Interlock switch

Details Interlock switch Interlock switch

1986-08-01

1988-01-05

Pellinen, A. D.

Electricity: circuit makers and breakers

Interlocking

Between plural switches

200 6162, 219 1055C, H01H 920

Patent

active

047177942

ABSTRACT:
A switch mechanism for controlling circuits such as in a microwave oven including a housing with a removable cover and a latch member and plunger member movable between a first position wherein the microwave oven door is closed and a second position, with the primary microwave circuits closed in said first position. Contact arms which all extend in one direction toward the latch member and plunger, a catch for holding the door closed, a slide for operating the primary switch means, and a cam operated by the plunger for operating switch means, all are slidably removable from the housing in a lateral direction. The switch sequence is arranged so that one set of primary contacts open after the other, and the structure is arranged so that if the slide for operating the switch means sticks, the movement of the plunger to the second position will insure that the circuit containing the primary switch means is opened.

REFERENCES:
patent: 4516007 (1985-05-01), Ringdahl et al.
patent: 4528430 (1985-07-01), Lewandowski et al.

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