Make before break electrical switch

Details Make before break electrical switch Make before break electrical switch

1987-03-19

1988-08-30

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200 682, 200 67A, H01H 3304

Patent

active

047678992

ABSTRACT:
A make before break switch having two opposed fixed contacts separately closed by a pivotal contact lever. A center fixed contact supports the lever for movement both pivotally and vertically so that the contact lever closes on both said two fixed contacts in an intermediate position. A conventional actuator means and spring biasing means controls the contact lever as it is so moved, and a secondary biasing means is provided below the lever to allow the make before break action as the actuating means moves through its intermediate position.

REFERENCES:
patent: 1964561 (1934-06-01), Douglas
patent: 3670116 (1972-06-01), Cryer

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