Pneumatic fastener driving tool having air exhaust arrangement
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United States of America Patent
Stats
-
Mar 10, 1998
Grant Date -
N/A
app pub date -
Aug 27, 1996
filing date -
Sep 14, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A pneumatic fastener driving tool having a cover member which covers an exhaust port of a body portion. The body portion has a top wall, and a cover member is engagingly fixed to an upper portion of the body portion. The cover member and the upper portion of the body portion define an exhaust air passage, and the cover member has an exhaust opening in communication with the exhaust passage. The cover member is formed of an elastic material and has a top wall where a through hole is formed. Normally, a lower surface of the cover member is in surface contact with an upper surface of the top wall of the body portion. If the cover member is thermally deformed, the lower surface of the cover member is separated from the upper surface of the top wall of the body portion, and exhaust air may be leaked into the space. The leaked exhaust air is discharged outside through the through hole.
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