Pneumatic fastener driving apparatus with an improved valve

Details Pneumatic fastener driving apparatus with an improved valve Pneumatic fastener driving apparatus with an improved valve

1991-05-16

1993-05-04

Look, Edward K.

Motors: expansible chamber type

With motive fluid valve

Self-opening exhaust valve held closed by inlet pressure

91461, 227130, F16D 3102, B25C 104

Patent

active

052071430

ABSTRACT:
A pneumatic operated fastener driving device having a trigger valve and an improved main valve with a flexible membrane that controls the flow of compressed air to and from the cylinder. The flexible membrane maintains the main valve close no matter when the tool is connected or disconnect to an air supply line. Further, the main valve including the flexible membrane are designed and constructed to undergo a high number of tool cycles to provide long wear and low maintenance.

REFERENCES:
patent: 3169452 (1965-02-01), Dugin
patent: 3437013 (1969-04-01), Volkmann
patent: 3568909 (1971-03-01), Perkins
patent: 3657968 (1972-04-01), Lange
patent: 3673922 (1972-07-01), Doyle
patent: 4252261 (1981-02-01), Klaus et al.
patent: 4747338 (1988-05-01), Crutcher
patent: 5020712 (1991-06-01), Monacelli

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