Pneumatic nailer

Details Pneumatic nailer Pneumatic nailer

1983-07-21

1985-11-26

Maslousky, Paul E.

Motors: expansible chamber type

With motive fluid valve

Relatively movable serial valves

91403, 91410, 91448, 91461, F15B 13042

Patent

active

045548617

ABSTRACT:
In a pneumatic nailer using compressed air for driving nails, a work chamber contains a drive piston and is in communication with a storage chamber for effecting the return of the drive piston after it has driven a nail. A valve unit controls the supply of additional compressed air into the storage chamber. A switching element is arranged to react when a predetermined compressed air pressure is exceeded for controlling the flow of compressed air through the valve unit to the storage chamber. The switching element can be a pressure limiting valve. The combination of the switching element and valve unit avoids unnecessary compressed air losses in the higher pressure operating ranges.

REFERENCES:
patent: 3552270 (1971-01-01), Lange
patent: 3683746 (1972-08-01), Ramspeck
patent: 3850079 (1974-11-01), Fehrs

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