Electricity: circuit makers and breakers – Snap – Double snap
Patent
1998-10-26
1999-09-07
Donovan, Lincoln
Electricity: circuit makers and breakers
Snap
Double snap
200406, H01H 520
Patent
active
059472693
ABSTRACT:
In a push button switch, a movable contact plate has an upwardly arcuated movable contact, a pair of side plates at both sides of the movable contact, each side plate has a plurality of downwardly projected permanent contacts, and each of the permanent contacts has a most lower point, a fixed contact plate comprises a pair of first fixed contacts contacted with the most lower points of the permanent contacts, and a second fixed contact disposed between the first fixed contacts, so as to be contacted with the movable contact.
REFERENCES:
patent: 3941964 (1976-03-01), Yoder
patent: 3996429 (1976-12-01), Chu et al.
patent: 4129763 (1978-12-01), Murata
patent: 4484042 (1984-11-01), Matsui
Citizen Electronics Co. Ltd.
Donovan Lincoln
Nguyen Nhung
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