Method of manufacturing revolving whetstone and revolving whetstone manufactured by the same
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United States of America Patent
Stats
-
Mar 27, 2012
Grant Date -
Mar 4, 2010
app pub date -
Mar 10, 2009
filing date -
Aug 27, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
In a method of manufacturing a revolving whetstone comprising a central portion in which a whetstone center hole into which a whetstone driving shaft of a grinder is inserted is arranged and a disk-shaped whetstone body that has an effective whetstone circular portion arranged in the circumferential outside of the central portion as one body, the wall thickness of the central portion is formed thinner than the wall thickness of the effective whetstone circular portion, and a whetstone material for the thinned wall thickness of the central portion is put on the wall thickness surface of the effective whetstone circular portion, and the wall thickness of the effective whetstone circular portion is formed thicker than the wall thickness of the central portion.
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