Control valve means for pressurized air-operated devices for dri

Details Control valve means for pressurized air-operated devices for dri Control valve means for pressurized air-operated devices for dri

1988-07-11

1990-04-10

Look, Edward K.

Motors: expansible chamber type

Cyclically operable

Working member controlled motive fluid for distributor motor

91308, 91309, 91317, 91461, 227130, F01L 2502

Patent

active

049150138

ABSTRACT:
Control valve means for a driving tool operated with compressed air for the driving of fasteners into workpieces. Through a specific design of the main and the auxiliary valve and through a connection to the piston return chamber the control of the valves are brought into synchronization with the movement of the working piston. By this, high repetition frequencies can be achieved. Further, in the mode "automatic operation" also single shot operation is possible.

REFERENCES:
patent: 3278103 (1966-10-01), Juilfs
patent: 3427928 (1969-02-01), Bade
patent: 3547003 (1970-12-01), Ramspeck
patent: 3583496 (1971-06-01), Fehrs
patent: 3808620 (1974-05-01), Rothfuss et al.
patent: 4304349 (1981-12-01), Novak et al.
patent: 4319705 (1982-03-01), Geist et al.

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