Pneumatic grinder with an improved air intake control apparatus
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United States of America Patent
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Feb 1, 2011
Grant Date -
Oct 7, 2010
app pub date -
Aug 31, 2007
filing date -
Aug 31, 2007
priority date (Note) -
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Abstract
In a pneumatic grinder with an improved air intake control apparatus, a press board is designed on the bottom of a handle of the grinder and disposed at a position proximate to a grinding head, and a force applying end of the press board is turned by fingers by means of a first lever-and-fulcrum pivoting method, so that a pulling end of the press board pulls a pull rod of the air intake control apparatus to move downward and allows air to circulate. The operation by fingers is easier than the operation by pressing a palm onto the top of a handle at the press board. A second lever design allows a speed adjusting knob of the air intake control apparatus to be situated at a position nearer to the grinding head.
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