Double pole contact operating mechanism

Details Double pole contact operating mechanism Double pole contact operating mechanism

1976-01-16

1977-11-15

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Contact-actuating means

335194, 335200, H01H 5058

Patent

active

040587819

ABSTRACT:
A double pole double throw relay has two flexible electrically conductive contact arms which each carry an electrical contact positioned to engage cooperating contacts. Contact closing pressure is simultaneously applied to both contact arms by a yoke made of electrical insulating material which extends transversely of the arms and is pivotally connected midway of its length to an actuator which is positioned between the contact arms and is movable toward and away from the arms. The pivotal mounting of the yoke tends to equalize the contact closing pressure. In one embodiment, the yoke is supported by yielding means to provide a degree of overtravel which maintains pressure and compensates for contact erosion and water.

REFERENCES:
patent: 3484729 (1969-12-01), Adams et al.
patent: 3684986 (1972-08-01), Nagamoto et al.
patent: 3733568 (1973-05-01), Prouty et al.
patent: 3864652 (1975-02-01), Zubaty et al.

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