Patent US4146767A successfully refreshed from Google Patents.
US4146767A
Expired / Lapsed
US
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Push-button switch
Assignee: Alps Alpine Co Ltd
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Filing: 1977-09-09
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Granted: 1979-03-27
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Expires: 1997-09-09
Abstract
Abstract A push-button switch comprises a push button, a snap-action spring disc, a contact case formed with a recess for containing therein the snap-action spring disc, a common fixed terminal, and two fixed terminals arranged symmetrically in the position lower than that of the common fixed terminal. The contact case is molded with the three fixed terminals integrally incorporated in the contact case such that the respective contact portions of the three fixed terminals are exposed within the recess thereof.
Inventors
- 👤 Taneo Murata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:05
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/02; H01H13/10; H01H13/26; H01H13/48; H01H11/00; H01H11/0056
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
114 words
A push-button switch comprising: a case formed of electrically insulating material and having a recess; a generally H-shaped common terminal within said recess, said common terminal having two generally parallel, elongate contact portions spaced across said recess from one another and a bridge portion interconnecting said contact portions; a snap-action spherical spring disk comprised of conductive material and having portions of its periphery supported by said contact portions; two fixed terminals each having contacts arranged within said recess at a level below that of said contact portions of said common terminal; and a push button operable when pressed to urge said spring disk into electrical contact with the contacts of said two fixed terminals.
Claim 2
Dependent Claim
114 words
A push-button switch comprising: a case formed of electrically insulating material and having a recess; a generally H-shaped common terminal within said recess, said common terminal having two generally parallel, elongate contact portions spaced across said recess from one another and a bridge portion interconnecting said contact portions; a snap-action spherical spring disk comprised of conductive material and having portions of its periphery supported by said contact portions; two fixed terminals each having contacts arranged within said recess at a level below that of said contact portions of said common terminal; and a push button operable when pressed to urge said spring disk into electrical contact with the contacts of said two fixed terminals.
Claim 3
Dependent Claim
20 words
A push-button switch according to claim 1, said fixed terminals being arranged symmetrically on opposite sides of said bridge portion.
Claim 4
Dependent Claim
36 words
A push-button switch according to claim 2, said case being a molding of a resinous material and having said common terminal and said two fixed terminals embedded therein with said respective contact portion and contacts exposed.
References Cited (Backward Citations)
US3178522A
Cited
US3643051A
Cited
US3808384A
Cited
US3870840A
Cited
US3917917A
Cited
US4063054A
Cited
US3996429A
Cited
US4029916A
Cited
US4056700A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-03-26 | 1982-09-25 | 1983-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-26 | 1986-09-25 | 1987-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-26 | 1990-09-25 | 1991-03-27 | $7700.00 | Window Closed / Lapsed |