Hammer

Details Hammer Hammer

1978-09-08

1981-04-14

Cohen, Irwin C.

Motors: expansible chamber type

With motive fluid valve

Pilot valve

91418, 173138, F15B 13042

Patent

active

042612497

ABSTRACT:
A fluid operable hammer including variable volume exhaust chamber means for receiving motive fluid and improved motive fluid inlet and exhaust valve means cooperable with the exhaust chamber means.

REFERENCES:
patent: Re27244 (1971-12-01), Voitsekhovsky
patent: 1935299 (1933-11-01), Siegert
patent: 2703705 (1955-03-01), Boller
patent: 3079900 (1963-03-01), Hunnicutt
patent: 3732936 (1973-05-01), Sudnishnikov et al.
patent: 3735823 (1973-05-01), Terada
patent: 3817154 (1974-06-01), Martin
patent: 3872934 (1975-03-01), Terada
patent: 3916768 (1975-11-01), Martin
patent: 4012909 (1977-03-01), Hibbard
patent: 4150603 (1979-04-01), Etherington et al.

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