Abrading – Abrading process – With tool treating or forming
Reexamination Certificate
2006-09-07
2009-12-29
Wilson, Lee D (Department: 3727)
Abrading
Abrading process
With tool treating or forming
C451S285000, C451S041000
Reexamination Certificate
active
07637802
ABSTRACT:
A lapping machine includes a lapping plate, and a workpiece carrier with a workpiece-holding hole disposed on the plate, a workpiece being fitted within the hole in the carrier. The workpiece is lapped while the plate and the carrier are individually rotated and loose abrasive grains are fed onto the plate. A synthetic resin-based elastic abrasive member having a Rockwell hardness (HRS) in the range of −30 to −100 is effective for resurfacing the lapping plate.
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Kazama Kenichi
Sato Shunji
Tsuneya Ayumi
Yasuoka Kai
Birch & Stewart Kolasch & Birch, LLP
Shinano Electric Refining Co., Ltd.
Wilson Lee D
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