Device for controlling actuators by means of pneumatic pulses

Details Device for controlling actuators by means of pneumatic pulses Device for controlling actuators by means of pneumatic pulses

1980-03-24

1981-12-08

Cohan, Alan

Fluid handling

Systems

Programmer or timer

13762521, 251230, 119 51R, F16K 31122, F16K 1106

Patent

active

043042627

ABSTRACT:
A device for controlling actuators by pneumatic pulses includes a casing having an inlet for vacuum pulses and an outlet connectable to an actuator. A control wheel is rotatably mounted in the casing and has a plurality of indentations therein. A plunger is disposed in a chamber in the casing and is sealingly guided for movement from a normal rest position wherein the plunger is engaged with one of the indentations to a retracted position when the chamber is evacuated, wherein the plunger is engaged with a successive indentation. Rotation of the control wheel is effected when the plunger returns to the rest position. Fluid communication is provided between the inlet and the outlet and between the inlet and the chamber in the casing through the control wheel to control the supply of vacuum pulses to the outlet and to the chamber in dependence on the angular position of the control wheel.

REFERENCES:
patent: 2641280 (1953-06-01), Fleischauer
patent: 3066688 (1962-12-01), Young
patent: 3136335 (1964-06-01), Beech
patent: 3489175 (1970-01-01), Loveless

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