Abstract: The invention relates to a structure-improved clamping chuck, which is mainly a sleeve provided for placing a clamp inside, a base is fastened on its rear end, and a through hole is set on its front end for a tool piece passing through, the clamp includes four jaws arranged in a ring, elastic elements are set in between two adjacent jaws, two limit ends are formed respectively between two inner sides of each jaw, one end of a drive rod is screwed in the sleeve, the drive rod is driven by electric (air) power, a roller tray is slipped on an upper end of the drive rod, an ejecting block is set on the roller tray, the ejecting block is set below the clamp. The ejecting block is pushed or left the clamp by rotating the drive rod, to clamp or departing from release a tool piece.

Abstract: A transmission mechanism of a carving grinder and particularly to a transmission mechanism of a carving grinder capable of maintaining concentricity during rotation and enhancing stability to reduce transmission wobbling is provided. The mechanism includes a motor and a transmission tube coupled through a motor transmission member. The motor transmission member has a shaft and a driving member with an axle held by two bearings to improve steadiness during rotation of the shaft and axle. The axle has an integrated embossed key at one end to achieve concentricity. The transmission tube and motor transmission member and driving member are coupled through a square pin and a square hole to further enhance rotation steadiness.

Abstract: An improved transmission mechanism of a carving grinder and particularly to a transmission mechanism of a carving grinder capable of maintaining concentricity during rotation and enhancing stability to reduce transmission wobbling is provided. The mechanism includes a motor and a transmission tube coupled through a motor transmission member. The motor transmission member has a shaft and a driving member with an axle held by two bearings to improve steadiness during rotation of the shaft and axle. The axle has an integrated embossed key at one end to achieve concentricity. The transmission tube and motor transmission member and driving member are coupled through a square pin and a square hole to further enhance rotation steadiness.

Abstract: The present invention relates to a kit and method for detecting BEFV of suspected patient. The present invention also relates to primers and probe used to detect BEFV.

Abstract: The present invention relates to a structure improvement of electric grinder, and more particularly to the structure improvement of an electric grinder whose components can be quickly assembled and disassembled.

Abstract: A sculpturing tool includes a movable member and a rotatable member respectively received in the main tube which is connected to a driving member connected to the rotatable member. The movable member is connected to blade at its first end and has a first ball rotatably and eccentrically received in its second end thereof. The rotatable member has a second ball rotatably and eccentrically received in the end opposite to the driving member so that when the rotatable member is rotated, the movable member is moved in the longitudinal direction when the second ball rolls over the first ball.