Class 451/407 - For centerless abrader

Subclass of Class 451 - Abrading
Definition: Work rest especially adapted for supporting the workpiece
No. of patents: 39
Last issue date: 09/30/2008

Number	Title	Issue Date
7429208	Automated system for precision grinding of feedstock A grinding system for grinding feedstock includes a transport apparatus, a grinding apparatus, and a controller. The transport apparatus continuously transports feedstock of an arbitrarily long length at a desired feed rate, and the grinding apparatus grinds the fee...	09/30/2008
7258594	Method and device for centerless cylindrical grinding During centerless cylindrical grinding, attention must be paid to the fact that the workpiece (3) is placed in a very specific position between the grinding wheel (1), the regulating wheel (2) and the support guide (4). The optimal positi...	08/21/2007
7189144	Centerless grinding apparatus and centerless grinding method A centerless grinding apparatus (10) includes an outer diameter surface grinding wheel (11) for grinding the outer diameter surface of a work (1) of a substantially cylindrical shape, a regulating wheel (12) for supporting the outer diame...	03/13/2007
7147542	Centerless grinder A centerless grinder for grinding an elongated workpiece includes a grinding wheel having a working surface with a plurality of raised areas extending circumferentially around at least a portion of the working surface. A platform is provided having an elongated top ...	12/12/2006
7118462	Disk for toroidal continuously variable transmission and method of machining the same A method of machining a disk for a toroidal-type continuously variable transmission, has the steps of fixing a disk to a core bar having a pair of reference portions for rotation at both end thereof, clamping the reference portions by a first center and a second cen...	10/10/2006
7008294	Method and device for grinding a rotating roller using an elastic steady-rest support The invention relates to a device for grinding rollers, also for grinding hollow rollers. As the rollers tend to vibrate transversally as a result of the contact with the grinding disc, a cushioned body is applied to the opposite side of the roller from the grinding...	03/07/2006
6991518	Automated system for precision grinding of feedstock A grinding system for grinding feedstock includes a transport apparatus, a grinding apparatus, and a controller. The transport apparatus continuously transports feedstock of an arbitrarily long length at a desired feed rate, and the grinding apparatus grinds the fee...	01/31/2006
6852006	Automated system for precision grinding of feedstock A grinding system for grinding feedstock includes a transport apparatus, a grinding apparatus, and a controller. The transport apparatus continuously transports feedstock of an arbitrarily long length at a desired feed rate, and the grinding apparatus grinds the fee...	02/08/2005
6729948	Method and apparatus for rectifying cylindrical articles, in particular nuclear fuel pellets The present invention relates to a method and apparatus for rectifying cylindrical articles, in particular nuclear fuel pellets. In said method, in characteristic manner, the dust generated by the rectification by a working grind wheel acting on said pellets remains...	05/04/2004
6729938	Centerless grinding machine A centerless grinder 1 according to the present invention comprises a bed 108, a grinding wheel spindle stock 101, a regulating wheel spindle stock 102, a work rest 103, and the like. The grinding wheel spindle stock 101 and...	05/04/2004
6312318	Method and machine for centerless angular plunge grinding A method and a grinding machine for centerless angular plunge grinding a workpiece are disclosed. The workpiece is rotatable about a first axis and has essentially cylindrical sections of different diameter and at least one shoulder located between the se...	11/06/2001
6306018	Grinding methods and apparatus The time to grind a workpiece can be reduced by selecting a grinding wheel whose width is not substantially greater than wheel strength considerations require, and which may therefore be less than the axial length fo the region to be ground providing a wo...	10/23/2001
6287183	Vacuum-hydrostatic shoe for centerless grinding A vacuum-hydrostatic shoe especially suited for supporting a workpiece in metalworking operations is disclosed. The vacuum-hydrostatic shoe is comprised of a body with a support surface confronting the workpiece. Preferably the support surface is shaped t...	09/11/2001
6257972	Steady rest having linear sliding clamping bars This invention is related to a steady rest, which employs a pair of parallel, sliding, linear moving clamping bars for moving wear pads or rollers toward a workpiece....	07/10/2001
5800247	Non-contact gaging apparatus and method An apparatus for non-contact gauging in precision machining, which comprises a sensor arm, a sensor head, a display device, a data entry device, a rotary encoder, and positioning device. The sensor head has a coarse contact sensor and a fine non-contact s...	09/01/1998
5700186	Motorized spindle with indexing fixture A spindle, comprised of a spindle body and an indexing fixture, is configured to retain, and rotatingly drive, a crankshaft relative to a grinding tool, so that each pin on the crankshaft is ground with a high degree of precision. A locking mechanism, suc...	12/23/1997
5643049	Floating contact gage for measuring cylindrical workpieces exiting a grinder A gage for a thrufeed centerless grinder for post process gaging of a work piece in which the gage is mounted for movement so as to track along a moving work piece as it is moved along a path of travel from the grinder. The gage is movable in two directio...	07/01/1997
5643051	Centerless grinding process and apparatus therefor In a method for minimizing the roundness error in an workpiece having a generally circular periphery during centerless grinding of the workpiece, the workpiece is rotatably supported on the upper surface of a first workpiece support between the grinding w...	07/01/1997
5558567	Centerless machine A device at centreless grinding machine incorporating a frame (1), a regulating wheel carriage (7) individually displaceably supported on guides (2) in the frame and supporting a regulating wheel (9), a grinding wheel carriage (3) individually displaceabl...	09/24/1996
5554063	Centerless grinder having inside diameter size control and method therefor A centerless grinding machine comprises a stationary disk, a following disk, and a shoe, which cooperate to hold and rotate a workpiece. The following disk is mechanically loaded to the bias towards the stationary disk and the shoe so that the workpiece i...	09/10/1996
5525092	Device for preventing idle rotation in cylindrical ingot grinder When a cylindrical single crystal ingot terminating in generally conical parts at the opposite ends thereof is machined with a cylindrical grinder which is adapted to support the ingot in place by fastening the conical parts of the ingot to a spindle side...	06/11/1996
5471796	Multi-purpose lathe A multiple purpose lathe which can include a special valve polishing device, a camshaft lap device and other mechanisms. The valve polishing device includes a pair of generally axially parallel, rotatable rollers positioned to bear against and support a v...	12/05/1995
5355633	Method of grinding a workpiece having plural cylindrical portions with plural grinding wheels A method of grinding plural journal portions of a workpiece with plural grinding wheels. In the method, a pair of work rests are used to support two selected journal portions, and the selected two journal portions have a larger initial diameter as compare...	10/18/1994
5231798	Centerless microfinishing machine An improved micro-finishing machine is disclosed in which a transfer system is provided to move workpieces into and out of the machine in a path perpendicular to the axes of the machine drive rollers. The transfer system further enables an inprocess size ...	08/03/1993
5218788	Valve stem polishing method and apparatus An apparatus and method for polishing combustion engine valves. The machine includes a rotating deburring wheel for on contact with the valve stem and a regulating surface which provides support and applies a rotational force to the valve stem. A pair of ...	06/15/1993
5213348	Workpart chuck positioning mechanism with independent shoes A workpart chuck centering mechanism moves towards the axis of rotation of the chuck as the chuck rotates in an eccentric non-centered position. The centering mechanism includes two independent shoes. Each shoe is driven by a servo-motor and encoder. The ...	05/25/1993
5121571	Workpiece support for centerless grinder A workpiece support apparatus for centerless grinding includes a rotatable base mountable to a standard grinding machine and a carriage assembly mounted on the rotatable base. The carriage assembly has a motor driven regulating roller attached thereto for...	06/16/1992
5108117	Workpart chuck positioning mechanism with independent shoes A workpart chuck centering mechanism moves towards the axis of rotation of the chuck as the chuck rotates in an eccentric non-centered position. The centering mechanism includes two independent shoes. Each shoe is driven by a servo-motor and encoder. The ...	04/28/1992
4930260	Centerless grinding apparatus of through-feed type In a centerless grinding apparatus, a first and a second guide plates are disposed on the side of a grinding wheel, as well as a third and a fourth guide plates are disposed on the side of a regulating feed wheel in parallel relation to the first and seco...	06/05/1990
4856231	Machine for grinding large balls A machine for grinding large balls, in particular of natural or artificial stone, comprises a dish-shaped grinding tool and an arrangement for moving a ball blank in the grinding tool; the grinding tool is arranged vertically above the ball blank which is...	08/15/1989
4827673	Process and device for grinding moulding blanks to size For grinding to size a preform (18), particularly a cast preform, wherewith one or more cyindrical or conical regions (3, 4) and an end region (10) are to be ground to size between centers without re-chucking, a U-shaped intermediate jig (23) is required,...	05/09/1989
4570387	Centerless grinding machine In a centerless grinding machine, a work blade for rotatably carrying a workpiece is movable by a blade feed device in a direction normal to a first line extending across the axes of grinding and regulating wheels. Present diameters of the wheels, a desir...	02/18/1986
4519166	Workpiece handling apparatus for grinding machines Workpiece handling apparatus for use in grinding machines wherein a pair of unground workpieces can be transported from holding or feed apparatus to a respective pair of load positions at the grinding wheel and simultaneously unload a pair of finished or ...	05/28/1985
4292766	Method and apparatus for grinding a workpiece An improved grinding method and apparatus is advantageously used to sequentially grind the pins of a crankshaft. During the grinding of each crankpin, the pin is supported by a steadyrest. During an initial grinding operation, the crankpins are measured o...	10/06/1981
4275527	Centerless grinding machine A centerless grinding machine which comprises a grinding wheel, a regulating wheel, a blade and an inprocess gaging device and in which said gaging device includes a pair of feelers each having a contact adapted to contact each one of the wheels and the b...	06/30/1981
4086065	Method of rigidifying work rest blade for centerless grinder A work rest blade assembly for a centerless grinder that provides multiple wear surfaces on which a work piece may be supported. The work rest blade assembly includes a generally cylindrical work rest bar splined at opposite ends and clamped to a crowned ...	04/25/1978
4069623	Work rest blade for centerless grinder Presented is a work rest blade assembly for a centerless grinder that provides multiple wear surfaces on which a work piece may be supported. The work rest blade assembly includes a generally cylindrical work rest bar splined at opposite ends and clamped ...	01/24/1978
4055027	Method and relative device for checking the working conditions during the grinding in centerless grinders A measuring and control method to check the position and/or wear of a knife element supporting a piece being machined in centerless grinders including foreseeing the generation of signals responsive to the position of the workpiece surface close to the su...	10/25/1977

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Class 451/407 - For centerless abrader