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Class Information
Number: 451/364
Name: Abrading > Work holder
Description: Means in general for securing the workpiece in position or to facilitate traversing it past the abrader.










Sub-classes under this class:

Class Number Class Name Patents
451/405 Angularly adjustable 52
451/365 Clamp 147
451/389 Drop or dop stick 62
451/403 Indexing 64
451/390 Lens or prism 215
451/391 Portable 39
451/402 Rotary 56
451/388 Vacuum 349
451/392 Work reciprocating 18
451/397 Work rotating 163


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8628377 Flexure assembly Jan. 14, 2014
8574033 Wafer support member, method for manufacturing the same and wafer polishing unit comprising the same Nov. 5, 2013
8323075 Polishing head, polishing apparatus and method for demounting workpiece Dec. 4, 2012
8267745 Methods of grinding semiconductor wafers having improved nanotopology Sep. 18, 2012
8181346 System for forming a labyrinth seal on a turbine blade May. 22, 2012
8167687 Method of thinning wafer and support plate May. 1, 2012
8113914 Treating method for brittle member Feb. 14, 2012
8066553 Wafer clamping device for a double side grinder Nov. 29, 2011
8009282 Attachment angle measuring device and attachment angle measuring method Aug. 30, 2011
7740525 Device for securing material plates, such as glass sheets, during the working thereof Jun. 22, 2010
7738760 Optical polishing fixture Jun. 15, 2010
7578725 Lens layout block device Aug. 25, 2009
7542648 Holder for optical fiber ferrule end face grinding apparatus Jun. 2, 2009
7530883 Fixture for grinding machines May. 12, 2009
7524232 Workpiece centering apparatus and method of centering workpiece Apr. 28, 2009
7504038 System, method, and apparatus for mechanically releasable slider processing including lapping, air bearing patterning, and debonding Mar. 17, 2009
7438286 Workpiece holding jig Oct. 21, 2008
7407431 Optical fiber polishing and finishing system, device and method Aug. 5, 2008
7371157 Fixture for grinding machines May. 13, 2008
7258594 Method and device for centerless cylindrical grinding Aug. 21, 2007
7223162 Holder for wafers May. 29, 2007
7219585 Cutting workstation May. 22, 2007
7189147 Lens layout block device Mar. 13, 2007
7179155 Device for grinding liquid crystal display panel Feb. 20, 2007
7175514 Polishing fixture assembly for a fiber optic cable connector polishing apparatus Feb. 13, 2007
7169022 Method and apparatus for creating a groove in a collector ring of an electrical device Jan. 30, 2007
7153198 Fixture for slider lapping, lapping device and lapping method Dec. 26, 2006
7144299 Methods and devices for supporting substrates using fluids Dec. 5, 2006
7134950 Center clamp Nov. 14, 2006
7115020 Lapping system with mutually stabilized lapping carriers Oct. 3, 2006
7108591 Compliant wafer chuck Sep. 19, 2006
7090559 Ophthalmic lens manufacturing system Aug. 15, 2006
7074119 Polishing jig, conveyor tray, conveying method and conveying device Jul. 11, 2006
7040971 Carrier head with a flexible membrane May. 9, 2006
7038218 Inspection by a transmission electron microscope of a sample May. 2, 2006
6997779 Device for the simultaneous double-side grinding of a workpiece in wafer form Feb. 14, 2006
6979255 Holder for optical fiber ferrule end face grinding apparatus Dec. 27, 2005
6974365 Machine and method for machining workpieces of wood, plastic material or the like Dec. 13, 2005
6939200 Method of predicting plate lapping properties to improve slider fabrication yield Sep. 6, 2005
6921318 Semiconductor die de-processing using a die holder and chemical mechanical polishing Jul. 26, 2005
6913510 Lens stocking device and lens processing system having the same Jul. 5, 2005
6913522 Method and device for grinding central bearing positions on crankshafts Jul. 5, 2005
6899608 Clip mechanism on a grinding cloth platform May. 31, 2005
6890243 Processing method and apparatus of distal end of optical fiber May. 10, 2005
6890249 Carrier head with edge load retaining ring May. 10, 2005
6878049 Random orbital sander Apr. 12, 2005
6869347 Fabrication of devices with fibers engaged to grooves on substrates Mar. 22, 2005
6860800 Panel turning apparatus Mar. 1, 2005
6857946 Carrier head with a flexure Feb. 22, 2005
6846222 Multi-chambered, compliant apparatus for restraining workpiece and applying variable pressure thereto during lapping to improve flatness characteristics of workpiece Jan. 25, 2005

1 2 3 4










 
 
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