Fastener installation tool
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United States of America Patent
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-
Dec 16, 1997
Grant Date -
N/A
app pub date -
May 31, 1996
filing date -
Jun 2, 1995
priority date (Note) -
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status (Latency Note)
Importance
Abstract
In a fastener installation tool, return of a head piston (22) is effected by the application of air under pressure to the rear side of the piston. The end of the head cylinder body on the rear side of the piston is provided with a removable end member (34) which is displaceable away from a position in which it is safely secured to the head cylinder body (14). Also, the tool further includes a safety device in the form of air vent means (64) which, if the end member is displaced beyond a predetermined amount, opens to vent air under pressure from the head cylinder body on the rear side of the head piston (22), thereby preventing the return of the head piston and thus the further operation of the tool.
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