Plural-circuit progressive switch

Details Plural-circuit progressive switch Plural-circuit progressive switch

1975-10-07

1977-05-10

Smith, Jr., David

Electricity: circuit makers and breakers

Special application

Liquid or moisture responsive

200 6BA, H01H 1328

Patent

active

040229998

ABSTRACT:
A rocking contactor switch of the two-circuit progressive action type having three spaced stationary contacts, a flexible contactor connected to the first stationary contact and self-biased to disengage the second stationary contact, and a three-position rocking contactor. The switch is operable from an "off" position wherein the rocking contactor engages only the first stationary contact and the flexible contactor to a one circuit "on" position wherein the rocking contactor rocks over to press the flexible contactor into engagement with the second stationary contact while remaining in engagement with the first stationary contact, and then to a two circuit "on" position wherein the rocking contactor rocks further to engage the third stationary contacts while maintaining the flexible contactor pressed against the second stationary contact thereby to connect electrically all three stationary contacts.

REFERENCES:
patent: 3169172 (1965-02-01), Hagberg
patent: 3482067 (1969-12-01), Sanford
patent: 3825711 (1974-07-01), Lewis

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