Double pole-double throw switch

Details Double pole-double throw switch Double pole-double throw switch

1976-06-14

1978-05-23

Engle, Samuel W.

Electricity: circuit makers and breakers

Special application

Liquid or moisture responsive

200 68, 200159R, 200340, H01H 2100

Patent

active

040912477

ABSTRACT:
A switch construction including a base with first and second pairs of spaced-apart contacts attached to the base and a pair of spaced-apart fulcrum contacts positioned intermediate the pairs of contacts. A pair of bridging contactors is mounted for pivoting movement on the fulcrum contacts for selectively engaging one of the pairs of contacts. The bridging contactors are supported by a rocker and a spring loaded actuator is provided for driving the rocker between the selective engaging positions. The rocker and bridging contactors are assembled so that free movement therebetween is provided to thereby achieve positive engagement of contact surfaces.

REFERENCES:
patent: 3072757 (1963-01-01), Gluck
patent: 3439138 (1969-04-01), Braun
patent: 3694590 (1972-09-01), Otterlei
patent: 3740500 (1973-06-01), Garrett et al.
patent: 3757060 (1973-09-01), Ianuzzi et al.
patent: 3783204 (1974-01-01), Kennedy et al.
patent: 3805005 (1974-04-01), Wilkinson et al.

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