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Class 279/137 - MORE THAN ONE SET OF GRIPPING MEANS


Subclass of Class 279 - Chucks or sockets
Definition: A device having a plurality of distinct means (a) for making
No. of patents: 87
Last issue date: 03/17/2009


1      
NumberTitleIssue Date
7503566Workpiece-gripping device for tool machines
A workpiece-gripping device for tool machines having a motorized chuck mounted on an operating head comprises a housing, a driving shaft journaled in the housing and provided with a shank engageable in the chuck, a locking member configured to engage a reaction memb...
03/17/2009
7415766Method and apparatus for processing/machining a vehicle wheel/rim preform
A method of processing a vehicle wheel/rim preform with a centersection/spider and an annular wall extending around a first rotational axis and having an annular surface defining axially spaced, annular inboard and outboard bead seats. The method includes the steps ...
08/26/2008
7347807Machine tool and method for changing tools on this machine tool
In the case of a machine tool which comprises at least one working spindle with a tool-holding fixture for tool holders carrying tools, and a tool changer with a gripper for the tool holders in order to transfer the tool holders between their magazine position, whic...
03/25/2008
7334970Fast change bit holder device
A method and apparatus for forming apertures and inserting fasteners in a workpiece is disclosed. One embodiment relates generally to a bit holder device for forming apertures and inserting fasteners into a workpiece. This embodiment comprises a tool bit, a hex hold...
02/26/2008
7328903Chuck
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
7258348Machining 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
7243922Drill chuck tool bit locator
A drill chuck having an adjustable depth stop to control an amount by which a tool bit, such as a drill or a screwdriver bit, is inserted into the drill chuck. The adjustable depth stop can include a spring, such as a conical spring, that can be coupled to a spindle...
07/17/2007
7243923Centering drill chuck
A drill includes a chuck which has a body member including a bore to receive a tool. Jaw members frictionally engage the tool to retain the tool in the chuck. A member is associated with the jaw members and the body to move the jaw members between clamping and non-c...
07/17/2007
7210212Bayonet 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
7204493Lathe chuck with stepped jaws
A chuck for mounting wheel castings having different diameters upon a wheel lathe for machining the casting to final shape is provided. The chuck includes stepped jaw inserts that cooperate with corresponding stepped part supports to securely mount the wheel casting...
04/17/2007
7165921Collet 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
7160065Chuck 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
7114728Rapid detached connecting device
A rapid detached connecting device comprises a rod body having an engaging portion; the rod body having a hollow body; an engaging block installed within the rod body; the engaging block having a stop block; a buckling unit inserted into the engaging portion for lim...
10/03/2006
7044477Chuck assembly with a cooling mechanism
A chuck assembly includes a housing formed with a hydraulic fluid inlet, a sleeve mounted in the housing and formed with an annular groove, a shaft mounted rotatably in the sleeve and formed with a fluid passage, a chuck unit mounted in the shaft, a piston subdividi...
05/16/2006
7040630Chuck 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
7040629Clamping device for elongated workpieces
An arrangement for clamping raw materials in a machine tool for machining elongated workpieces is provided. The arrangement comprises a supporting plate with at least one thoroughgoing opening and at least one clamping device arranged in front of one of the openings...
05/09/2006
6994000Fixture and locator device for supporting a rotatable member
There is provided a locator device and an associated fixture and method for supporting a rotatable member. The locator device has a base and a plurality of flanges extending from the base in an axial direction and arranged circumferentially to define an aperture for...
02/07/2006
6974287Tool clamping device
A tool clamping device for a tool having a shaft which is accurate to size and which can be inserted into the receiving bore of a tool support, is provided with a clamping device which can be screwed on a screw thread of the tool support while the tool has a ring, w...
12/13/2005
6969073Chuck assembly with a sealing member
A chuck assembly includes a housing formed with an hydraulic fluid inlet, a sleeve mounted in the housing and formed with an annular groove, a shaft mounted rotatably in the sleeve and formed with a first fluid passage, a chuck unit mounted in the shaft, a piston su...
11/29/2005
6966562Multiple mode chuck
A multi-mode quick-release chuck assembly is adapted for receiving tool bits having varying shank cross-sectional-sizes. The chuck assembly includes a hub having a longitudinal hub bore for receiving tool bits, a locking mechanism to retain the tool bits, and a slee...
11/22/2005
6944959Clamping arrangement for receiving a saw blade in multiple orientations
A saw blade clamping arrangement for a power tool includes a clamp support, a biasing member and an actuation member. The clamp support is interconnected with the drive shaft for reciprocating motion with the drive shaft relative to a housing of the power tool. The ...
09/20/2005
6923605Clamping device
A clamping device for releasibly fixing one first machine part containing a cone-shape drilled shank to a second machine part containing a female bore. The clamping device comprises an axially movable clamping sleeve inside the second machine part and several clampi...
08/02/2005
6918599Anti-deflection tooling
Anti-deflection tooling is provided for a pull back chuck. Equally spaced gussets are disposed between the riser body and the face plate of the chuck, to minimize or eliminate deflection of the face plate when a workpiece is clamped into the chuck. Adjustment device...
07/19/2005
6851678Drill 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
6840522Method and apparatus for repairing automobile wheel
A method and apparatus for repairing an automobile wheel is provided. The apparatus includes a rotatable center shaft assembly. An anchor anchors a wheel to the center shaft assembly. The center shaft assembly being rotatable so that anchoring the wheel rotates the ...
01/11/2005
6722668Chuck having quick change mechanism
A chuck includes a driver disposed on a chuck body and in engagement with the jaws so that at least one of rotation and axial movement of the driver with respect to the body opens or closes the jaws. A first detent is disposed in the body in communication with the j...
04/20/2004
6688610Chuck 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 directi...
02/10/2004
6619670Chuck unit for automatic machine tools, designed to perform both power tasks and finishing work
A chuck unit for automatic machine tools perform both power tasks and high speed finishing of pieces with lubricant/coolant fluid flowing through a chuck shaft. The chuck unit includes a support on which a first chuck for a tool is mounted and driven by a...
09/16/2003
6557860Collet 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
6554292Drill 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
6533291Chuck having quick change mechanism
A chuck includes a driver disposed on a chuck body and in engagement with the jaws so that at least one of rotation and axial movement of the driver with respect to the body opens or closes the jaws. A first detent is disposed in the body in communication...
03/18/2003
6506143Apparatus for finishing inside diameter of work
In a finishing apparatus, a plurality of works are retained at distances from each other in a direction of an X-axis. A single spindle is disposed on a table movable in the direction of the X-axis, the spindle has an axis parallel to an axis of each of bo...
01/14/2003
6497419Expanding pullback clamping module
A clamping module has a retractable drawbar and pivoting expansion members. The expansion members are pivotable from a first position having an effective diameter which is less than the minimum diameter of the workpiece hole through which the drawbar and ...
12/24/2002
6419430Holder for collar of workpiece or tool
A tool or workpiece having a mounting collar centered on an axis and for internally with an axially directed shoulder is mounted on a bolder having a drive sleeve also centered on an axis and fitted coaxially over the collar and a plurality of angularly s...
07/16/2002
6261035Chuck, bit, assembly thereof and methods of mounting
A chuck 40 includes a body 42 having a plurality of angularly spaced ribs 166, 168 and 170 formed in a forward cylindrical opening 48 thereof. A locking element 236 is movable within a passage 180 of the body 42, and is formed with a defined portion 242 w...
07/17/2001
6206382Equalizing power chuck
An equalizing power chuck includes a body, a plurality of work engaging jaws, and a plurality of rocker arms carrying the jaws. The rocker arms extend axially along an axis and have a mounting portion at one axial end for the jaws and an end portion at th...
03/27/2001
6193242Snap-in chuck assembly and snap-in tool
The elongate rod shaped non-impact and non percussion drilling tool comprises: a non-impact and non-percussion drilling tool or implement formation at an outer end of the shank, a portion of the shank having a polygonal cross section at a location on the ...
02/27/2001
6193241Tool drive system
The tool drive system for use with a chuck having a throughbore including an outer bore portion for receiving a tool or tool holder and an inner bore portion constructed to receive and be mounted on an outer end of a motor shaft of a power tool comprises:...
02/27/2001
6173971Plunger type rotary chuck assemblies
A plunger type rotary chuck assembly includes a main seat in which bearings are mounted for rotatably supporting a main shaft. An inner periphery of an axial hole of the main seat includes a number of fluid passages A number of piston chambers are provide...
01/16/2001
6135462Snap-in chuck
The chuck assembly comprises: a chuck body having an outer end portion, an outer periphery and a central axial bore extending at least part way therethrough; a nose collar mounted on the outer end portion of the chuck body; structure for mounting the chuc...
10/24/2000
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