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| Number | Title | Issue Date |
| 7431308 | Tool-holding chuck for equipping a rotating machine, provided with sequenced radial and axial locking means Sliding in the body of the chuck are jaws whose external thread is engaged with the internal thread of a nut mounted to rotate on the body. The nut is rotated by a sleeve, allowing the jaws to move. The chuck includes radial locking device which can be actuated by a... | 10/07/2008 |
| 7389993 | Lockable hammer-drill chuck A drill chuck has an externally toothed body, a plurality of jaws, and a tightening ring rotatable on the body in tightening and loosening directions. Screwthreads between the tightening ring and the jaws move the jaws radially. A pawl engageable with the teeth is a... | 06/24/2008 |
| 7360770 | Keyless chuck with automatic and manual locking A keyless chuck having both an automatic locking feature and a manual locking feature. The automatic locking feature provides for automatic locking of the chuck in a tightened state when a predetermined tightening torque has been exceeded. The chuck can be utilized ... | 04/22/2008 |
| 7296804 | Hand-held instrument holder for surgical use A surgical instrument holder has a shank having a coupling end, a handle attached to an opposite end of the shank, a coupling device, and a locking mechanism. The coupling end has an interface thereon for receiving an instrument. The locking mechanism has an annular... | 11/20/2007 |
| 7296803 | Chuck The present invention relates to a self-tightened reverse locking chuck, comprising: a body member, a nut, jaws, a bearing, a drive sleeve, a front sleeve, an annular drive member, a movable ratchet wheel, a reverse locking ratchet wheel, a detent lock ring, a contr... | 11/20/2007 |
| 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 |
| 7249770 | Locking drill chuck A chuck for use with a manual or powered driver having a chuck body, jaws, a nut, a front sleeve, a rear sleeve, and a nut jacket is provided, wherein the jaws are respectively and operatively inserted into a plurality of angled bores uniformly distributed around th... | 07/31/2007 |
| 7216873 | Drill chuck A drill chuck has a chuck body centered on and axis, and a tightening element surrounding the body and rotatable thereon about the axis. The tightening element has a front sleeve formed with jaw-holding guides and a rear sleeve releasably coupled with the front slee... | 05/15/2007 |
| 7185895 | Chuck with locking system This is a chuck for equipping a rotary machine, comprising a body intended to be fixed to a drive shaft of the machine, in which there are mounted several jaws which slide in bores converging forward and which each have an outwardly facing threaded part, a sleeve be... | 03/06/2007 |
| 7185896 | Chuck with locking system A chuck for equipping a rotary machine includes a body intended to be fixed to a drive shaft of the machine, in which there are mounted several jaws which slide in bores converging forward and which each have an outwardly facing threaded part, a sleeve being pivotab... | 03/06/2007 |
| 7178216 | Keyless chuck and associated method A keyless chuck is provided, comprising a generally cylindrical body having a forward and rearward portion with respect to an axis, the forward portion including a radially outwardly projecting portion of the body. The body further includes a plurality of guides ext... | 02/20/2007 |
| 7160065 | Chuck with quick change A chuck includes a generally cylindrical body and a plurality of jaws reciprocally disposed in the body in communication with a central bore in the body. A first detent extends radially into the central bore and is releasable in a radially outward direction. Upon in... | 01/09/2007 |
| 7156402 | Quick-tighten drill chuck A drill chuck has a chuck body centered on and rotatable about an axis and having a screwthread, a main sleeve axially fixed but rotatable about the axis on the body and formed centered on the axis with a plurality of angled forwardly open guides, and respective cla... | 01/02/2007 |
| 7125021 | Self-locking drill chuck A self-locking drill chuck device includes a body, a nut, jaws, a front sleeve, a rear sleeve, a nut jacket and a rolling member. Three jaws are respectively and operatively inserted into three angled bores uniformly distributed around the body, the threads of the n... | 10/24/2006 |
| 7044480 | Non-impact keyless chuck A non-impact keyless chuck suitable for use with manual or powered drivers is disclosed. The chuck comprises a body which carries a rotatable split nut having a relatively fine thread and a plurality of slidable jaws, which may be identical, driven by the rotatable ... | 05/16/2006 |
| 7040630 | Chuck with quick change A chuck includes a generally cylindrical body and a plurality of jaws reciprocally disposed in the body in communication with a central bore in the body. A first detent extends radially into the central bore and is releasable in a radially outward direction. Upon in... | 05/09/2006 |
| 6959931 | Keyless chuck and associated method A keyless chuck is provided, comprising a generally cylindrical body having a forward and rearward portion with respect to an axis, the forward portion including a radially outwardly projecting portion of the body. The body further includes a plurality of guides ext... | 11/01/2005 |
| 6902171 | Chuck device To provide a chuck device for preventing the loosening of the fastening condition, a plurality of claws inserted into a hole provided at an end of a body are opened, closed and slid by the rotation of a rotary sleeve and a tool is clamped by means of the claws. A co... | 06/07/2005 |
| 6874790 | Device for rotating disc-shaped objects A device for rotation of disc-shaped elements of different diameter, such as matrices for manufacturing audio and video discs. The device comprises a rotatable chuck (10) in which three arms (20) distributed evenly in the peripheral direction are pivot... | 04/05/2005 |
| 6843485 | Chuck device A chuck device in which a plurality of claws provided at an end of a body are opened, closed and slid by the rotation of a rotary sleeve and a tool is clamped by means of the claws. An annular ratchet wheel is provided on the body. An annular nut member to be engage... | 01/18/2005 |
| 6824141 | Chuck device A chuck is provided having a body, oblique guides converging toward a forward portion of the body, and a groove around the body. A slidable jaw within each guide includes outer threads. A rotatable mechanism engaging the groove includes threads for engaging the jaw ... | 11/30/2004 |
| 6659474 | Chuck device A chuck device is provide with an annular ratchet tooth wheel in a body, an annular nut member that engages with claws nd rotates together with a rotary sleeve, and a retainer spring member for engaging the ratchet tooth wheel. The retainer spring member ... | 12/09/2003 |
| 6581942 | Drill chuck A drill chuck has a body formed with an axially forwardly open tool-receiving recess and with a plurality of angled guides opening axially forward in the recess. Respective jaws axially and radially displaceable in the guides are each formed with a row of... | 06/24/2003 |
| 6554292 | Drill chuck for smooth- and hex-shank bits A drill chuck has a body formed with an axially forwardly open tool recess and holding a plurality of tool-gripping jaws. A socket formed with an axially forwardly open polygonal-section seat is nonrotatable in a seat of the chuck body and axially displac... | 04/29/2003 |
| 6554289 | Anti-slip type electric drill chuck An anti-slip type electric drill chuck mainly includes a body which is obliquely provided with three pawls for clamping a drill head. The outer surface of one end of the three pawls is provided with a threaded surface for engaging a tapered threaded hole ... | 04/29/2003 |
| 6550785 | Lockable hammer-drill chuck A drill chuck has a chuck body rotatable about a chuck axis and formed centered on the axis with an axially forwardly open tool receiving hole, an array of axially extending guides opening axially forward into the hole, a rear axially forwardly directed s... | 04/22/2003 |
| 6540236 | Chuck A chuck includes a generally cylindrical body having a nose section and a tail section. A plurality of jaws are movably disposed with respect to the body to and away from the chuck's axial bore. A generally cylindrical sleeve is in driving communication w... | 04/01/2003 |
| 6517088 | Lockable drill chuck A lockable drill chuck has a body centered on and rotatable about an axis and formed with a plurality of angled guides opening axially forward at a front chuck end, respective jaws axially and radially displaceable in the guides and each formed with a row... | 02/11/2003 |
| 6513604 | Adjustable spindle lock A hammer is provided which enables the orientation of a tool or bit mounted within a spindle of the hammer to be rotated to the required orientation. The hammer comprises a housing part having an aperture therein in which a spindle that is mounted so that... | 02/04/2003 |
| 6502836 | Chuck with spring leg dust cover A chuck includes a generally cylindrical body having a nose section and a tail section. The tail section is configured to rotate with the drive shaft, and the nose section has an axial bore formed therein. A plurality of jaws are movably disposed with res... | 01/07/2003 |
| 6435521 | Locking chuck A chuck for use with a manual or powered driver having a housing and a rotatable drive shaft extending therefrom is provided. The chuck includes a generally cylindrical body member having a nose section and a tail section. Each of a plurality of jaws is s... | 08/20/2002 |
| 6428018 | Chuck A chuck includes a generally cylindrical body having a nose section and a tail section. A plurality of jaws are movably disposed with respect to the body to and away from the chuck's axial bore. A generally cylindrical sleeve is in driving communication w... | 08/06/2002 |
| 6409181 | Combination type electric drill chuck structure A combination type electric drill chuck structure is mainly mounted on an electric drill. The chuck includes a drive body having head and tail ends, the middle thereof being provided with multiple inclined grooves for receiving multiple clamp pawls; a fix... | 06/25/2002 |
| 6402160 | Chuck with improved bearing A chuck includes a generally cylindrical body, a plurality of jaws and a driving disk. A bearing includes a first race, a second race and a plurality of bearing elements disposed between the first race and the second race. The first race defines a plurali... | 06/11/2002 |
| 6398226 | Chuck with one-way lock A chuck includes a generally elongated body having a tail section configured to rotate with the drive shaft and a nose section having an axial bore formed therein. A plurality of jaws are movably disposed with respect to the body to and away from the axia... | 06/04/2002 |
| 6390481 | Locking chuck A chuck includes a generally cylindrical body and a plurality of jaws moveably disposed with respect to the body in communication with the body's axial bore. A generally cylindrical sleeve is rotatably mounted about the body in operative communication wit... | 05/21/2002 |
| 6382636 | Drill/driver chuck A drill/driver chuck mechanism has a cylindrical member 2 with a central axial bore 4. A plurality of further bores 6 are slanted with respect to the central axial bore 4. Jaws 8 each associated with a bore 6 are moveable via a jaw actuator 10. A jaw lock... | 05/07/2002 |
| 6341783 | Drill chuck A drill chuck has a body having a front part and a rear part, and formed with a plurality of angled guides opening axially forward at the front part. Respective jaws axially and radially displaceable in the guides are each formed with a row of teeth engag... | 01/29/2002 |
| 6302408 | Tool system that can be coupled to a lathe drive shaft The invention relates to a tool system that can be coupled to the drive shaft of a lathe. Said system comprises a tool holding fixture which can be connected to the lathe, and a took which is stored in a polygonal recess in the tool holding fixture so as ... | 10/16/2001 |
| 6302407 | Chuck structure with locking and positioning functions A chuck structure with locking and positioning functions includes a cylindrical body having head and tail ends, the middle thereof being provided with a plurality of inclined channels; a plurality of clamp pawls received in the channels; a limiting ring p... | 10/16/2001 |
