Class 279/49 - Loose jaws

Subclass of Class 279 - Chucks or sockets
Definition: Devices wherein the spring jaw member is loosely inserted
No. of patents: 26
Last issue date: 05/06/2008

Number	Title	Issue Date
7367891	Techniques for controlling transfer of torque using detent members responsive to radial force A torque limiting device includes a base configured to reside in a fixed position relative to a drive unit, an input shaft assembly configured to receive a torque load from the drive unit, and an output shaft assembly which is capable of rotating about an axis. The ...	05/06/2008
7367238	Test apparatus using a pneumatic collet and method to clamp a bar A pneumatic collet assembly has a housing, a piston, a collet, and ball bearings. The piston is disposed within the housing. A bore within the piston receives the collet. The collet has a base and fingers. The fingers of the collet define a center channel or bore co...	05/06/2008
7364390	Drilling tool Disclosed is a drilling tool comprising a first drill bit (2) that is provided with at least two forward cutting edges (4, 5) and a second drill bit (3) which encompasses at least two rear cutting edges (6, 7). A cutting groove (8, 9	04/29/2008
7320568	Tool holder A tool holder is equipped with a tip run-out correction mechanism for correcting run-out of the tip of the tool. The tip run-out correction mechanism includes an annular stepped portion formed on a cylindrical support portion of a holder body; a ring member rotatabl...	01/22/2008
7264429	Tool free collet assembly A collet assembly, for selectively attaching a tool accessory to a tool, having a collet nut rotatably connectable to the tool, a collet compressible by the collet nut, and a torque application feature movably connected with the tool. The torque application feature ...	09/04/2007
7261302	Collet and lock nut assembly A collet and lock nut assembly includes a collet for receiving a cutting tool shank and a lock nut for creating a gripping force between the collet and the shank. The collet has a nose portion and a body portion separated by an annular groove. The lock nut has a plu...	08/28/2007
7210212	Bayonet collet pickup tool for agile fixturing A bayonet collet pickup tool includes a collet chuck having a collet portion including a bore disposed therein. A collet is held in the bore and is operable therein. A bayonet cap is mounted to an outer surface of the collet chuck proximate the bore. The bayonet cap...	05/01/2007
7112143	Thread former or tap Cold thread forming tap or screw tap with a shaft, said shaft having a chuck portion at the one end and a forming or cutting profile portion on the other end, the forming or cutting profile portion being realised as a separate profile element and being fixable centr...	09/26/2006
7080964	Tool chuck having a light transmitting capability A preferred embodiment of the invention comprises a tool chuck for a power hand tool of the type which has a generally cylindrical elongated housing with a motor contained within the housing or case and the motor having an output shaft that extends from the nose end...	07/25/2006
6932357	Gear reducing collet nut assembly A gear reducing collet nut assembly is provided for holding a tool bit. The assembly includes an outer grip sleeve that can be rotated to actuate a clamping structure with a bore for holding a tool bit. More specifically, the assembly includes a planetary gear syste...	08/23/2005
6923451	Tool holder In order to provide a tool holder which greatly reduces frictional resistance between a locknut and a taper collet, and eliminates a twisting of the taper collet during tightening of the locknut, in a tool holder comprising a locknut 13 which pushes a taper c...	08/02/2005
6908085	Rotating tool chucking device A Chucking device comprising a collet with an external taper and a collet holder with a taper socket for the chucking of a rotating part, wherein the taper socket of the collet holder and the external taper of the collet have a taper angle which is smaller than the ...	06/21/2005
6641145	Miniature drill chuck A miniature drill chuck has a drill chuck housing and a thrust member positioned in the interior for moving clamping jaws into their clamping position during a threading movement of the drill chuck housing onto a machine spindle. The thrust member is long...	11/04/2003
6508475	Holding apparatus with improved retention ability and method of holding a tool A tool holding apparatus includes a spindle and a collet nut engaged with a spindle wherein a recess is defined between the spindle and the collet nut. A collet is disposed in the recess and includes a first tapered portion and a second tapered portion sp...	01/21/2003
6454277	Fastening chuck device for machine tool A fastening device for fastening a tool member to a machine tool includes a mouth having an inclined inner peripheral surface, a chuck member received in the mouth and having one or more spring blades and having an inclined outer peripheral surface for en...	09/24/2002
6179303	Device for accomodating a tool or a support element in a machine tool or a spindle A device for receiving a tool or support element in a machine tool or spindle has a tool carrier receiving member arranged in a machine tool or spindle and a tool carrier having a tool receiving member for a tool as well as a clamping device for securing ...	01/30/2001
6155576	Rotary power tool with expanded collet range A rotary power tool designed to accept a wider range of tool shank diameters, and particularly larger diameters, without any special adapters, including a threaded output spindle with a stepped internal bore including an enlarged counter bore at its end. ...	12/05/2000
6062574	Tool bit holder A tool bit holder having a collet nut engageable with a rotary and/or reciprocating output shaft having a hollow free end with a collet, having jaws with respective head and shank portions, disposed in the hollow interior of the collet nut and an annular ...	05/16/2000
5957467	Clamping chuck A clamping chuck with a chuck body, a conical receptacle for a collet chuck provided therein, a tension sleeve extending over the collet chuck, and a clamping nut disposed on the chuck body, which can be screwed together with the tension sleeve, wherein a...	09/28/1999
5947484	Quick-change chuck device A quick release chuck device has a body member defining an axially extending bore for receipt of a tool shank. At least a portion of the bore is defined by a plurality of radially compressible and axially extending gripping segments. The gripping segments...	09/07/1999
5873580	Tool holder with interchangeable collet/chuck system A tool holder for small hand tools such as screw driver sets, drill sets, etc., which tool holder has external threads near one end which accommodate a compression sleeve which fits over and compresses a tool holding collet/chuck. Within the tool holder i...	02/23/1999
5383673	Collet for a square-shank tap A collet is designed for a tool having a cylindrical shank and a square drive at the rearward end of the cylindrical shank. The collet includes a collet body having a plurality of radially compressible collet segments. An axial bore is formed in the colle...	01/24/1995
5301961	Chuck for tool, workpiece, etc. A chuck for a tool, a workpiece and the like has a chuck body having an inner receptacle, a clamping device accommodated in the inner receptacle and having axially projecting spring regions, the clamping device having two ends which are axially supported ...	04/12/1994
5009539	Clamping set with screw sleeve A clamping arrangement includes taper sleeves which are movable axially towards each other and upon movement in a specific direction open outward radially, so that an outer component can be clamped on a shaft. The axial displacement of the taper sleeves t...	04/23/1991
4971340	Collet The collect (20) is composed of a foundation body (21) and a closer (22). The foundation body (21) can be connected to the tightening device of a machine tool. The closer (22) is divided into individual clamping jaws (38) which are connected to one anothe...	11/20/1990
4215871	Hand held collet A hand-held collet for holding a tool or the like within displaceable jaw pieces which are mounted on sprung rods accommodated within a hollow tubular handle....	08/05/1980

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Class 279/49 - Loose jaws