Sequential AND fluid logic device

Details Sequential AND fluid logic device Sequential AND fluid logic device

1978-12-07

1980-08-12

Michalsky, Gerald A.

Fluid handling

Systems

Multi-way valve unit

F16K 1104, F16K 31126

Patent

active

042167990

ABSTRACT:
A sequential AND fluid logic device has a first input (a) and a second input (b) with a single output (c). An output signal results whenever the input signals are provided sequentially to the first input (a) and the second input (b). The device includes a body member with a throughbore. An actuator is placed into the throughbore for cooperation with a first seat at one end of the throughbore. A diaphragm is arranged in opposed relation to the actuator and cooperates with the actuator. Another seat is cooperative with a poppet member at the opposite end of the throughbore. The area associated with the first seat is less than the active area associated with the diaphragm which, in turn, is less than the area associated with the other seat to assure sequential operation of the device.

REFERENCES:
patent: 3385322 (1968-05-01), Brandenberg

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