Push switch

Details Push switch Push switch

2008-09-30

2008-09-30

Friedhofer, Michael A (Department: 2832)

Electricity: circuit makers and breakers

Multiple circuit control

Sequential operations

C200S406000, C200S516000

Reexamination Certificate

active

11834987

ABSTRACT:
A push switch which includes a switch case, a first movable contact, and a second movable contact. The switch case has a central fixed contact on an inner bottom face of its recess that has an open top, and a peripheral fixed contact. The first movable contact is curved protruding upward, and has a hole at its center. The first movable contact is disposed over the peripheral fixed contact with a space in between. The second movable contact is curved protruding upward, and is placed on the first movable contact. A pressing force for resiliently inverting the second movable contact is set greater than a pressing force for resiliently inverting the first movable contact; and two tactile feedbacks are produced by pressing from a side of the second movable contact.

REFERENCES:
patent: 5898147 (1999-04-01), Domzalski et al.
patent: 6639159 (2003-10-01), Anzai
patent: 6936777 (2005-08-01), Kawakubo
patent: 6995324 (2006-02-01), Asada
patent: 7157650 (2007-01-01), Rochon
patent: 7250581 (2007-07-01), Asada
patent: 2004-031171 (2004-01-01), None

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