Pressure responsive circuit control unit having adjustable, inte

Details Pressure responsive circuit control unit having adjustable, inte Pressure responsive circuit control unit having adjustable, inte

1974-09-30

1976-02-10

Tolin, Gerald P.

Electricity: circuit makers and breakers

Fluid pressure

Piston

73419, 200 56R, 200153LA, H01H 3538

Patent

active

039379124

ABSTRACT:
The circuit control unit of the present invention comprises a piston-type pressure responsive member or gauge wherein one end of the piston extends beyond the gauge body and carries an actuator which is movable with the piston. A circuit control member is mounted for actuation by the actuator for controlling an external electrical circuit in response to changes in fluid pressure as detected by the pressure responsive member. Where desired, an indicator may be mounted in fixed relationship with the pressure responsive member, providing means for visibly indicating the pressure of the fluid and the position of the piston with respect to the pressure responsive member.

REFERENCES:
patent: 2418508 (1947-04-01), Goepfrich
patent: 2437440 (1948-03-01), Rigden
patent: 3472977 (1969-10-01), Ziegler, Jr.
patent: 3576529 (1971-04-01), Garrison
patent: 3703616 (1972-11-01), Martin
patent: 3789669 (1974-02-01), Passman

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