Class 451/232 - Reversing, obverting, or pivoting

Subclass of Class 451 - Abrading
Definition: Abrading machine in which the work holder provides for a
No. of patents: 24
Last issue date: 07/10/2007

Number	Title	Issue Date
7241205	Method of processing a substrate A method of processing a substrate is disclosed, wherein a sidewall surface of a notch portion formed in a circumferential portion of a substrate to be processed is polished by using a cylindrical polishing head rotatable with an axis as a rotational center. ...	07/10/2007
7052385	Self-aligning blade angle guide A device for use in the manual sharpening of arrow broadheads, razor blades and the like includes a unique symmetrical clamp and axle assembly having interchangeable, matched pairs of special purpose jaw members for gripping blades of differing configurations. When ...	05/30/2006
6913526	Polishing machine for polishing periphery of sheet A polishing machine for polishing a periphery of a sheet of the present invention comprises a grinding shaft tilting mechanism (1) capable of changing a tilting angle of a rotary shaft of a grinding stone (3) with respect to a rotary shaft of the sheet...	07/05/2005
6604989	Manufacturing method and apparatus for magnetic head sliders Disclosed herein is a method including the steps of cutting a wafer to prepare a row block having a plurality of head elements arranged in a matrix, bonding a plate member to one side surface of the row block, bonding a row tool to another side surface of...	08/12/2003
6390894	Face gear manufacturing method and apparatus A face gear manufacturing operation wherein a set of oversized teeth are formed on a face gear or tapered pinion gear by a gear cutting operation. The oversized teeth are of a predetermined profile. The gear bearing the oversize teeth is then subjected to...	05/21/2002
6375539	Lapping machine, lapping method, and row tool A lapping machine for lapping a row bar includes a lap plate for providing a lapping surface, a row tool having a plurality of bend cells formed by defining a plurality of slits, a pressure mechanism for pressing the row tool toward the lapping surface of...	04/23/2002
6059642	Apparatus for grinding a shank of a drill bit An apparatus for grinding a shank of a drill bit includes a base and several movable jaws supported by the base, that are movable toward each other and away from each other. A support ring is rotatably secured to the base, which has a central opening that...	05/09/2000
5921847	Grinding fixture and method of remanufacturing tool inserts A swing grinding fixture and process for using the same is disclosed that enables a conventional surface grinder to remanufacture a machine tool cutting insert by grinding a predetermined shape into the insert. A quick clamping insert holder coupled to a ...	07/13/1999
5613898	Device for producing inclined surfaces and grooves on friction pads A device for producing inclines and/or grooves on friction pads, such as brake pads for motor vehicles comprises a table with a mount for the brake pads. The table is linearly moved on a carriage below flat, truncated-conical grind disks which are dispose...	03/25/1997
5331774	Method and device for sharpening chiral blades of dental instruments A device for sharpening a dental instrument has a housing with a clamp movably mounted on the housing. The clamp fixes a dental tool in a holding device at a predetermined position. The dental tool is then sharpened on a fixed, but rotatable sharpening st...	07/26/1994
5148632	Cavity forming in plastic body An apparatus and method for forming a cavity in a rigid, organic plastic body comprises an abrading tool mounted on a carrier, an air spindle for imparting a rotary motion to the tool, and a second air spindle on which the tool carrier is mounted and whic...	09/22/1992
5044123	Concave-convex faceting method and apparatus An apparatus is described for producing concave or convex optically magnified facets about a gem, each facet being a curved surface that is a section of a cylinder. It utilizes a mandrel having an exterior and/or interior cylindrical abrasive surface. The...	09/03/1991
4932162	Camless grinder A method and apparatus has been disclosed for grinding contour punch parts. The apparatus is capable of movement on six axes. The main features of the invention include stopping rotation of the part when a flat surface is desired to be ground on the part ...	06/12/1990
4879845	Machine tool A machine tool includes a stand having a tool mount so that a driven tool can be mounted on the stand and a work-table for supporting a work-table to be machined by the driven tool. A pair of articulated arms connect the work-piece to the stand and each a...	11/14/1989
4860497	Drill grinder having drill holder including chucks for gripping shank and body of the drill A drill grinder for grinding a point of a drill including a shank, and a body which has the point. The drill grinder includes a holding device for removably holding the drill, and a grinding wheel adapted to be forced on the drill point, and to thereby gr...	08/29/1989
4850147	Electrode shaping A method of shaping a nose portion 5 of an electrode 4 in an EDM apparatus comprises, providing a grinding element 9 having a peripheral groove 10 and means for effecting relative movement between the electrode 4 and the grinding element 9, and feeding th...	07/25/1989
4841679	Method and apparatus for manufacturing cam elements Cam elements (1), which are to be secured to a shaft to make a built-up cam shaft assembly, have their peripheries ground to the required shape by being supported in alignment with one another and ground by at least one pass of a contoured grinding wheel ...	06/27/1989
4760672	Simultaneously grinding and polishing preforms for optical lenses An optical surface on a glass preform for an optical lens is simultaneously ground and polished. A glass blank is rotated by a work spindle mounted in an air bearing. A resin bonded diamond cutting ring is rotated by a tool spindle mounted in an air beari...	08/02/1988
4742648	Drill sharpening tool A twist drill sharpening tool comprises a body housing a cylindrical rotatable grindstone with a small diameter and longer axis, and a drill holder which can be fitted into a bore in the body so as to hold the tip of a twist drill in contact with the curv...	05/10/1988
4624081	Turn-around mechanism for workpieces in grinding machines A grinding machine for workpieces having pairs of surfaces which are disposed opposite each other and each of which must be treated by the grinding wheel has one or two inverting heads each of which can removably receive one end portion of a workpiece so ...	11/25/1986
4583326	Abrading machine for abrading a welded seam in an elongated workpiece The present invention relates to an abrading machine comprising two abrading devices, a carrier member that is provided between the two abrading devices so as to be movable toward and away from them. Gripping elements are mounted on the carrier member so ...	04/22/1986
4539871	Saw chain sharpener An upstanding support is provided and a rotary grinding head is journaled from the upper end of the support for rotation about a vertical axis. A horizontally disposed support arm is pivotally mounted from the support at one end portion for swinging about...	09/10/1985
4299142	Grinding machine with reorientable chain holding clamp Grinding apparatus which includes a clamp for holding an article to be ground. The clamp is swung, in orbital fashion, to move the clamp from a position located under a lower edge portion of a grinding wheel located on one side of the wheel's rotation axi...	11/10/1981
4216628	Device for automatically grinding syringe needle point An automatic grinder for grinding a syringe needle point includes a holder for holding a tube to be ground, a grinder, a hold-angle changer to change the angle at which the tube is held, a device to change the angular alignment of the tube by rotating the...	08/12/1980

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Class 451/232 - Reversing, obverting, or pivoting