Conscious effort safety switch

Details Conscious effort safety switch Conscious effort safety switch

1989-09-01

1990-08-07

Luebke, Renee S.

Electricity: circuit makers and breakers

Switch activation inhibitor

Actuator blocking device

H01H 320

Patent

active

049470094

ABSTRACT:
A three-position electrical switch includes a rocker-type actuator adapted to be pivoted within a housing in opposite directions from a neutral position to first and second actuated positions in order to close first and second sets of switch contacts. The actuator carries a latch which normally engages the housing to prevent the actuator from being pivoted from its neutral position to either of its switch-closed positions. By manually sliding the latch and then pivoting the actuator, the actuator may be moved to either of its switch-closed positions; the two-step operation requiring a conscious effort and protecting against accidental actuation of the switch. The actuator is frictionally maintained in both of its switch-closed positions but may be returned to its neutral or switch-open position by a simple single motion thereby enabling rapid and easy opening of the switch.

REFERENCES:
patent: 4002874 (1977-01-01), Brown
patent: 4121065 (1978-10-01), Woodard
patent: 4187420 (1980-02-01), Piber

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