Contained pressure activated switch

Details Contained pressure activated switch Contained pressure activated switch

1989-07-13

1991-02-12

Tolin, Gerald P.

Electricity: circuit makers and breakers

Fluid pressure

Flow-responsive type

73730, 7386147, 417 38, H01H 3530

Patent

active

049926330

ABSTRACT:
A mechanical pressure switch is provided which includes a conduit that is expandable and contractable in response to the pressure of fluid passing through the conduit. A switch is mounted in a fixed position relative to one portion of the conduit and an actuator is mounted in a fixed position relative to a second, spaced portion of the hose such that the switch will be mechanically activated and deactivated by movement of the actuator relative to the switch in response to pressure changes in the conduit. Preferably the relative positions of the actuator and switch are adjustable in the same direction as the expansion and contraction of the conduit.

REFERENCES:
patent: 1176907 (1916-03-01), Kraft et al.
patent: 3195170 (1965-07-01), Howard
patent: 3424883 (1969-01-01), Heskett
patent: 4065969 (1978-01-01), Dinwiddle
patent: 4090404 (1978-05-01), Dupont et al.
patent: 4335999 (1982-06-01), Lamontagne
patent: 4369780 (1983-01-01), Sakai
patent: 4446344 (1984-05-01), Fiedler
patent: 4499347 (1985-02-01), Richards

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