Pneumatic impact tool having improved vibration and noise attenu

Details Pneumatic impact tool having improved vibration and noise attenu Pneumatic impact tool having improved vibration and noise attenu

1995-07-05

1997-05-06

Smith, Scott A.

Tool driving or impacting

Impacting devices

With impact cushioning means

1731621, B25D 1711

Patent

active

056261993

ABSTRACT:
Vibration and noise are considerably reduced in a pneumatic impact tool by structure generating a novel vibration dampening action during tool operation. Dampening chamber members in the tool undergo compression when the reciprocating work member recoils as a method for such attenuation. Resilient seal members are further included in the tool construction to assist with the vibration dampening effect. Inclusion of oppositely biased spring members in the tool construction still further reduces the vibration attenuation.

REFERENCES:
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patent: 4310055 (1982-01-01), Wanner et al.
patent: 4402369 (1983-09-01), Nikitin et al.
patent: 4681172 (1987-07-01), Mikiya et al.
patent: 4723610 (1988-02-01), Dummermuth et al.
patent: 5117923 (1992-06-01), Wuhrer
patent: 5407018 (1995-04-01), Henry
patent: 5417294 (1995-05-01), Suher

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