Class 451/140 - Work rotating

Subclass of Class 451 - Abrading
Definition: Abrading machine in which the workpiece turns about an axis.
No. of patents: 32
Last issue date: 08/07/2007

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Number	Title	Issue Date
7252618	Rack and pinion transmission for a pintle valve A rack and pinion gear train actuator for a pintle valve. A motor shaft has a pinion gear that engages a large reduction gear having an integral hub gear. The hub gear is a planet gear for a ring gear segment that pivots on a shaft and includes a pinion gear segment...	08/07/2007
7147547	Method and device for grinding a rotationally symmetric machine part A method and a device for grinding a machine part that has two shaft elements, a machine part axis and a large diameter central element having a side surface which is embodied in the form of a flat truncated cone. The machine part is clamped between centers and is m...	12/12/2006
7118449	Method of manufacturing an optical element A method of manufacturing an optical element having an optical surface extending close to a periphery of a substrate comprises: providing a substrate having a main surface extending beyond a periphery of the optical surface and also performing a polishing of the opt...	10/10/2006
7097544	Chemical mechanical polishing system having multiple polishing stations and providing relative linear polishing motion An apparatus and associated methods for polishing semiconductor wafers and other workpieces that includes polishing surfaces located at multiple polishing stations. Multiple wafer heads, preferably at least one greater in number than the number of polishing stations...	08/29/2006
7004826	Device for smoothing gear wheels An apparatus for smoothing gear wheels has a single smoothing wheel and two further smoothing wheels opposite the single smoothing wheel. A clamping device for axially clamping the gearwheel to be smoothed can oscillate in a direction perpendicular to its rotation. ...	02/28/2006
6971946	Manufacturing method of roller of film or tape handling machine A lot of concave portions and convex portions are formed on a circumferential face of base metal cylinder or roller. Summits of the convex positions are ground and removed or erased. The base metal cylinder or roller is plated and coated to harden the circumferentia...	12/06/2005
6881130	Edge grinding A method of positioning a grooved grinding wheel relative to a disc-like circular workpiece for edge grinding the workpiece using the groove in the wheel includes the steps of mounting the workpiece for rotation about a first axis, mounting the grinding wheel for ro...	04/19/2005
6722961	Polishing machine for wheel rims It comprises a plurality of carrying units mounted on a turntable, with each of the carrying units securing a wheel rim or the like to be polished, and a plurality of polishing units, each one of which includes a polishing element that carries out a polishing operat...	04/20/2004
6227952	Apparatus for creating a concave surface from a spectacle blank A method for creation of a surface from a rough blank for spectacles is which is suitable for both brittle-hard materials and for plastics uses makes use of a disk-shaped, rotation-symmetrical tool of relatively large diameter, by means of which the mater...	05/08/2001
6106366	Lens grinder A machine for cutting/grinding ophthalmic lenses has a lens spindle aligned on a vertical longitudinal axis and a tool spindle aligned on an angled axis in relation to the vertical axis. The lens blank is chucked on the upper end of the lens spindle and a...	08/22/2000
6018860	Process for manufacturing drilled taper point surgical needles A process for manufacturing wire or needles having a taper point and mechanically drilled suture mounting holes in the proximal ends. Needle or wire blanks are cut from a roll of wire and mounted to a carrier strip. The carrier strip and needles are moved...	02/01/2000
5938381	Method and tool for creating a concave surface from a spectacle blank A method for creation of a surface from a rough blank for spectacles is which is suitable for both brittle-hard materials and for plastics uses makes use of a disk-shaped, rotation-symmetrical tool of relatively large diameter, by means of which the mater...	08/17/1999
5697831	Machine tool with plural tool spindles A circular grinding machine wherein a reciprocable carriage supports a first rotary tool spindle for a relatively large grinding wheel and the housing including the bearing for the first spindle mounts a carrier which is pivotable about the axis of the fi...	12/16/1997
5644834	Process for manufacturing taper point surgical needles A process for manufacturing wire or needles having a taper point. Needle or wire blanks are cut from a roll of wire and mounted to a carrier strip. The carrier strip and needles are moved through a succession of forming and trimming and grinding stations....	07/08/1997
5539973	Process for manufacturing taper point surgical needles A process for manufacturing wire or needles having a taper point. Needle or wire blanks are cut from a roll of wire and mounted to a carrier strip. The carrier strip and needles are moved through a succession of forming and trimming and grinding stations....	07/30/1996
5486133	Timing belt grinding apparatus and method A toothed timing belt is produced from a belt blank utilizing an apparatus having a belt blank fixturing device for supporting the belt blank for selective indexable rotation about a first axis and a toothed grinding wheel rotatable about a second transve...	01/23/1996
5477604	Process for manufacturing taper point surgical needles A process for manufacturing wire or needles having a taper point. Needle or wire blanks are cut from a roll of wire and mounted to a carrier strip. The carrier strip and needles are moved through a succession of forming and trimming and grinding stations....	12/26/1995
5400546	Precision twist drill sharpener/point splitting machine A twist drill sharpener employing a pair of rotary grinding wheels has three primary drill chuck receiving openings, one for alignment of the twist drill and cams on the twist drill chuck; a second receptacle for grinding the end of a chucked twist drill;...	03/28/1995
4934102	System for mechanical planarization A polishing tool for abrasively polishing a semiconductor wafer that edge clamps the wafer between two rollers. The wafer is spun-up in one plane and the rollers spin in a second plane which is orthogonal to the wafer spin plane. One of the rollers is spl...	06/19/1990
4831783	Method and apparatus for surface grinding of small diameter long bore holes There is provided a method and apparatus for inside surface finishing with a high degree of dimensional accuracy and axial parallelism for long bores of very small diameter in work pieces. The method employs a high tensile strength steel wire as the grind...	05/23/1989
4831782	Apparatus for grinding a workpiece An improved grinding apparatus includes a base (100) upon which a headstock (20) is mounted. A carriage (500) is movable along ways (101, 102) disposed on the base. A wheel slide (63) on the carriage rotatably support a grinding wheel (71). A first mounti...	05/23/1989
4707944	Apparatus for honing a cylinder An apparatus for honing large, long, horizontally-oriented cylinders employs an elongate support beam, extending axially through the cylinder, to support a non-rotating honing head for axial movement within the cylinder. The honing head includes three hon...	11/24/1987
4662118	Grinding machine A cam grinding machine wherein the slide which supports the grinding wheel need not support the motor which rotates the grinding wheel so that the inertia of the slide is low and the slide can be reciprocated toward and away from the rotating workpiece at...	05/05/1987
4553885	Apparatus for the initial and improvement machining of active surface of steer cams, particularly of brake spanners An apparatus for original and improvement machining of the active surfaces of steer cams, mainly of brake spanners, in which the kinematic chain connecting together a work piece being rotation-safely clamped and a basic slide comprises a non-reversing fre...	11/19/1985
4550532	Automated machining method Disclosed is a process which produces precision ground articles such as tungsten carbide burs without the use of skilled craftsmen. An automatic apparatus is described which is capable of performing the motions necessary to produce a machined given object...	11/05/1985
4441281	Pulse cancellation circuitry A digital control system for a roll grinding machine controls the infeed of the grinding wheel in a manner which minimizes the impact of momentary changes in infeed command. The momentary change in infeed command which is effectively controlled is that of...	04/10/1984
4426747	Wheel rim buffer A polishing machine for wheel rims including a power driven wire brush or buffer mounted so as to be slidably movable axially of the shaft driving the brush. The wheel and rim are separately driven and are mounted so that it can be swiveled so as to tilt ...	01/24/1984
4363193	Universal grinding machine During grinding, a grinding wheel effects movements of solely vertical displacement along a path parallel to a vertical guide rod. The workpiece to be machined is held by a rotatable, but not axially displaceable, chuck secured to a workpiece head. In ord...	12/14/1982
4321843	Process for the production of drawing die bores A process for the production of drawing die bores, especially in hard metal or carbide wire drawing dies, wherein each bore has an inlet cone portion on the feed side of the die and a cylindrical calibrating portion along a common axis, the process being ...	03/30/1982
4207708	Piston ring honing A piston ring honing machine and method are disclosed wherein a stack of piston rings are face finished simultaneously by compressing the rings radially inwardly and into a generally circular configuration and retaining the outside diameter of that circul...	06/17/1980
4192103	Cutting reel grinder with automatic control A cutting reel grinder is disclosed which includes an automatic control for operating the grinding device as well as an indexing device that advances cutter reel knives for sharpening by the grinding device. The control includes a pair of electrical actua...	03/11/1980
4009499	Apparatus for treating the surface of an article Apparatus for treating the surface of an article, for example a metallic automobile wheel, comprises a rotatable clamping table for holding the article, the clamping operation being performed by dogs manually operable by a bell crank for engaging the arti...	03/01/1977

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Class 451/140 - Work rotating