Snap action fluid pressure switch

Details Snap action fluid pressure switch Snap action fluid pressure switch

1979-01-11

1980-12-09

Tolin, Gerald P.

Electricity: circuit makers and breakers

Fluid pressure

Diaphragm

200 83N, H01H 3534

Patent

active

042386519

ABSTRACT:
A snap action fluid pressure actuated switch, including a switch housing within which is mounted a metallic dome-shaped disc which is dimpled in its center by a predetermined pressure differential to provide a snap action, while being biased to eliminate the deformation and return the switch after the pressure differential declines. The disc is secured to a spool contact movably by the snap action of the disc into and out of electrical contact with either of a pair of contact plates to create an electrical connection between a terminal electrically connected to the metallic disc and either of a pair of terminals connected to a respective contact plate. The free end of the spool contact is piloted at its free end and adjustable fixed stops are provided to position the spool contact in the connected metallic disc at either end point of the snap action movement, while enabling adjustability in the end positions of the spool contact and the pressure conditions causing the snap action to occur.

REFERENCES:
patent: 1908088 (1933-05-01), Warner
patent: 2392077 (1946-01-01), Wilson
patent: 3335244 (1967-08-01), Mejean
patent: 3908105 (1975-09-01), Schuler
patent: 4006083 (1977-02-01), Westervelt

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