Importance

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Abstract

An electrical switch assembly is shown as having a housing carrying three electrical terminals with first and second of such terminals respectively terminating in first and second fixed electrical contacts and the third of such terminals being electrically connected to a conductive spring; a further third fixed electrical contact, spaced from the first and second fixed contacts of the first and second terminals, has an aperture formed therein permitting the extension therethrough of an actuator which in turn carries a movable contact which is situated generally between the third fixed contact and the first and second fixed contacts with the spring engaging and urging the movable contact and actuator in a direction whereby the movable contact is moved toward the third fixed contact; a pressure responsive diaphragm situated generally at a side of the third fixed contact operatively engages the actuator and upon sensing sufficient pressure is effective to move the actuator and movable contact against the spring and towards the first and second fixed contacts of the first and second terminals.

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First Claim