical direction between the first and second signal conductive vias. An air via extends in the vertical direction through the dielectric region between the first and second signal conductive vias. An anti-pad extends in the horizontal direction between the first and second reference conductive vias and surrounding in the horizontal direction the first and second signal conductive vias, the air via, and the dielectric region.

Classes IPC  ?

• H05K 1/02 - Circuits imprimés Détails
• H05K 1/11 - Éléments imprimés pour réaliser des connexions électriques avec ou entre des circuits imprimés

Abrégé

An actuator for relatively moving two parts in a damped manner. The actuator includes a damper housing for connection to a first of the parts. The damper housing includes a damper chamber. The actuator includes a drivable damper rod for connection to a second of the parts and being movable relative to the damper housing. The damper rod includes a damper unit located within the damper chamber. The damper unit is relatively movable within the damper chamber with the damper unit movement corresponding to the relative movement between the damper housing and damper rod and the relative movement between the first and second parts. The damper unit is movable in response to hydraulic pressure force upon the damper unit. The actuator includes a pneumatic pressure source for providing a pneumatic pressure force that is transferred to provide the hydraulic pressure force upon the damper unit. The actuator includes a selectively actuatable blocking device for permitting transfer of the pneumatic pressure force from the pneumatic pressure source and blocking return of force to the pneumatic pressure source until the selectively actuatable blocking device is actuated.

Classes IPC  ?

• F15B 11/02 - Systèmes comportant essentiellement des moyens particuliers pour commander la vitesse ou la puissance d'un organe de sortie
• F15B 11/072 - Systèmes combinés hydrauliques-pneumatiques
• F15B 11/13 - Systèmes de servomoteurs dépourvus d'asservissement avec un seul servomoteur avec positions intermédiaires distinctesSystèmes de servomoteurs dépourvus d'asservissement avec un seul servomoteur avec action échelonnée utilisant des chambres de volume prédéterminé

Abrégé

A circuit card enclosure comprises a backplane including a plurality of connectors. First and second conduction rails are thermally coupled to a heat exchanger, the first and second conduction rails each comprising an inner body at least partially encapsulated by an outer body. The inner body comprises a thermally conductive material. The outer body comprises a structural material. Card slots of the circuit card enclosure are defined between opposed card channels of the first and second conduction rails. Each card slot is constructed and arranged to register an inserted circuit card with at least one of the connectors, the card channels including a thermally conductive region constructed and arranged to thermally interface with a thermal frame of an inserted circuit card, the thermally conductive region of the card channels being thermally coupled to the inner body of the conduction rail.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
• H05K 7/14 - Montage de la structure de support dans l'enveloppe, sur cadre ou sur bâti

Abrégé

A conduction-cooled enclosure comprises a card guide having a card guide channel, at least one controlled-volume cavity in the card guide channel, and a thermal interface material (TIM) in the at least one controlled-volume cavity.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

A torque transfer limiting arrangement includes a housing, an input drive shaft, an output drive shaft, and an output cam plate having a plurality of ball ramps with a plurality of balls for transmitting input torque to the output cam plate. A stator assembly is rotatably fixed relative to the housing, and includes at least one stator friction disc. A rotor assembly includes at least one rotor friction disc rotatable relative to the stator friction disc. A sensing spring permits axial displacement of the output cam plate when the input torque exceeds a predetermined maximum limit, whereupon the plurality of balls in the ball ramps cause axial displacement of the output cam to thereby drive the clutch into an engaged state causing relative rotation between the rotor and stator friction discs for isolating and frictionally dissipating the input torque.

Classes IPC  ?

• F16D 43/20 - Embrayages automatiques à commande interne actionnés entièrement mécaniquement commandés par le couple, p. ex. embrayages à déclenchement en cas de surcharge, embrayages à glissement avec dispositifs par lesquels le couple fait varier la pression d'embrayage
• F16D 13/52 - Embrayages à lamelles multiples

Abrégé

An actuator and flap arrangement includes a flap, movable relative to a support structure, and two actuators. Each actuator has a portion fixed relative to the support structure, a portion movable relative to the fixed portion and connected to the flap for transfer of motor force to flap upon movement of the movable portion, and a motor for moving the movable portion relative to the fixed portion. The arrangement also includes a device interconnecting the two actuators for transferring motive force between the two actuators.

Classes IPC  ?

• B64C 3/50 - Variation de la courbure par volets de bord d'attaque ou de bord de fuite

Abrégé

An arrangement having a cooling function is provided, comprising a circuit board, a plurality of heat generating devices attached to the circuit board, a cooling device thermally connected to one of the plurality of electronic devices, and a coolant plate. An example of the arrangement can include a source of pressurized coolant fluid connected to the coolant plate and adapted to cause the coolant fluid to be transferred between the coolant plate and the cooling device. In addition or alternatively, the arrangement can include a plurality of flexible conduits and an adjustment device adapted to selectively adjust he height of the cooling device. In addition or alternatively, a cooling apparatus within a cooling arrangement can comprise a cooling device, a coolant plate, and a coolant pathway including a first passage formed in the coolant plate and a second passage formed in the cooling device.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
• F28D 15/00 - Appareils échangeurs de chaleur dans lesquels l'agent intermédiaire de transfert de chaleur en tubes fermés passe dans ou à travers les parois des canalisations