Latch and switch interlock safety structure

Details Latch and switch interlock safety structure Latch and switch interlock safety structure

1976-08-31

1978-01-31

Scott, James R.

Electricity: circuit makers and breakers

Interlocking

Between plural switches

361339, H01H 920

Patent

active

040717224

ABSTRACT:
A latch and switch interlock safety structure includes an electronic circuit module having a switch normally biased in an OFF state. Regardless of the switch state, upon insertion and removal of the module into a support frame, the latch mechanism interacts with the switch interlock to ensure removal of electrical power to the module. Only after the module is properly mated with the frame can the switch be actuated to its ON state.

REFERENCES:
patent: 2802972 (1957-08-01), Warrington
patent: 2970243 (1961-01-01), Riesz et al.
patent: 3174002 (1965-03-01), Golbeck
patent: 3485966 (1969-12-01), Bailey et al.
patent: 3502825 (1970-03-01), Bailey et al.
patent: 3932716 (1976-01-01), Mottel et al.

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