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| Number | Title | Issue Date |
| 7862050 | Centering process in chucking work and apparatus therefor A process and apparatus for centering accurately and speedy a workpiece on a magnet chuck mounted on a work spindle. A pair of action pads spaced away from one another comes into engagement with the workpiece attracted to the work spindle, thereby performing the cen... | 01/04/2011 |
| 7424776 | Method for machining a workpiece A method for machining a workpiece in which a machine tool comprising a first and a second chuck devices is employed to machine the workpiece, the machine tool being used in which the first and the second chuck devices comprise a chuck main body, plural chuck jaws, ... | 09/16/2008 |
| 7415766 | Method 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 |
| 7371036 | Tool holding device and method for positioning a tool Disclosed is a tool holding device (22, 50, 58) for retaining a tool (24) on a tool chuck (20). Said tool holding device (22, 50, 58) comprises a tool-accommodating area (32, 52, 66) for at least partly receiving the tool (24 | 05/13/2008 |
| 7365924 | Sight tube pivot assembly An improved aiming tube pivot assembly for use in a sighting and/or aiming apparatus which comprises an aiming tube axially mounted within an outer tube (or housing). A support ring supports the aiming tube within the outer tube in a gimbal-like arrangement by means... | 04/29/2008 |
| 7320568 | Tool holder A tool holder is equipped with a tip run-out correction mechanism for correcting run-out of the tip of the tool. The tip run-out correction mechanism includes an annular stepped portion formed on a cylindrical support portion of a holder body; a ring member rotatabl... | 01/22/2008 |
| 7303195 | Clamping apparatus with a chuck and a pallet releasably attachable thereto The clamping apparatus comprises a chuck member and a pallet releasably attachable thereto. The chuck member has four centering grooves, arranged offset to each other by 90° around the central Z-axis, while the pallet has four correspondingly located centering pins... | 12/04/2007 |
| 7243923 | Centering 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 |
| 7245361 | Method for evaluating refractive index homogeneity of optical member A method for evaluating the refractive index homogeneity of an optical member includes passing light through an optical member (1) used for photolithography. The side surface (1a) with respect to the optical axis (AX) of the optical member (1... | 07/17/2007 |
| 7217071 | Method for testing the fit or imbalance of a tool In the method, a tool is tested for an aligning fit or an imbalance in a tool spindle. The tool spindle is set into rotation. A light beam is used to check whether the tool wobbles. The tool spindle and the light beam are moved relative to one another until the ligh... | 05/15/2007 |
| 7128806 | Mask etch processing apparatus Method and apparatus for supporting and transferring a substrate in a semiconductor wafer processing system are provided. In one aspect, an apparatus is provided for supporting a substrate comprising-a cover ring comprising a base having a bore disposed therethough,... | 10/31/2006 |
| 6994000 | Fixture 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 |
| 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 |
| 6923451 | Tool holder In order to provide a tool holder which greatly reduces frictional resistance between a locknut and a taper collet, and eliminates a twisting of the taper collet during tightening of the locknut, in a tool holder comprising a locknut 13 which pushes a taper c... | 08/02/2005 |
| 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 |
| 6869083 | Eccentric work piece holder and method of making same An eccentric work piece holder supports a work piece in alignment during rotary operations. First-, second- and third aligning members, associated with the rotary axis of a rotary unit, provides pivoting movements relative to the rotary axis while bearing the work p... | 03/22/2005 |
| 6824142 | Method of alignably supporting a work piece for rotary movements A method of alignably supporting an eccentric work piece for rotary movements uses a work piece holder that supports the work piece in alignment during rotary operations. A plurality of cooperating aligning members mounted along the rotary axis of a rotary unit, pro... | 11/30/2004 |
| 6679503 | Chuck unit for machine tool A chuck unit for a machine tool is capable of holding a workpiece installed on a spindle by workpiece holding members that move in a radial direction with respect to an axial center. Workpiece holding rods are provided at the workpiece holding member and ... | 01/20/2004 |
| 6674041 | Sintered holder for a workpiece or tool A holder for a workpiece or tool, in the surface of which a plurality of grooves with substantially planar flanks are made, the opposing edges of which, formed on the surface, have a predetermined spacing, wherein the holder consists of a sintered materia... | 01/06/2004 |
| 6603089 | Quick release chuck for electrodes A chuck used to attach an electrode to a CNC machine or an EDM machine having a quick release mechanism.... | 08/05/2003 |
| 6585573 | Device for the tailstock end centering and clamping of a workpiece with a circular-cylindrical end The device according to the invention for the tailstock end centering and clamping of a rotational workpiece with a circular-cylindrical end comprises a housing with a shank for accommodation in a tailstock barrel, and a chucking pot with a collet located... | 07/01/2003 |
| 6575476 | Chuck for holding a hub assembly A chuck grips the housing of a hub assembly to hold it fast and further engages a hub spindle that is within the housing and rotates the spindle on a bearing that is between it and the housing so that a flange on the hub may be machined with precision. Th... | 06/10/2003 |
| 6568694 | Adjustable workholding jaw assemblies A combination of two or more jaw assemblies for mounting onto a self-centering power chuck to move an irregular workpiece to the axial centerline of the power chuck after it has been clamped. Each jaw assembly has a independent hydraulic system which, whe... | 05/27/2003 |
| 6554291 | Housing and hub for an apparatus for securing a workpiece to a rotatable machine member A housing and hub for an apparatus for securing a workpiece to a rotatable machine member are provided. The machine may include a lathe. The workpiece includes a rotor such a brake rotor. The apparatus includes a hub slidably engageable with a rotatable d... | 04/29/2003 |
| 6460863 | Welding fixture A fixture for receiving and retaining a fitting having a through bore and an end wall. The fixture comprises a body for receiving the fitting, and an actuator for engaging the fitting at the intersection of the through bore and the end wall such that the ... | 10/08/2002 |
| 6378877 | Apparatus for clamping a work piece The apparatus comprises a chuck member to be mounted within the operating area of the machine tool and a work piece carrier that can be put onto the chuck member and clamped thereto. First positioning members provided on the chuck member and second positi... | 04/30/2002 |
| 6367814 | Apparatus for clamping a work piece The apparatus for clamping a work piece in a well defined position within the operating area of a machine tool comprises a chuck member to be mounted within the operating area of the machine tool and a work piece carrier that can be put onto the chuck mem... | 04/09/2002 |
| 6289776 | Method and apparatus for machining bearing housing A scroll machine has a shell which houses a first scroll member, a second scroll member, a driving member and a bearing housing. The bearing housing rotatably supports the driving member and is attached to the shell. The bearing housing is designed such t... | 09/18/2001 |
| 6279919 | Apparatus for securing a workpiece to a rotatable machine member An apparatus for securing a workpiece to a rotatable machine member. The machine may include a lathe. The workpiece includes a rotor such a brake rotor. The apparatus for securing a workpiece to a machine member includes a hub slidably engageable with a r... | 08/28/2001 |
| 6219893 | Coupling for clamping a pallet Described is a coupling, provided at the spindle head of a machine tool, for clamping an especially plate-shaped work-holding fixture, for example a pallet, in a specified, repeatable and precise position relative to a spatial reference system, wherein th... | 04/24/2001 |
| 6199873 | Device for centering and gripping, particularly of automobile bodywork parts A device for centering and gripping, particularly for automotive bodywork parts, comprises a body (1) with an actuating means (2) and has centering means (13) and gripping means (11, 12). The centering means (13) and the gripping means (12) comprise in co... | 03/13/2001 |
| 6186517 | Pilot tool for centering and clamping A tool for centering and clamping of at least a part (P) to be fixed in position and comprising a through passage and adjusted for the tool, comprises a pilot device borne at the end of a case having an upper face forming a support for the part and clampi... | 02/13/2001 |
| 6145849 | Disk processing chuck A memory disk having a central opening and planar sides for receiving magnetic media on both of the sides is bounded by a cylindrical outside diameter peripheral edge and chamfered edges extending between each of the planar sides. The peripheral edge is c... | 11/14/2000 |
| 6142487 | Centering and holding apparatus and method using inclined surface An apparatus for centering and holding a substrate including: (a) a substrate holding assembly defining a centerline; and (b) a substrate centering assembly including an alignment member, wherein the alignment member is disposed concentric with the center... | 11/07/2000 |
| 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 |
| 6062933 | Cathode ray tube and manufacturing apparatus for the same A manufacturing apparatus for a cathode ray tube attaches an electron gun to a neck of a glass valve while grasping the neck with a chuck apparatus. The chuck apparatus has at least three chuck members, a chuck member holding unit and an interlocking unit... | 05/16/2000 |
| 6053083 | Turning and boring machine with double centering positioners A work station between an active spindle adaptor and a passive spindle adaptor having a common rotational axis, receives a workpiece ring supplied from a loader shuttle. The ring has circular outer edges in parallel spaced planes perpendicular to the cyli... | 04/25/2000 |
| 6036197 | Device for clamping and driving a pre-positioned work piece Clamping is ensured by at least two pivoting arms one end of which co-operates with a half draw member (10a, 10b) via a link having a truncated sphere (19) and an inclined plane (10). The draw member is mounted coaxially outside a locking ring (9) displac... | 03/14/2000 |
| 6036198 | Coupling for attaching a tool to a chuck A coupling for attaching a tool to a chuck includes a steel body substantially in the shape of a rectangular prism. The body includes an electrode end for attachment to an electric discharge machine electrode. The body also includes a chuck end opposite t... | 03/14/2000 |
