Push-button switch with momentary-on feature

Details Push-button switch with momentary-on feature Push-button switch with momentary-on feature

1988-04-18

1990-08-21

Luebke, Renee S.

Electricity: circuit makers and breakers

Solid contact

Push button operated

2002761, H01H 1356

Patent

active

049508563

ABSTRACT:
A miniature push-button switching apparatus having a housing for enclosing a plunger and a rotating ratchet mechanism for engaging and disengaging the switching contacts, the switching apparatus having a "momentary-on" position for temporarily engaging an electrical load in addition to a "stable-on" switch position with the ratchet mechanism employing a helical contact spring as a switching contact, the contact spring increasing the active length of the switching contact for significantly reducing possible spring yielding problems and further exhibiting improved resiliency properties which enhance the ratchet switching mechanism and reduce the possibility of spring distortion.

REFERENCES:
patent: 2352653 (1944-07-01), O'Brien
patent: 3790734 (1974-02-01), Raab et al.
patent: 4175222 (1979-11-01), Buttner
patent: 4317015 (1982-02-01), Buttner et al.
patent: 4319106 (1982-03-01), Armitage

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