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| Number | Title | Issue Date |
| 7204493 | Lathe 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 |
| 6953198 | Short pull-back chuck The present invention relates to a chuck for gripping workpieces having an outer chuck body rotatable about a chuck axis and defining a cavity. The chuck includes a collar, coupled to the outer chuck body, having a slot with a slot axis angled relative to said chuck... | 10/11/2005 |
| 6948720 | Computer controlled positioning table A computer controlled positioning table for use in automatically rotating a large diameter article into which an evenly spaced circle of bolt holes are to be drilled. The article to be drilled is centered and clamped onto a table top of the table and then the comput... | 09/27/2005 |
| 6944959 | Clamping 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 |
| 6916026 | Powered turntable with universal, self-adjusting chuck for holding auto wheels and the like for polishing A new and improved powered rotating turntable with a universal, self-adjusting chuck for holding auto wheels and the like for polishing, which includes a pneumatically-adjusted, self-centering metal chuck for gripping and holding specialty wheel rims of motor vehicl... | 07/12/2005 |
| 6170835 | Workpiece clamping apparatus A plurality of clamping motion elements with clamping jaws are moved out of an initial position towards a workpiece under a low operating pressure and caused to bear thereagainst. When all the clamping jaws bear uniformly against the workpiece, a full cla... | 01/09/2001 |
| 6123341 | Chuck assembly A chuck assembly which can chuck thin and brittle workpieces that differ widely in size with high accuracy and reliability without warping them. The chuck assembly includes a tubular chuck body having three first cylinders and a plurality of second cylind... | 09/26/2000 |
| 6116617 | Multiple-jaw chuck for a large workpiece A chuck has a chuck body, an actuating element limitedly axially displaceable in the body, a first set of guide pistons axially fixed in the actuating element, angularly spaced about the axis, and each forming a guide passage extending at a small acute an... | 09/12/2000 |
| 5895059 | High speed lathe chuck A lathe chuck assembly is configured for high-speed turning operations. The assembly includes a riser adapter and a yolk plate movably connected with respect to the riser adapter. First, second and third cam arms are connected to the yolk plate for graspi... | 04/20/1999 |
| 5820137 | Chuck apparatus for centering and locking aluminum wheels A chuck apparatus is operative to center and lock an aluminum wheel in a lathe having a machining centerline. The chuck includes a face plate adapted for rotation about the centerline, and first, second and third radial slide blocks slidably movable perpe... | 10/13/1998 |
| 5259630 | Device for clamping workpiece A device for clamping a workpiece has a base body rotatable together with a spindle of a machine tool. The base body has a hollow portion defining a space. A piston is mounted in the space so as to be movable back and forth by fluid supplied through passa... | 11/09/1993 |
| 5102152 | Chuck A chuck for clamping workpieces or tools is provided. The chuck has a chuck body and at least two clamping jaws are radially displaceably guided in the chuck body and are operable, via wedge surfaces, by a driven chuck piston that is axially displaceable.... | 04/07/1992 |
| 4838561 | Chuck, particularly for machine tools The chuck includes a structure supporting a table provided with first sliding seats and with second sliding seats which extend radially from the center of the table and respectively accommodate means for centering the workpiece and means for locking the w... | 06/13/1989 |
| 4836306 | Down hole drill chuck lock Disclosed is a means for retaining drill chucks for down hole drills including a circumferential groove cut in both the drill chuck and the wear sleeve, into which it is inserted, in complimentary mating orientation whereby the circumferential groove form... | 06/06/1989 |
| 4637620 | Two stage chuck A chuck assembly having jaws to grip an annular work-piece on its outer periphery while machining other surfaces including a face and bore and an expansible element to grip the bore surface of the annular work-piece while machining the outer surfaces and ... | 01/20/1987 |
| 4632407 | Inside/outside chucking device For selective outside or inside chucking of a workpiece on a lathe use is made of a base unit split to provide a set of three or more holding segments capable of being either contracted for grasping the exterior of a workpiece or spread for grasping the i... | 12/30/1986 |
| 4602797 | Tandem chuck A chuck for gripping long hollow workpieces has two independent sets of jaws actuated to the work-gripping and releasing positions by two independent puller plates. The puller plates are spring biased to shift the jaws to the work-gripping position. A sin... | 07/29/1986 |
| 4570949 | Chuck A workpiece chuck has a plurality of support blocks adapted to be mounted on the front face of the chuck body in circumferentially spaced relation and at various locations spaced radially different distances from the central axis of the chuck. Within each... | 02/18/1986 |
| 4558876 | Chuck A chuck selectively convertible between two different configurations for either externally gripping a workpiece while simultaneously pulling same down against stops or internally gripping a workpiece while simultaneously pulling same down against stops. T... | 12/17/1985 |
| 4443020 | Mechanical gripping device for rotating jaw chucks or collet chucks A mechanical gripping device for rotating jaw chucks or collet chucks. With the known gripping devices, rotationally symmetrical parts can be gripped in a rotating jaw chuck or collet chuck either only from the outside or only from the inside. The inventi... | 04/17/1984 |
| 4398733 | Jawed, lathe chuck In the embodiment shown, the chuck comprises a hub rotatably journalled in a jaw carrier, and the latter rotatably journalled in a body. The carrier pivotably mounts a plurality of jaws having camming surfaces, and drive pins upstanding from the hub and t... | 08/16/1983 |
| 4172399 | Method and apparatus for slitting rolled material Method and apparatus for slitting rolled material. The material is mounted adjacent to a slitting means which is oscillated substantially tangential to the surface of the rolled material being slit to improve the slitting action. Radially adjustable clamp... | 10/30/1979 |
| 4139207 | Double grip air chuck A fluid actuated chuck has two pairs of surfaces adaptable to engage a work piece with each of said pairs of surfaces being independently operable by the fluid. Such a chuck body includes means forming two pairs of surfaces carried and rotatably driven by... | 02/13/1979 |
| 3933347 | Air chuck and mandrel for roll slitting machine An improved roll slitting machine of the type used to slit wide rolls of material into narrow width rolls or ribbons includes an air chuck having gripping jaws which are actuated through multiple fluid logic paths to grip the roll of material for rotation... | 01/20/1976 |
