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| Number | Title | Issue Date |
| 7381018 | Tool chuck The invention relates to a tool holder 1 for a rotating tool, especially a drilling head and/or milling head, comprising a drive shaft 4 that can be connected to a drive motor and a collet chuck 2 that is non-rotatably connected to the drive sha... | 06/03/2008 |
| 7371036 | Tool holding device and method for positioning a tool Disclosed is a tool holding device (22, 50, 58) for retaining a tool (24) on a tool chuck (20). Said tool holding device (22, 50, 58) comprises a tool-accommodating area (32, 52, 66) for at least partly receiving the tool (24 | 05/13/2008 |
| 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 |
| 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 |
| 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 |
| 7258348 | Machining fixture for centering and holding workpiece A centering and holding fixture includes a base, a piston disposed within a piston chamber at least partially located within the base, and a radially flexible ring connected to the piston by force transmission apparatus operable to contract and expand the radially f... | 08/21/2007 |
| 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 |
| 7178811 | Chuck capable of drawing in and pushing out collet A chuck is composed of a collet sleeve, a sliding member, at least one linkage member, a collet, and a driving member. The collet sleeve includes an axial hole running therethrough and at least one opening in communication with the axial hole. The sliding member is ... | 02/20/2007 |
| 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 |
| 7107690 | Electric cutting tool An electric cutting tool has a body, a chuck at an end of the body for attaching a cutting implement having a rear end including a recess, and a drive mechanism for driving the chuck to slide in reciprocation for operating the cutting implement. The chuck has a gap ... | 09/19/2006 |
| 7037053 | 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... | 05/02/2006 |
| 7036409 | Spring collet for machine tools In a spindle assembly for machine tools, the axial length λ of the collar of a spring collet is determined as a function of the axial course length c of a clamping sleeve operating spring collet. This axial length λ is preferably retained within an interval rangin... | 05/02/2006 |
| 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 |
| 6913429 | Tooless bit retaining assembly A bit retaining assembly for retaining a bit in a rotary tool, in particular a router such as a hand-held router, a table-mounted router, a pocket cutter, a laminate trimmer, a rotary cutout tool, or the like employs a planetary gear system for multiplying the torqu... | 07/05/2005 |
| 6908086 | Chuck The chuck (10) is comprised of a chuck body (11) having an inner cone surface and a grip head (12) with a corresponding outer cone surface. The grip head (12) is subdivided into individual clamping jaws (21) by several seperating s... | 06/21/2005 |
| 6832433 | Machining apparatus and method of using same The present invention comprises a machining apparatus including a work piece holder having an adapter body with an axial bore and a translating portion located within the axial bore of the adapter body. The translating portion has a proximal end for coupling with a ... | 12/21/2004 |
| 6726221 | Dead length collet chuck assembly A collet chuck assembly includes a mount, a selectively-axially-movable collet closing sleeve, and a multiple-segment collet head. The collet head includes two axially-spaced outer circumferential cam surfaces that engage two axially-spaced inner circumferential cam... | 04/27/2004 |
| 6640679 | Collet adapter chuck assembly with axially fixed collet head A collet chuck assembly for an axially fixed collet head. The collet head is fixedly and removably mounted in a threaded bushing to prevent axial motion, and is keyed into place to prevent rotation. A sleeve assembly has cam surfaces adapted to engage the... | 11/04/2003 |
| 6575477 | Quick change true length collet chuck assembly A true length collet chuck assembly is adapted to receive and actuate a quick change, segmented collet having a flange extending radially outwardly from the outer surface of the collet adjacent a rear face of the collet. The collet chuck assembly comprise... | 06/10/2003 |
| 6557860 | Collet retainer Each of a plurality of passages in a fixture has a piston movable therein and cooperating with a collet therein to simultaneously move each collet to its workpiece retaining position and to release each collet from its workpiece retaining position. A rece... | 05/06/2003 |
| 6533292 | Pull-to-close collet chuck A pull-to-close collet chuck for use with lathes equipped with servo-type bar loaders. The chuck is configured to be coupled to a lathe drawtube and translates linear movement of the drawtube to a work-gripping action to a collet. The chuck generally incl... | 03/18/2003 |
| 6502835 | Collet holder with rotation mechanism and method A work piece holder with clamping and rotation mechanisms in a support. A holder or brake exists next to a collet and sleeve assembly to restrain the assembly from rotating. Hydraulic pumps and connections operate on the mechanisms for the clamping and ro... | 01/07/2003 |
| 6497417 | Collet chuck provided with a driven movable member which can be driven hydraulically in two opposite directions for operating a collet A collet chuck includes a tubular body and a rotating shaft assembly that is journalled within the tubular body and that defines a frustoconical recess therewithin. A belt pulley is sleeved fixedly on the rotating shaft assembly. A collet is disposed oper... | 12/24/2002 |
| 6315507 | Drill or milling head A drilling or milling head, especially for printed circuit board milling machines and/or engraving machines, having a collet chuck (11) which can be actuated by a rapid change mechanism and which is driven by a transmission. The collet chuck is opened by ... | 11/13/2001 |
| 6290241 | Fixed-length collet chuck assembly A fixed length collet chuck assembly for holding a workpiece in which the collet only translates radially and not axially is provided. The fixed length collet chuck has a longitudinal, central axis and includes a chuck body assembly and a collet. As a dra... | 09/18/2001 |
| 6264208 | Chuck assembly To provide a chuck assembly which is superior in practical usability and workability in clamping and fixing a tool to a spindle without fail and with ease by lever-operation of a specialized operational jig, a taper portion is provided on at least one of ... | 07/24/2001 |
| 6257595 | Collect chuck with quick-change cap A collet chuck assembly includes an annular mount adapted to be attached to a spindle of a turning machine, a tubular collet sleeve disposed internally to the mount including an inner tapered cam surface and adapted to be coupled to an axial moving mechan... | 07/10/2001 |
| 6244798 | Drill or milling head A drill or milling head (1), especially for printed circuit milling machines and engraving machines, including a collet chuck (27) which can be actuated by a rapid change mechanism. The drill or milling head includes a drive shaft which can be connected t... | 06/12/2001 |
| 6244797 | Router keyless chuck A router includes a tool holder which has a spindle with a bore to receive a router tool bit. A sleeve surrounds the spindle. A locking mechanism retains the router bit in the bore. The locking mechanism includes at least one rolling member in contact wit... | 06/12/2001 |
| 6224305 | Electronic lever for remotely actuating a chuck device A rotary power tool is provided having a remotely actuated chuck device. The chuck is mounted onto the end of a drive spindle that extends from the casing of the power tool. The chuck includes an outer sleeve member that is axially movable relative to the... | 05/01/2001 |
| 6224067 | Hydromechanical chuck A hydromechanical chuck intended to be mounted, with one end thereof, in a machine, such as a drilling machine, milling machine, lathe machine etc. and, with the opposite end thereof to releasably hold a shaft tool like a drill, a milling tool, a rotary s... | 05/01/2001 |
| 6209886 | Resecting tool with independent variable axial extension for tool implements and guide sleeves A resecting tool contains a rotatable chuck inside a base for engaging the drive shaft of a motor. The chuck extends into a tubular casing that has an outer actuator sleeve. The sleeve is limited to rotation relative to the casing and is used to move a pa... | 04/03/2001 |
| 6179533 | Device for clamping a knife of a machine center A device for clamping a knife of a machine center includes a kick member extends through a clamping member which is received in a sleeve. A knife is clamped by pawls extending from the clamping member and the sleeve has an annular flange to hold the pawls... | 01/30/2001 |
| 6149165 | Collet assembly and manufacturing process An Improved Collet Assembly and Manufacturing Process is disclosed. Also disclosed is an improved collet that includes a spindle, a center portion comprising several tabs and a collar. The disclosed collet is manufactured from a single piece of stock, and... | 11/21/2000 |
| 6079918 | Rotary power tool with hydraulically actuated chuck A rotary power tool has a remotely actuated chuck device. A hydraulic actuating system is incorporated in the power tool and is configured to move the chuck device between the gripping and release positions upon hydraulic fluid being supplied to at least ... | 06/27/2000 |
| 6079917 | Horizontal lever actuated chuck A rotary power tool is provided having a remotely actuated chuck device. The chuck includes an outer sleeve member that is axially movable relative to the drive spindle between a gripping and release position. A sleeve actuating device is provided having ... | 06/27/2000 |
| 6079916 | Rotary power tool with remotely actuated chuck A rotary power tool incorporates a remotely actuated chuck device. An engagement surface, such as a threaded or helical surface, is defined on an outer circumference of the chuck device over an axial length thereof. An actuator member is disposed concentr... | 06/27/2000 |
| 6045306 | Remote actuated chuck device for fixed base routers A rotary power tool is provided having a remotely actuated chuck device. The chuck is mounted onto the end of a drive spindle that extends from the casing of the power tool. The chuck includes an outer sleeve member that is axially movable relative to a d... | 04/04/2000 |
| 5997010 | Collet for a machine-tool chuck A collet is provided to grip a workpiece with a uniformly distributed gripping force. The collet includes a plurlity of circumferentally spaced-apart radial slots extending partly through the collet and at least one opening extending radially all the way ... | 12/07/1999 |
