Abrasive machine and method of abrading work piece
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 6, 2005
Grant Date -
Apr 29, 2004
app pub date -
Oct 23, 2003
filing date -
Oct 25, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The abrasive machine is capable of feeding a proper amount of slurry and preventing a work piece from sticking on an upper abrasive plate. The abrasive machine comprises: the upper abrasive plate abrading an upper face of the work piece and having a plurality of slurry holes for feeding the slurry to the work piece; a lower abrasive plate abrading a lower face of the work piece; a slurry feeding unit pressurizing and feeding the slurry; a plurality of slurry paths respectively connecting the slurry holes to the slurry feeding unit; a plurality of valve mechanisms respectively provided to the slurry paths so as to control flows of the slurry; and a control section for controlling the valve mechanisms.
First Claim
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