Double column leaf spring push-button switch

Details Double column leaf spring push-button switch Double column leaf spring push-button switch

1975-08-26

1977-01-11

Scott, James R.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200 67DB, H01H 1352

Patent

active

040028798

ABSTRACT:
A push-button switch including a keytop plunger, a base structure for retaining and guiding the key top plunger, and a pair of biasing contact members. The biasing contact members are a pair of opposing column springs mounted in the base structure and are positioned to be bowed into engagement by the depression of the keytop plunger. Specifically, the column leaf spring members are mounted opposite each other to form mirror images. The complete structure is mounted on a printed circuit board with the leaf spring members connected to respective contact leads on the PC board.

REFERENCES:
patent: 2469650 (1949-05-01), Isserstedt
patent: 2658972 (1953-11-01), Brown
patent: 2923787 (1960-02-01), Nelson
patent: 3505631 (1970-04-01), Kondo
patent: 3849611 (1974-11-01), Walker, Jr.
patent: 3902032 (1975-08-01), Koepke

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