Power operated piston tool with piston automatic return
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United States of America Patent
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Nov 30, 2004
Grant Date -
N/A
app pub date -
Jul 7, 2000
filing date -
Jan 19, 1998
priority date (Note) -
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Abstract
The present invention provides a defect-less and easy to operate power actuated piston tool with automatic piston return, designated for driving fasteners into a base like masonry, concrete, wood or the like. The tool according to the invention is characterized by that on piston shank (11) of piston (1), there is an elastic returning bush (7), situated between piston head (12) and fastener guide (5), said returning bush (7) is a one-piece in shape of bellow, made of elastomeric material, of regularly variable diameter.
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