Abrégé

The present invention relates to a vacuum purifier which recovers a purified substance by sublimating or vaporizing material in a vacuum. More specifically, the present invention relates to a vertical continuous vacuum purifier capable of reducing purification processing time and purifying at high-purity levels. The vertical continuous vacuum purifier of the present invention includes: a vertical vacuum tube; a rotation unit which rotates the vertical vacuum tube; a material supply unit installed above the vertical vacuum tube to allow material to be injected into the vertical vacuum tube; a heater unit which is installed in the vertical vacuum tube and heats the material to sublimate or evaporate the material; a blade which removes purified material that has vaporized or sublimated and adhered to the inner wall of the vertical vacuum tube; a recovery unit which is installed under the vertical vacuum tube and collects the purified material removed by the blade; and a control unit which controls the temperature of the heater unit and the degree of vacuum within the vertical vacuum tube.

Classes IPC  ?

• B01D 7/00 - Sublimation
• B01D 1/30 - Accessoires pour évaporateurs

Abrégé

The present invention relates to a dental prosthesis removing member. The present invention comprises: a head portion (110), which is coupled to a manual operation handle mechanism (10), and which comprises three separate pieces; a rotation compressing portion (120) formed to absorb noise resulting from metallic coupling, to buffer impact forces resulting from collision of a metallic coupling body, and to withstand pressurizing forces occurring when the manual operation handle mechanism (10) is pressurized downwards while being rotated; a screw portion (130) formed such that the same can form screw coupling with the prosthesis (20), the pitch of the thread of the screw portion (130) being formed in conformity with the thickness of the prosthesis; and a bottom surface portion (140) formed to be flat or round on a part that abuts the surface of a tooth. The present invention is characterized in that the length (h4) between the uppermost end of the head portion and the bottommost end of the bottom surface portion lies in the range of 12mm to 30mm; the length (h1) of the head portion lies in the range of 3mm to 8mm; the length (h2) of the screw portion lies in the range of 4mm to 20mm; and the length of the diameter of the outer diameter of the rotation compressing portion (120) lies in the range of 4mm to 8mm. Use of the present invention makes it possible to remove a prosthesis from the outer surface of a tooth in a simple and convenient manner.

Classes IPC  ?

• A61C 3/16 - Daviers de dentiste pour l'enlèvement des couronnes
• A61C 3/14 - Daviers de dentiste ou similaires pour l'extraction des dents
• A61C 19/06 - Appareils ou dispositifs pour traitement thérapeutique
• A61C 19/00 - Accessoires dentaires

Abrégé

The present invention relates to a dental prosthesis removal kit. The present invention provides a dental prosthesis removal kit comprising: a screw member having an introduction portion formed to protrude from the front end thereof so as to be fitted into a groove portion formed on the center portion of a prosthesis, which is installed on a tooth, to be concave inwards, the screw member having a bolt portion formed on the rear end of the introduction portion, a thread being formed on the outer peripheral surface of the bolt portion, and the screw member having a head portion formed on the rear end of the bolt portion, the head portion having a polygonal cross section; and a wrench member having a coupler formed on one side thereof in a shape corresponding to that of the head portion and having a handle formed on the other side thereof such that the head portion is fitted to the coupler, thereby fastening or unfastening the screw member. When the present invention is used, a prosthesis that covers the outer surface of a tooth can be removed easily and conveniently.

Classes IPC  ?

• A61C 3/16 - Daviers de dentiste pour l'enlèvement des couronnes
• A61C 5/02 - Instruments pour le traitement chirurgical des racines ou des nerfs dentaires; Aiguilles pour retirer le nerf; Méthodes ou instruments pour le traitement des racines

Abrégé

The present invention relates to an effective gunshot determination apparatus. The effective gunshot determination apparatus according to one aspect of the present invention includes: a sensor unit which measures the impact from a gunshot and outputs an electrical signal corresponding to the impact; a trigger signal generation unit which amplifies the electrical signal by a previously set amplification factor, and then generates a trigger signal based on the difference between the voltage value resulting from the charging and discharging of the amplified signal and a previously set threshold value; and an effective gunshot determination unit, which determines the gunshot to be an effective gunshot in the event the amplitude or pulse width of the trigger signal matches at least a previously set amplitude or pulse width.

Classes IPC  ?

• F41J 5/04 - Systèmes électriques indicateurs de coups au butDétection des coups au but par l'actionnement d'un contact ou d'un commutateur électrique
• F41J 5/052 - Cibles à contacts électriques multiples, chaque contact étant en correspondance avec une section particulière de la cible et se fermant par le déplacement de cette section

Abrégé

The present invention relates to a digital SMPS apparatus for supplying power to an LED using a mirror circuit system which can adjust a current amount of the LED without including passive devices such as a switching device for supplying power, an inductor for stabilizing a current, and a condenser. The SMPS apparatus includes: a power supply part including AC input terminals connected to a reference terminal in series and a bridge rectifier circuit connected to the AC input terminal in series to supply rectified power into an initial LED and a supplying power control part; and the supplying power control part including a built-in mirror circuit to detect an output voltage and current of a 1st row to an nth row, thereby controlling an output voltage and current so that the output voltage and current are constantly maintained according to a change of the output voltage and current of the 1st row to nth row. Thus, since the digital SMPS apparatus includes the mirror circuit, passive devices such as an inductor and a capacitor are not required. Therefore, an LED device may have an increased life cycle.

Classes IPC  ?

• H05B 37/02 - Commande
• H04N 7/18 - Systèmes de télévision en circuit fermé [CCTV], c.-à-d. systèmes dans lesquels le signal vidéo n'est pas diffusé