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| Number | Title | Issue Date |
| 8141884 | Clamping device The invention relates to a clamping device which comprises a base, having a center holding fixture for a structural component to be clamped and a plurality of cavities arranged around the holding fixture. The base can be elastically deformed in such a manner by radi... | 03/27/2012 |
| 7328903 | Chuck A chuck has an attachment device for attaching the chuck to a machine spindle and a collet with clamping jaws defining an insertion opening at an end of the chuck opposite the attachment device. A sliding sleeve surrounds the clamping jaws and is axially moveable in... | 02/12/2008 |
| 7316529 | Router bit system A router bit system includes a bit (or bits) and a bit holding assembly for attaching the bit to the drive shaft of a router without the use of additional hand tools. The bit holding assembly, which is attached to the drive shaft of the router, includes a chuck havi... | 01/08/2008 |
| 7284936 | Tool bit and collet assembly and method A tool bit and collet assembly, and method of assembling, wherein there is a collar for holding the collet in the radially inward position to thereby hold the tool bit. Camming surfaces are between the tool bit and the collet, and between the collet and the collar, ... | 10/23/2007 |
| 7258351 | Quick-action chuck A quick-action chuck, in particular for a power tool, has an actuating element (20) and a control device which includes at least one mechanism (12, 22, 36, 42, 50) for controlling at least one locking device (10) that serves to absorb a chucking... | 08/21/2007 |
| 7175184 | Collect tool holder and method of making same A tool holder for a tool with a recess having detent disposed therein for holding the tool axially, and having a sleeve telescoped over a collet which has flexible fingers and with the sleeve and the fingers having camming surfaces for effecting clamping onto the to... | 02/13/2007 |
| 7140817 | Router bit system A router bit system includes a bit (or bits) and a bit holding assembly for attaching the bit to the drive shaft of a router without the use of additional hand tools. The bit holding assembly, which is attached to the drive shaft of the router, includes a chuck havi... | 11/28/2006 |
| 6769846 | Coupling device A coupling device for engaging an exchangeable tool support (7) for corotation with a shaft (2) of a motor (1), with the shaft (2) mounting at is driven end a hollow shaft projection (3) for receiving the tool support (7). A... | 08/03/2004 |
| 6547654 | Automatic abrasive sleeve tightening means and quick release system for an oscillating spindle sander An automatic abrasive sleeve tightening means and quick release system for an oscillating spindle sander is disclosed, in which a flyweight assembly automatically tightens the abrasive sleeve against the sanding drum of the oscillating spindle sander, upo... | 04/15/2003 |
| 6481281 | Wheel mount chuck and wheel mount method for vehicle wheel balancers A multi-jawed chuck adapter (100) is secured substantially coaxially within a pilot hole (20) of a wheel and tire assembly (10) to facilitate mounting of the wheel and tire assembly (10) upon the spindle shaft (12) of a vehicle wheel balancer, eliminating... | 11/19/2002 |
| 6443462 | High speed drill holders A collet for carrying a high-speed drill which comprises a collar (2) arranged to enclose a drill shank (1), an outer rim support (8) arranged for attachment to a drill, and a clamping mechanism between the collar and the outer rim support (8). The clampi... | 09/03/2002 |
| 6425584 | Sliding jaw chuck assembly A sliding jaw chuck assembly for heavy duty applications has a plurality of radially slidable jaw mounts each actuated by an L-shaped lever mounted for rocking movement about a supporting trunion. The chuck assembly includes a sealed housing subassembly w... | 07/30/2002 |
| 6227778 | Tool and spindle with centrifugal force clamping A description is given of a set (10) consisting of a spindle (1) and tool (2) for machining operations to remove shavings by means of rotation, wherein the clamping of tool (2) is accomplished by the action of centrifugal force acting on one or more of th... | 05/08/2001 |
| 5964690 | Mechanism for fixing a blood centrifuge bowl to a rotating spindle A mechanism for fixing a blood centrifuge bowl to a rotating spindle is disclosed having two parts. The first part converts downward movement of an outer collar of a chuck into inward and downward pressure against a blood bowl to be secured in the chuck. ... | 10/12/1999 |
| 5921563 | Quick release integrated collet and chuck device A quick release chuck device includes a body member having a frusto-conical chamber defined therein for receipt of a conventional collet. A plurality of weighted cam members are disposed around the circumference of the body member and include a first end ... | 07/13/1999 |
| 5833246 | Centrifugal chuck for surgical handpiece A centrifugal chuck for a surgical handpiece is adapted to automatically engage a surgical instrument so it may be driven by the handpiece. The centrifugal chuck comprises a pivotable trunnion body situated within a hollow drive shaft, the trunnion body h... | 11/10/1998 |
| 5820136 | Quick release integrated collet and chuck device A quick release chuck device includes a body member having a frustoconical chamber defined therein with a collet device operably housed in the chamber. At least two longitudinally extending members are disposed equally spaced around the circumference of t... | 10/13/1998 |
| 5820135 | Counter centrifugal chuck and mounting systems The chuck includes a body with an axial recess and a transverse opening intersecting the recess. First and second cam members are disposed at least partially within the transverse opening and have first and second passages, respectively, which squeeze a c... | 10/13/1998 |
| 5735535 | Powered high speed rotary surgical handpiece chuck and tools A replaceable rotary patient tissue working tool and a high speed rotational surgical handpiece having a centrifugal chuck for axial push-in chucking and pull-centrifugal locking member having a mass portion located on one side of a rotational axis of a d... | 04/07/1998 |
| 5658231 | Mechanism for securing a separation bowl to a mechanical chuck A centrifugal chuck comprising a chuck housing and a plurality of fingers pivotally mounted around the outer perimeter of the chuck housing. Each finger includes a tip, adapted to receive the base portion of a separation bowl. The fingers are mounted to t... | 08/19/1997 |
| 5591113 | Centrifugally assisted centrifuge bowl mount A centrifuge is provided with a mounting arrangement that secures a centrifuge bowl to a turntable in response to centrifugal force generated when the turntable is rotated. The centrifuge includes first and second retainers, one of which is connected to t... | 01/07/1997 |
| 5433562 | Cutter quick change system The tool spindle has a drive plate on which a cutter is mounted. Drive keys on the drive plate engage slots in the cutter so that the cutter rotates with the drive plate. A clamp bar is provided to clamp the cutter against the drive plate. The cutter is f... | 07/18/1995 |
| 5354075 | Keyless drill chuck A keyless drill chuck apparatus includes a tubular body having a longitudinal bore that includes first and second bore sections. The first bore section is of a smaller diameter and is closer to the proximal end portion of the drill, that end portion that ... | 10/11/1994 |
| 5350427 | Wafer retaining platen having peripheral clamp and wafer lifting means An apparatus for releasably holding a workpiece in semiconductor process systems such as a batch ion implanter which comprises a linkage mechanism mounted onto the backside of the platen for clamping the wafer against the fence of the supporting means and... | 09/27/1994 |
| 5147165 | Centrifugal spindle A centrifugal spindle is described comprising a hollow shaft (1) having a collet (2) at one end for gripping a tool shank (12) and a centrifugal loading means (3) housed within the shaft (1). The loading means comprises two coaxial pistons (4,5) spaced fr... | 09/15/1992 |
| 5060957 | Power-operated chuck A power-operated chuck having a chuck body and clamping jaws that are displaceably guided in radial guides of the chuck body and that are adapted to be actuated by at least one drive element, which is displaceably guided in the chuck body and is actuated ... | 10/29/1991 |
| 4995625 | Mechanism for preventing inadvertent chuck release A collet-operating mechanism employs a plurality of locking pins which, under centrifugal forces generated during rotation of a machine spindle, engage an element of a slidably mounted collet-operating member to maintain the collet in closed condition.... | 02/26/1991 |
| 4991860 | Drill chuck Clamp jaws are arranged symmetrically about a rotation axis in a chuck body and guided in a direction inclined to the rotation axis. A tightening ring is mounted rotatable and axially nonslidable on the chuck body and is provided with a tightening thread ... | 02/12/1991 |
| 4789169 | Attachment means for a work piece A chuck adapted to clamp a workpiece (7) during wood turning. The chuck comprises a body (3), at one end attachable to a lathe (1) and at the opposite end having two radially opposed eccenters (8, 9) with equal eccentricity. Each of the eccenters is encom... | 12/06/1988 |
| 4761876 | High speed precision drilling system A high speed drilling system is disclosed for high speed drilling of very small holes in workpieces such as printed circuit boards. The X-Y positioning system includes air bearings to provide lift between the stationary guide beams, the crossbeam and the ... | 08/09/1988 |
| 4709512 | Chucking device of workpiece in grinding machine A chucking device of a workpiece to be ground in a grinding machine, including a rotatable housing, a pair of elastically biased weight bodies which are opposed in the housing so as to come away from and close to each other a pair of opposed clamp plates ... | 12/01/1987 |
| 4677758 | Spin drier for semiconductor material Disclosed herein is a spin drier for semiconductor material including a vertical shaft, a table located on the top of the shaft, support members for supporting thereon a semiconductor material, holding members for holding the outer periphery of the suppor... | 07/07/1987 |
| 4572525 | Centrifugal chucking apparatus Centrifugal chucking apparatus for fixing a member to be rotated to a rotatable driving member includes a cylindrical cage member adapted to be mounted for rotation with the driving member, at least one clamping body movably mounted within an aperture for... | 02/25/1986 |
| 4566358 | Bar stock guide arrangement for screw machines A bar stock guide arrangement for screw machines having a rotatably mounted fitting which has a horizontal opening for loosely passing the bar stock and guide rollers in the fitting at circumferentially spaced locations around the bar stock. The guide rol... | 01/28/1986 |
| 4432506 | Reel and hub lock for tape drives A mechanism for centering and locking a tape reel or a tape hub on a drive shaft in a tape drive. A mechanism which can be actuated manually to lock a reel or hub in place and to unlock the reel or hub and also which will automatically lock the reel or hu... | 02/21/1984 |
| 4303252 | Chuck for rotary tool A chuck for a rotary tool includes a body having a cylindrical bore for receiving the shank of a work performing member. A sleeve surrounds the body and forms an annular space in which is disposed a pair of opposed jaws which extend through opposed slots ... | 12/01/1981 |
| 4234201 | Chuck for miniature rotary tool The present invention is directed to a chuck for use in a motor driven tool. The chuck is internally mounted within a transverse opening which intersects a longitudinal opening in the output shaft of the motor driven tool and includes an internal, transve... | 11/18/1980 |
| 4170888 | Apparatus for spin-forming wheel rims In an apparatus for spin-forming a drop-center wheel rim which includes axially reciprocable head and tail stock sections, a centrifugally actuated clamp is mounted on the tail stock section and is adapted to engage an internal groove in the head stock se... | 10/16/1979 |
| 4017203 | High speed drill system The system includes a spindle for holding a high speed drill, the spindle being provided with longitudinal slots permitting its exterior side walls to be biased inwardly and grip the drill. Eccentric weights surround the spindle in such a manner that upon... | 04/12/1977 |
| 3993018 | Centrifugal support for workpieces A chuck for a workpiece, rotatable in spaced relation to and about an axis of rotation, and having a clamp jaw radially movable under centrifugal force to engage the workpiece against fixed mating clamp members. The structure can also have optional means ... | 11/23/1976 |
