Pushbutton switch

Details Pushbutton switch Pushbutton switch

1987-04-24

1988-07-12

Recla, Henry J.

Electricity: circuit makers and breakers

Special application

Liquid or moisture responsive

200153J, 200 681, 200275, 200340, 200159R, H01H 106, H01H 504, H01H 1356

Patent

active

047571640

ABSTRACT:
A pushbutton switch comprising a housing within which a pushbutton can move ith respect to a housing socket is described. Within the housing is placed a switch plunger which moves longitudinally and can also pivot through a small angle. A contact bridge, which can be pivoted in an oversprung fashion between two fixed contacts, is disposed in the housing. The placement of the contact bridge is governed by a switch rocker, which is arranged in a hinged fashion in the housing. This allows the switch plunger and switch rocker to engage. The counterbearing for the contact bridge consists of a knife-edge bearing in the switch rocker. Between the switch plunger and the switch rocker is a return spring, arranged so that in the rest position of the pushbutton, the switch plunger occupies a pivoted position remote from the middle position. The cross motion of the switch plunger is halted, depending on the direction of motion of the pushbutton, by a constraining guide on each side.

REFERENCES:
patent: 2044065 (1936-06-01), Douglas
patent: 2295484 (1942-09-01), Krieger
patent: 2576771 (1951-11-01), Bently
patent: 2623960 (1952-12-01), Haydon
patent: 2668204 (1954-02-01), Tregoning
patent: 3394403 (1968-07-01), Dennison
patent: 3521013 (1970-07-01), Baumanis
patent: 3789173 (1974-01-01), Bury
patent: 4204102 (1980-05-01), Bull
patent: 4287401 (1981-09-01), Rohrbach
patent: 4354076 (1982-10-01), Lutzenberger

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