| Patent Number |
Title Of Patent |
Date Issued |
| 5624125 |
Keyless power-drill chuck assembly |
April 29, 1997 |
| A drill assembly has a drill housing, a spindle projecting from the housing along an axis and rotatable about the axis, a chuck body fixed on the spindle, jaws on the chuck body, and a rotatable tightening body. The jaws move radially together on rotation of the tightening body in the fo |
| 5580197 |
Pneumatically self-clearing chuck |
December 3, 1996 |
| The chuck is used with a drill drive unit having a spindle extending along and rotatable about an axis. The chuck has a chuck body fixed on the spindle and formed with an axially forwardly open tool recess on the axis, a plurality of angularly spaced and angled guide holes opening into t |
| 5499829 |
Lockable drill chuck |
March 19, 1996 |
| A lockable drill chuck has a chuck body and an adjustment body rotatable on the chuck body relative to an axis and fixed axially thereon. Respective jaws in guides of one of the bodies have toothed edges meshing with a screwthread of the other body so that rotation of the adjustment body |
| 5464230 |
Lockable drill chuck |
November 7, 1995 |
| A drill chuck has a first body rotatable about an axis and formed with a plurality of angularly spaced angled guides, respective jaws slidable in the guides, and a second body axially fixed but rotatable on the first body. Interengaging screwthread formations on the second body and engag |
| 5435578 |
Lockable self-tightening hammer-drill chuck |
July 25, 1995 |
| A self-tightening chuck has a chuck body centered on an axis and adapted to be rotated thereabout, a plurality of jaws radially displaceable on the body, and an adjustment sleeve rotatable on the body, formed with radially inwardly directed teeth, and engaged with the jaws such that rota |
| 5378002 |
Self-tightening drill chuck |
January 3, 1995 |
| A drill chuck has an axially centered chuck body, an adjustment body rotatable but axially fixed on the chuck body, and jaws radially displaceable on the chuck body. The adjustment body is formed with a screwthread meshing with teeth of the jaws so that relative rotation of the bodie |
| 5375858 |
Lockable self-tightening hammer-drill chuck |
December 27, 1994 |
| A self-tightening hammer-drill chuck has a chuck body centered on and rotatable about an axis, a guide rotatable about the axis on the body, and a plurality of jaws radially displaceable on the guide and engaged with a screwthread of the body so that rotation of the guide in a forward |
| 5375857 |
Keyless lockable hammer-drill chuck |
December 27, 1994 |
| A drill chuck has a body centered on and rotatable about an axis, a plurality of jaws radially displaceable on the body, and an adjustment ring rotatable but not axially displaceable on the body and having a screwthread engaging the jaws for radially displacing the jaws when the adju |
| 5286041 |
Drill chuck |
February 15, 1994 |
| A drill chuck for use with a tool having a shaft has a chuck body centered on and rotatable about an axis and an adjustment body centered on the axis, rotatable about the axis on the chuck body, and axially fixed on the chuck body. One of the bodies is formed with a plurality of angularl |
| 5236206 |
Drill chuck |
August 17, 1993 |
| A drill chuck has a body centered on and rotatable about an axis, a plurality of jaws radially displaceable on the body, an adjustment sleeve rotatable but not axially displaceable on the body and engaging the jaws for radially displacing same, and a locking ring rotatable on the body at |
| 5172617 |
Lathe chuck |
December 22, 1992 |
| A power chuck has a stationary housing, a chuck spindle rotatable in the housing about a chuck axis, a plurality of jaws carried on the chuck body movable radially toward and away from one another, an actuator shaft movable axially relative to the body, a jaw actuator connected between t |
| 5167175 |
Lathe chuck |
December 1, 1992 |
| A power chuck has a stationary housing, a chuck spindle rotatable in the housing about a chuck axis, a plurality of jaws carried on the chuck body movable radially toward and away from one another, an actuator shaft movable axially relative to the body, and a jaw actuator connected betwe |
| 5158306 |
Drill chuck |
October 27, 1992 |
| A drill chuck according to this invention has a chuck body centered on and normally rotatable about a chuck axis and formed centered on the axis with a plurality of angled guide passages each having an axially forwardly open front end and an axially rearwardly and radially outwardly open |
| 5145193 |
Lockable drill chuck |
September 8, 1992 |
| A drill chuck has a chuck body centered on and adapted to be rotated about a longitudinal axis and formed with a plurality of forwardly open angled guides angularly spaced about the axis, respective jaws displaceable along the guides in the chuck body and each formed with a row of teeth, |
| 5145192 |
Lockable drill chuck |
September 8, 1992 |
| A drill chuck has a chuck body centered on and adapted to be rotated about a longitudinal axis and unitarily formed with a plurality of forwardly open angled guides angularly spaced about the axis and an axially forwardly directed shoulder. Respective jaws displaceable along the guides |
| 5054796 |
Self-tightening hammer-drill chuck |
October 8, 1991 |
| A hammer-drill chuck has a chuck body, a sleeve rotatable but axially nondisplaceable on the chuck body, and a plurality of jaws engaged between the sleeve and chuck body. A locking-ring body is axially displaceable between a rear unlocked position and a front locking position on the chu |
| 5005453 |
Drive for relatively axially shifting chuck parts |
April 9, 1991 |
| A machine tool has a housing normally rotated about a housing axis and a part that is axially movable relative to the housing to adjust the tool. An adjustment apparatus for the tool has a drive having a rotary drive output, a differential transmission having a rotary input connected to |
| 4995303 |
Sensor-equipped actuator for power chuck |
February 26, 1991 |
| A power actuator has a hollow cylinder housing generally centered on an axis, a piston axially displaceable but non-rotatable in the housing and defining therein a pair of axially opposite pressurizable compartments, and a piston stem centered on the axis, fixed to the piston, extending |
| 4991860 |
Drill chuck |
February 12, 1991 |
| 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 for moving the clamp jaws which i |
| 4991859 |
Self-tightening drill chuck |
February 12, 1991 |
| A self-tightening drill chuck has a chuck body adapted to be mounted on a drill spindle for rotation about an axis and a tightening sleeve surrounding the body and formed with a substantially frustoconical seat centered on the axis and having a front end turned away from the chuck bo |
| 4966375 |
Lathe chuck for offecenter workpiece rotation |
October 30, 1990 |
| A chuck has a chuck body generally centered on and rotatable about a rotation axis, a head displaceable on the chuck body generally perpendicular to the rotation axis, and three jaws angularly generally equispaced on the head about a clamp axis offset from and substantially parallel |
| 4955623 |
Self-tightening and lockable hammer-drill chuck |
September 11, 1990 |
| A drill chuck has a chuck body, a sleeve rotatable but axially nondisplaceable on the chuck body, and a plurality of jaws engaged between the sleeve and chuck body. Angled guides and a screwthread formed on the body, sleeve, and jaws radially displace the jaws toward each other on re |
| 4945819 |
Clamping apparatus for the rotary spindle of a machine tool |
August 7, 1990 |
| The chuck or collet actuating apparatus for a machine tool comprises a rotating clamping cylinder, an axially slidable clamping piston rotating with the clamping cylinder and a coaxial cylindrical projecting portion in the clamping cylinder. The projecting portion carries a thread, on wh |
| 4932674 |
Lathe chuck with chuck-clamping monitor |
June 12, 1990 |
| An operation control device is provided for a chuck by which the rotary drive for the chuck is disengaged when the clamping motion leading to clamping of the workpiece in the chuck has not been provided or is not sufficient. The clamp jaws of the chuck are adjustable by a drive member |
| 4932643 |
Machinist's vise |
June 12, 1990 |
| A vise has a housing block formed with a guide defining a longitudinal direction, a fixed jaw secured to the block, a movable jaw displaceable in the direction in the guide relative to the fixed jaw, and a spindle extending in the direction between the jaws along a spindle axis. A su |
| 4880246 |
Self-tightening drill chuck |
November 14, 1989 |
| A self-tightening drill chuck has a chuck body adapted to be mounted on a drill spindle for rotation about an axis and formed with substantially cylindrical front and a rear outer surfaces both centered on the axis and axially offset from each other and with an outwardly open groove betw |
| 4877259 |
Power-driven chuck |
October 31, 1989 |
| The clamp jaws radially adjustable by a drive member each comprise a jaw base guided in the chuck body and a mounted jaw member replacably attached with it as well as at least one connecting pin which is mounted pivotable about the pin axis in the jaw base. According to rotary position t |
| 4872691 |
Lathe chuck |
October 10, 1989 |
| In a lathe chuck, the jaws consist of two jaw segments, couplable with each other in different relative positions by means of a coupling member operatively linked to an actuating member by way of a positioning assembly. A latching assembly is provided for fixing in place the forward |
| 4844482 |
Drill chuck |
July 4, 1989 |
| The drill chuck has an adapter shaft which is held in the drill chuck nonrotatably with axial motion play and formed for receipt in a tool holder of a hammer drill machine. The hammer action of the adapter shaft is transmittable to the end of a drill held between centrally adjustable |
| 4836563 |
Selftightening drill chuck |
June 6, 1989 |
| A selftightening drill chuck has a chuck body having a chuck thread, a chuck sleeve, a plurality of clamp jaws which are guided slidably in the chuck sleeve inclined to the chuck axis and a locking ring on the chuck body which is rotatable between two rotational end positions and is |
| 4819319 |
Power chuck retainer for rotating spindle |
April 11, 1989 |
| In the clamping device a clamping head rigidly attached to the rotating spindle is provided between the rotating spindle and the tool holder which has a plurality of adjustable clamping pieces for holding the tool holder on the clamping head. A clamping rod penetrating the clamping head |
| 4773657 |
Drill apparatus |
September 27, 1988 |
| The drill chuck body is connected to a drill spindle, and chuck jaws forming a retention for the drill tool can be adjusted by turning a control ring. A lock sleeve serves to secure the control ring whereby the lock sleeve, in the direction of shifting, is maintained against the cont |
| 4771933 |
Three-jaw chuck for a lathe |
September 20, 1988 |
| The chuck clamps a workpiece on a clamping axis eccentric to the rotation axis of the chuck. The spacing between the rotation axis and the clamping axis parallel to it can be varied along a radial axis spacing line going through the rotation axis. One jaw has a clamping surface which int |
| 4738187 |
Self-lubricating hydraulic actuator for power chuck |
April 19, 1988 |
| A chuck actuator has a cylinder extending along an axis and having an axially extending stem whose outer surface is formed with a pair of central radially outwardly open and axially spaced intake ports, a piston axially displaceable in the cylinder and forming therein two compartments |
| 4730837 |
Jaw chuck for workpieces having a plurality of processing axes |
March 15, 1988 |
| The chuck has a mounting body with an associated chuck assembly and a pivot device. For clamping of a workpiece at least one chucking jaw can adjustably be swung away from its chuck assembly, and the clamped workpiece, together with the chucking jaws can be turned about a pivot axis |
| 4703942 |
Hammer drill |
November 3, 1987 |
| A drill chuck can be operated with or without an axial displacement mode with respect to the drill spindle. For operation without the axial displacement mode, lock formations can be moved by way of a coupling ring to engage with a seat portion of a contact sleeve which is fixed to the |
| 4703941 |
Hammer drill chuck assembly |
November 3, 1987 |
| The percussion drill apparatus is comprised of a drill spindle which powers the chuck, and the connection for rotation of the drill chuck to the drill spindle is by way of at least one coupling element which is secured in retainers respectively provided in the drill spindle and the chuck |
| 4702485 |
Percussion drill and chuck arrangement therefor |
October 27, 1987 |
| A drill chuck can be driven by and rotated with a drill spindle. The drill chuck has an axial passage through which the impact effort of a central anvil shaft can be transferred to the drill. The drill can be held in chuck jaws, the movement of which can be controlled by a control sleeve |
| 4700956 |
Lockable and self-tightening hammer-drill chuck |
October 20, 1987 |
| A hammer drill chuck according to the invention has a chuck body centered on an axis and formed with an axially forwardly open hole normally receiving a drill bit, respective jaws displaceable in the body and having front ends radially engageable with a bit in the hole, and an adjustment |
| 4695066 |
Chip-shedding hammer-drill chuck |
September 22, 1987 |
| A chuck has a chuck body having an outer surface and formed with a forwardly open hole defining an axis and normally receiving a drill bit, a plurality of angularly generally equispaced guide bores extending at an acute angle to the axis and having inner front ends opening in the hole |
| 4690416 |
Power chuck |
September 1, 1987 |
| The jaws of the chuck include a base jaw and a separate, releasable mounting jaw. These two jaw components are connected by at least one shaft which is guided with male-type screw threads in its one end in female-type screw threads of the base jaw. The other end has a lock head which has |
| 4669741 |
Power-operated jaw chuck for eccentrically supporting workpieces in a machine tool |
June 2, 1987 |
| The power chuck is particularly intended for holding crankshafts. The chuck has a base, a head, and clamping jaws. The head is radially guided with respect to a clamping axis which extends parallel to an axis of rotation. The clamping jaws are connected to a drive piston by way of axiall |
| 4664568 |
Drill chuck for grooved and ungrooved drill-bit shanks |
May 12, 1987 |
| A chuck centered on an axis and having a plurality of jaws each displaceable radially of the chuck axis is usable in combination with a drill bit having a shank formed with respective grooves each having axially extending and angularly directed flank surfaces engageable with the jaws |
| 4658912 |
Percussion drill |
April 21, 1987 |
| A percussion drill has a percussion drill spindle and a drill chuck member which is turned and axially driven by the spindle. The drill chuck member has an axial passage through which the respective percussion action can be transferred from the spindle to that end of the drill which is h |
| 4645387 |
Drill chuck for tapping and drilling |
February 24, 1987 |
| A chuck has a rear chuck part centered on a rear axis and adapted to be secured to the spindle of a drill for rotation about the rear axis, a front chuck part centered on a front axis, and a universal joint interconnecting the two parts for joint rotation about the rear axis with the |
| 4627628 |
Hammer drill chuck |
December 9, 1986 |
| A drill chuck for a hammer drill with a plurality of clamp jaws fed in feed channels to engage a drill in a tool holder, the clamp jaws being adjustable by means of a support ring, the support ring bearing a restraining casing having teeth thereon which can engage gearing in the supp |
| 4627627 |
Percussion or impact drill chuck |
December 9, 1986 |
| A drill chuck is secured on a drill spindle so as to be actuated thereby. The drill chuck has an axial passage through which the impact effect of a central anvil shaft is transferred to the end of the drill held in the drill chuck. The drill chuck can be connected to the drill spindle by |
| 4627626 |
Chuck for a hammer or rotary impact drill |
December 9, 1986 |
| The chuck for holding a drill bit by its drill bit shaft comprises a chuck body connected to a drive shaft, a mounting opening in the chuck body in which the drill bit shaft is held coaxial with the chuck axis, a plurality of clamp jaws guided in the chuck body so as to be centrally adva |
| 4627185 |
Safety hammer lock for a hand weapon |
December 9, 1986 |
| A safety mechanism for a revolver having a breech lock arranged at the drum on a breech lock shaft and able rotate to enable loading of the respective cartridge chamber. When the breech lock is swung out, a detent latch is disengaged from the drum catch by way of the breech lock shaft an |
| 4623155 |
Drill chuck with radial jaws |
November 18, 1986 |
| A drill chuck for a hammer drill apparatus or the like having a plurality of clamp jaws advanceable to and retractable from a chuck drill axis so as to be able to grasp and hold a drill, wherein each of the clamp jaws is advanced into and retracted from a chuck opening in the chuck in a |
