Electric switch

Details Electric switch Electric switch

1979-02-26

1980-10-28

Marcus, Stephen

Electricity: circuit makers and breakers

Liquid contact

Time delay

200328, H01H 352

Patent

active

042309212

ABSTRACT:
In a push-push switch a contact carrier is provided which carries a contact member movable to and from a position in which it touches two terminals. The contact carrier member is provided with a central ribbed boss movable in a channel defined by co-operating axially extending ribs, the lowermost surface of the boss being serrated to cause rotation of a rotatable member having arms which engage the serrations or movement thereof by the push-button. The arms, in one position can pass freely past the ribs, and in another position engage a stop surface on the ribs, thus retaining the contact carrier member in a lower position in which the switch is closed. A first spring biasses the rotatable member upwardly and a second spring biasses the contact carrier downwardly.

REFERENCES:
patent: 2945111 (1960-07-01), McCormick
patent: 3402379 (1968-09-01), Amis, Jr. et al.
patent: 3523168 (1970-08-01), Holmes
patent: 3694603 (1972-09-01), Congelliere et al.
patent: 3790734 (1974-02-01), Raab et al.

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