Class 279/150 - Nonseparable or built-in

Subclass of Class 279 - Chucks or sockets
Definition: A device which is permanently attached to the chuck.
No. of patents: 23
Last issue date: 03/18/2008

Number	Title	Issue Date
7344141	Collet system for rotary tools A collet system for a rotary tool includes a collet for receiving a bit; a wrench assembly for engaging the collet, the wrench assembly moving along an axis extending axially through the collet between a first position where the wrench assembly is disengaged from th...	03/18/2008
7293944	Power tool with tool bit holder operator A power tool having a body, a tool bit holder protruding from the tool body for holding and rotating a tool bit about an axis of rotation, and an operator for operating the bit holder. The operator includes an annular member rotationally engageable with the bit hold...	11/13/2007
6488287	Locking chuck A tool driver includes a housing and a rotatable drive shaft extending therefrom. A chuck for holding the tool includes a generally cylindrical body having a nose section and a tail section. Each of a plurality of jaws is slidably positioned in one of a p...	12/03/2002
6241259	Locking chuck A tool driver includes a housing and a rotatable drive shaft extending therefrom. A chuck for holding the tool includes a generally cylindrical body having a nose section and a tail section. Each of a plurality of jaws is slidably positioned in one of a p...	06/05/2001
6224304	Bit attaching arrangement for power tool A bit attaching arrangement for a power tool has a collet nut threadably engaging a rotatably driven shaft of the power tool. The collet nut has a plurality of slots positioned on an outer peripheral surface. A first gear is disposed on the shaft so that ...	05/01/2001
6196554	Locking chuck A tool driver includes a housing and a rotatable drive shaft extending therefrom. A chuck for holding the tool includes a generally cylindrical body member having a nose section and a tail section. Each of a plurality of jaws is slidably positioned in one...	03/06/2001
6173972	Locking chuck A driver includes a housing, a driveshaft rotatable with respect to the housing and a chuck. The chuck includes a generally cylindrical body and a nut rotatably mounted relative to the body so that relative rotation between the nut and the body moves the ...	01/16/2001
6139228	Keyless chuck assembly for a rotary driven tool A chuck assembly (22) for releasably attaching a cutting accessory (23) to a rotary driven tool such as a surgical drill (20). The chuck assembly includes a chuck head (30) from which a drive spindle (36) extends rearwardly. Clamping jaws (34) extend from...	10/31/2000
6139028	Electric chuck for machine tool and method of opening or closing gripping pawl of same The present invention relates to an electrically driven chuck for holding a chuck of a machine tool, wherein an electrically driven chuck which has no need of any driving means to be exclusively used for a holding chuck, very simplified, and freely adjust...	10/31/2000
6074140	Quick-release chuck assembly A handheld rotary power unit includes a housing with a handle and a distal end portion, a motor shaft extending through the distal end portion of the housing, and a quick-release chuck assembly connected to the motor shaft. An actuator assembly is provide...	06/13/2000
6056298	Chuck lock bit changer A keyless chuck having an outer chuck with spaced grooves, an inner chuck and chuck jaws, where the keyless chuck is mounted on an output shaft of a drill motor. A sleeve locking device mounted between the outer chuck and the drill motor housing, where th...	05/02/2000
6042310	Bit attaching arrangement for power tool A bit attaching arrangement for a power tool includes a bit locking member rotatable with respect to the output shaft of the power tool. A first gear is fixed to the bit locking member so that rotation of the first gear causes rotation of the locking memb...	03/28/2000
5988653	Auto-locking bit holding system of a hand tool An auto-locking bit holding system includes a plurality of clamping rods secured by a nut to hold a bit in a transmission block being connected to a transmission shaft of an electric hand tool, a shell covered around the transmission block and the nut, an...	11/23/1999
5191968	Shaft lock arrangement for a power tool A router including an arrangement for locking the shaft against rotation and preventing power from being supplied to the motor when the shaft is locked. The shaft is locked by movement of a lock bar which traps a flatted portion of the shaft in an appropr...	03/09/1993
5044643	Tool chuck A tool chuck according to this invention comprises a locking device disposed between a chuck body and chuck claws slidable by screw feeding. The locking device presses and locks to the chuck body by a reaction force occurring when the chuck claws clamp a ...	09/03/1991
4915555	Power drill having drill chuck tightener A reversible power drill having a drill chuck tightener is disclosed. The drill has a body and chuck reversibly rotatable with respect to the body. The tightener comprises a lever or a contact post attached to the body of the drill and an impact button at...	04/10/1990
4804048	Hand-held tool with shaft lock A hand-held power screwdriver or like tool includes a spindle which is adapted to receive and retain tool bits for rotation thereon. A collet ring is retained with a recess on the housing for slidable movement along the spindle axis. The collet functions ...	02/14/1989
4620539	Pistol grip, bone drill A pistol grip, bone drill with a lever lock for convenient locking of the drill chuck for manipulation of the chuck jaws, particularly for facilitating advances of the drill bit, the bone drill having a contoured pistol grip handle with a hand crank for r...	11/04/1986
4389146	Automatically-driven chuck accessory for hand drill An accessory is attached to a reversible electric drill-type tool, i.e., a portable electric drill, for facilitating engagement and disengagement of the shank of a drill or other tool element by the drill chuck. For this purpose, the chuck is provided wit...	06/21/1983
4386879	Operating means for a chuck An operator for a Jacobs chuck has an annular support pivoted on the chuck collar for rocking movement about an axis perpendicular to the chuck axis, a gear tooth on the support between the pivot axis and the chuck ring gear which is selectively engageabl...	06/07/1983
4358230	Chuck operating device for hand drill The drill includes the usual tool spindle driven by reversible motor, and conventional chucking jaws which rotate with the spindle. The jaws are surrounded by an actuator which is drivingly connected to the jaws, and normally rotates with the jaws when th...	11/09/1982
4324512	Portable drill with built-in chuck key A power tool such as a drill, for example, including a modified Jacobs chuck and incorporating a chuck key permanently mounted in the power tool housing and a main shaft locking device for locking the main shaft when the chuck key is used to manipulate, i...	04/13/1982
4284285	Self-adjusting rotary chuck A chuck having self-closing jaws, and a key-threaded rotary ring to engage said jaws in working contact with a tool within their grasp or to disengage said jaws so as to permit their free movement. The jaws themselves are such that the act of performing w...	08/18/1981

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Class 279/150 - Nonseparable or built-in