Selectively lockable push switch

Details Selectively lockable push switch Selectively lockable push switch

1982-09-27

1984-08-21

Marcus, Stephen

Electricity: circuit makers and breakers

Liquid contact

Time delay

200291, 200 16R, H01H 1364

Patent

active

044671598

ABSTRACT:
A selectively lockable push switch adapted to be turned on in a multistage manner, including a casing, a holder movable together with a knob projecting out of a through-opening of the casing, a compression spring for urging the holder upwardly, an uneven portion formed on either one of the holder and the casing, a coiled spring provided with a lever member having an engageable portion formed at its one end such that the engageable portion is moved along a grooved displacement passage formed on the uneven portion in response to upward and downward displacement of the holder, and switch means selectively turned on in the multistage manner in response to displacement of the holder.

REFERENCES:
patent: 3629526 (1971-12-01), Lewis
patent: 3639714 (1972-02-01), Fujimoto
patent: 3821534 (1974-06-01), Mehner et al.
patent: 3982090 (1976-09-01), Lewis
patent: 4112277 (1978-09-01), Kleeb
patent: 4152565 (1979-05-01), Rose
patent: 4254315 (1981-03-01), Stevens

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