Pneumatic fastener driving tool having an air exhaust arrangement
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 5, 1992
Grant Date -
N/A
app pub date -
Jul 23, 1991
filing date -
Aug 10, 1990
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A pneumatic fastener driving tool having an elastic cap means for changing compressed air exhausting direction. The cap means has a circular disc shaped top wall and a skirt portion extending from an outer peripheral end portion of the top wall. The skirt portion has a lower portion integrally provided with an annular projection extending radially inwardly. The cap means is elastically deformable and engageable with a casing positioned above a main body portion in which a drive piston is reciprocally disposed. The casing is formed with an annular groove with which the annular projection is engageable. The casing is formed with a fluid passage to allow compressed air in the main body portion to be discharged therethrough to an atmosphere. The cap means is also formed with an exhaust opening in communication with the fluid passage. Upon manual rotation of the cap member against a frictional force given by the engagement between the projection and the groove, an angular position of the exhaust port can be changed.
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