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| Number | Title | Issue Date |
| 7891918 | Drill A drill has a housing, a drivable drill spindle rotatably mounted in the housing, a chuck body coaxially connected and rotationally fixed to the drill spindle, a tightening sleeve rotatable on and relative to the chuck body, and jaws moveable relative to the chuck b... | 02/22/2011 |
| 7845650 | Drill chuck A drill chuck has a body formed with a forwardly open threaded bore and a holder sleeve rotatable on the body and formed with a plurality of forwardly open angled guides angularly equispaced about the axis. Respective jaws are shiftable radially along the guides bet... | 12/07/2010 |
| 7850404 | Drill chuck A drill chuck has a rotatable chuck body, a tightening sleeve axially fixed but rotatable on the chuck body, a plurality of jaws on the body and radially displaceable between inner and outer end positions, and a screwthread formation for radially displacing the jaws... | 12/14/2010 |
| 7841601 | Self-tightening drill chuck A drill chuck has a chuck body centered on and rotatable about an axis, a jaw holder rotatable on the body and formed with a plurality of angularly spaced guides, a sleeve surrounding the holder and body, and jaws in the guides between the sleeve and the body. Inter... | 11/30/2010 |
| 7832965 | Drill A drill has a housing formed with an outlet hole, a fan expelling an air stream from the outlet hole, a drive spindle projecting from the housing adjacent the outlet and centered on and rotatable about an axis, and a chuck body carried on the housing. A tightening s... | 11/16/2010 |
| 7726917 | Power drill A drill chuck has a chuck body having a forwardly open large-diameter threaded bore centered on an axis and a rearwardly open bore also centered on the axis and of small diameter. A power-unit spindle end is threaded into the small-diameter bore and projects axially... | 06/01/2010 |
| 7726663 | Self-tightening drill chuck A drill chuck has a chuck body, a holder body, and a front sleeve surrounding the bodies, with jaws between them. A ring of teeth on one of the bodies can be engaged by a pawl angularly fixed on the other of the bodies. When engaged, the pawl and the array of teeth ... | 06/01/2010 |
| 7644931 | Drill chuck with adjustment-sleeve lock A chuck has a drive shaft, a generally rotatable housing part adjacent the drive shaft, and a chuck body fixed to and rotatable with the shaft and formed with a plurality of guides holding respective jaws shiftable between closely spaced inner positions and widely s... | 01/12/2010 |
| 7503565 | Lockable drill chuck A drill chuck has a chuck body formed with an annular row of radially outwardly directed teeth. A sleeve axially fixed but rotatable about the chuck axis on the chuck body has a plurality of angularly spaced guides holding respective radially displaceable jaws. A sc... | 03/17/2009 |
| D580727 | Drill chuck | 11/18/2008 |
| 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 |
| D567268 | Drill chuck | 04/22/2008 |
| 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 |
| 7201547 | Opening actuator for collet chuck A chuck actuator has a hollow housing having a chamber and having a front end and a rear end. A ring in the chamber forms with the front end thereof a front compartment and a piston in the chamber between the ring and the rear end forms an intermediate compartment w... | 04/10/2007 |
| 7165921 | Collet chuck A holder for a collar having an axially forwardly directed shoulder and axially rearward thereof a radially outwardly directed centering surface has a drive sleeve fitted over the collar and a plurality of angularly spaced jaws each formed with an axially rearwardly... | 01/23/2007 |
| 6921092 | Drill chuck A drill chuck has a chuck body centered on and adapt d to be rotated about a longitudinal axis and unitarily formed with a plurality of forwardly open angled guides angularly spaced about the axis and with a rim, respective jaws displaceable along the guides in the ... | 07/26/2005 |
| 6902172 | Drill chuck with cushioned tightening sleeve A drill chuck has a chuck body centered on a longitudinal axis and formed with a plurality of forwardly open angled guides spaced about the axis. Respective jaws displaceable along the guides in the chuck body are each formed with a row of teeth. A tightening sleeve... | 06/07/2005 |
| 6889986 | Drill chuck with cushioned tightening ring A drill chuck has a chuck body formed with a plurality of forwardly open angled guide passages and with a radially open groove having an axially rearwardly directed front face and an axially forwardly directed rear face. Respective jaws displaceable in the passages ... | 05/10/2005 |
| 6883809 | Drill chuck A drill chuck has according to the invention a chuck body centered on and rotatable about an axis and having a rear end formed with an axially forwardly facing shoulder, a plurality of jaws radially displaceable in the body between a closely spaced tool-gripping pos... | 04/26/2005 |
| 6883808 | Drill-chuck jaw with hard-metal inserts A drill-chuck jaw hag an elongated metal body formed with a toothed back face and an opposite front face. The body is generally symmetrical to a longitudinal plane bisecting the back and front faces. A pair of hard-metal insert parts fixed to the front face are each... | 04/26/2005 |
| 6880831 | Power-actuated lathe chuck A chuck has a chuck body rotatable about a chuck axis, a plurality of holders angularly spaced about and radially displaceable on the body and each formed with an outwardly flared seat centered on a respective seat axis, and an actuator for radially displacing the h... | 04/19/2005 |
| 6860488 | Drill chuck with front-end shield A drill chuck has a chuck body rotatable about a chuck axis and having a rear end adapted to fit with a drive spindle and a front end formed with a tool recess. A plurality of jaws angularly spaced on the body about the axis and exposed in the tool recess are radial... | 03/01/2005 |
| 6851678 | Drill for smooth- and hex-shank bits A drill has a drive unit having a spindle rotatable about an axis and having an axially forwardly directed front end formed centered on the axis with an axially forwardly open polygonal-section socket dimensioned to fit with a standard-size bit shank, a chuck body m... | 02/08/2005 |
| 6837499 | Ball-bolt chuck A chuck has a chuck body rotatable about a main axis and a plate displaceable axially on the body between an outer position and an inner position. Springs urge the plate into the outer position. A locking element on the body can move between a blocking position prev... | 01/04/2005 |
| 6726222 | Drill chuck for smooth- and hex-shank bits A drill chuck has a chuck body centered on an axis and forming an axially forwardly open bit-receiving recess, an axially forwardly open polygonal-section seat at a base of the recess, and a plurality of jaws spaced angularly around the seat. The jaws can be displac... | 04/27/2004 |
| 6648563 | Quick-change drill chuck A drive spindle is formed with an axially forwardly open socket of noncircular section and with at least one radially throughgoing passage open radially inward into the socket. A chuck body has a stem of noncircular section complementary to that of the so... | 11/18/2003 |
| 6595527 | Chip-clearing drill chuck A drill has a drive-unit housing having an end wall, a drive-unit spindle projecting along an axis from the wall, and a chuck body fixed to the spindle, formed with an axially forwardly open tool recess, and formed with a plurality of angled guide passage... | 07/22/2003 |
| 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 |
| 6575478 | Drill chuck with cushioned full-open position A chuck body is formed with angled guides holding respective jaws. A tightening ring rotatable about the axis on the chuck body has a screwthread meshing with toothed edges of the jaws so that rotation of the ring in one direction moves the jaws axially f... | 06/10/2003 |
| 6568888 | Collet chuck A collet chuck for holding a mounting collar of an object--tool or workpiece--to be rotated has a chuck body centered on and rotatable about an axis and formed with a forwardly open socket shaped to receive the collar. A plurality of jaws in the socket ha... | 05/27/2003 |
| 6568889 | Collet chuck A collet chuck for holding a mounting collar of an object to be rotated has a chuck body centered on and rotatable about an axis and formed with an axially forwardly open socket shaped to receive the collar. A plurality of jaws in the socket have front en... | 05/27/2003 |
| 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 |
| 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 |
| 6536782 | Quick-release drill chuck A chuck has a body centered on an axis and formed with a rearwardly open bore adapted to fit with a drive spindle. Respective jaws are displaceable in angled guides of the body and a ring rotatable on the body has an internal screwthread meshing with the ... | 03/25/2003 |
| 6527279 | Integrated powered lathe chuck An integrated power chuck assembly for a lathe has a hollow lathe spindle of a diameter sufficient to accommodate at least the actuating cylinder and a multiple medium feed device and preferably at least part of the stroke-control device which can include... | 03/04/2003 |
| 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 |
| 6505533 | Lathe steady rest A lathe steady rest has a frame adjacent an axis about which a lathe rotates a workpiece, a pair of arms pivotal on the frame about arm axes parallel to the workpiece axis and having outer ends radially displaceable relative to the workpiece axis, and a s... | 01/14/2003 |
| 6499746 | Lever-action chuck A chuck has a chuck body adapted to be rotated about a chuck axis and formed with a plurality of axially forwardly open passages each having a pair of angularly confronting side faces, respective guides pivotal in the passages about respective guide axes ... | 12/31/2002 |
| 6485032 | Lever-type lathe chuck with replaceable jaw inserts A chuck has a chuck body adapted to be rotated about a chuck axis and a plurality of elongated jaw arms angularly spaced about the axis, pivotal in the chuck body about respective guide axes extending secantally of the chuck axis, and axially slidable in ... | 11/26/2002 |
| 6464235 | Lathe chuck with jaw latches A lathe chuck has a chuck body centered on and rotatable about a main axis and formed with a plurality of radially extending jaw-guide grooves and, transverse to the grooves, with respective guide passages each in turn formed with an abutment. Respective ... | 10/15/2002 |
