Electrical switch

Details Electrical switch Electrical switch

1982-07-08

1984-04-10

Marcus, Stephen

Electricity: circuit makers and breakers

Suspended-wire controlled

200 681, 200157, 200 67A, H01H 1518, H01H 2140

Patent

active

044423284

ABSTRACT:
A slide held in its initial position by a helical tension spring, carries at least one contact bridge, comprising a pair of movable contacts which cooperate with opposite contacts preferably contacts that are fixed to a housing. Between the slide and an operating plunger, a substantially C-shaped snap spring is clamped in inclined position, by which the slide and the operating plunger are retained in their initial positions.
Upon shifting the operating plunger in a selected direction, the inclined spring is righted and, after passing its neutral position, displaces the slide and the parts supported thereon abruptly against the fixed contacts.
A particularly advantageous switching characteristic (shortening of the operating distance in forward switching) is obtained by providing that the side portions of the C-shaped snap spring butt against a stop in the housing, so that the tilting radius of the snap spring is reduced.

REFERENCES:
patent: 2798127 (1957-07-01), Roeser
patent: 2841661 (1958-07-01), Wintle
patent: 2951130 (1960-08-01), Mason
patent: 3290463 (1966-12-01), Johnson
patent: 3312801 (1967-04-01), Schleicher
patent: 3330924 (1967-07-01), Larkin
patent: 3471663 (1969-10-01), Farrell et al.
patent: 3766348 (1973-10-01), Johnson
patent: 4121069 (1978-10-01), Lang

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