Switch mechanism for a pneumatic tool

Details Switch mechanism for a pneumatic tool Switch mechanism for a pneumatic tool

2006-04-25

2006-04-25

Jacyna, J. Casimer (Department: 3751)

Valves and valve actuation

Mechanical movement actuator

Cam

C251S229000, C173S169000

Reexamination Certificate

active

07032881

ABSTRACT:
A switch mechanism for a pneumatic tool comprises a choke ring having an air hole disposed in an air passage of the pneumatic tool; A control rod is swayably inserted through the air hole with a first end of corresponds to a trigger of the pneumatic tool; A choke member is provided for insertion of a second end of the control rod and pushed by a spring to seal the choke ring. A bushing is disposed in an air passage and located between the choke member and the inner wall of the air passage of the base body and between the choke member and the choke ring. By such arrangement, the inner wall of the air passage of the base body and the choke ring can be avoided from being abraded by the choke member.

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