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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Tools & Hardware
Class Information
Number: 451/447
Name: Abrading > Accessory > Abradant supplying > Grader
Description: Abradant supplying accessory including means for sorting used abradant into portions of differing fineness and returning that which is suitable for reuse.










Patents under this class:

Patent Number Title Of Patent Date Issued
7416471 Recovery device of blasting medium and method therefor Aug. 26, 2008
7104869 Barrier removal at low polish pressure Sep. 12, 2006
7070489 Granule dishwashing apparatus and method of use Jul. 4, 2006
7052599 Method and apparatus for reuse of abrasive fluid used in the manufacture of semiconductors May. 30, 2006
6811473 Process for machining a wafer-like workpiece Nov. 2, 2004
6733368 Method for lapping a wafer May. 11, 2004
6722958 Apparatus and process for recovering abrasive Apr. 20, 2004
6645049 Polishing holder for silicon wafers and method of use thereof Nov. 11, 2003
6612905 Silicon wafer polishing holder and method of use thereof Sep. 2, 2003
6609960 Granule dishwasher with improved cleaning design Aug. 26, 2003
6398627 Slurry dispenser having multiple adjustable nozzles Jun. 4, 2002
6371834 Method for preparing glass substrate for magnetic recording medium Apr. 16, 2002
6280301 Granule dishwashing apparatus and method of use Aug. 28, 2001
6224463 Workpiece finishing system and method of operating same May. 1, 2001
6183352 Slurry recycling apparatus and slurry recycling method for chemical-mechanical polishing technique Feb. 6, 2001
6176765 Accumulator for slurry sampling Jan. 23, 2001
6126531 Slurry recycling system of CMP apparatus and method of same Oct. 3, 2000
5709593 Apparatus and method for distribution of slurry in a chemical mechanical polishing system Jan. 20, 1998
5470466 Method and apparatus for removing ferrous particles from coolant fluid during machining Nov. 28, 1995
5071541 Method and apparatus for sorting a mixture of particles Dec. 10, 1991
4187081 Apparatus for treatment of sheet material with the use of ferromagnetic powder Feb. 5, 1980
3984943 Apparatus for treating surfaces of sheet steel or the like Oct. 12, 1976











 
 
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