US3835276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric switches
Assignee: Plessey Handel und Investments AG
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Filing: 1973-01-18
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Granted: 1974-09-10
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Expires: 1993-01-18
Abstract
Abstract A push-button switch comprises a springy wire which constitutes a switch contact and is so shaped and arranged that in response to the depression of the push-button which is spring-biased a cam deflects the switch contact whereby the contact makes momentary contact with another switch contact to provide contacts closure. Thereafter during the depression of the push-button the first mentioned switch contact disengages from the other wire contact and the cam is shaped so that as the push-button restores to its unoperated position under the action of its biasing spring the springy wire switch contact is deflected without the momentary switching action being repeated.
Inventors
- 👤 J Field
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:09
CPC Classifications
H; H01; H01H; H01H15/00; H01H15/02; H01H15/06; H01H15/10; H01H15/102; H01H13/00; H01H13/50; H01H13/506
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A push-button electric switch comprising a pair of identical springy wire co-operating switch contact members having deformed parts which in response to the depression of the push-button which is spring-biased are deflected simultaneously by cam means on said button for causing momentary contact make or momentary contact break and for permitting the push-button to restore to its unoperated position under the action of its biasing spring without causing said momentary switching action to be repeated.
Claim 2
Dependent Claim
75 words
A push-button electric switch comprising a pair of identical springy wire co-operating switch contact members having deformed parts which in response to the depression of the push-button which is spring-biased are deflected simultaneously by cam means on said button for causing momentary contact make or momentary contact break and for permitting the push-button to restore to its unoperated position under the action of its biasing spring without causing said momentary switching action to be repeated.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-09 | 1978-03-11 | 1978-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-09 | 1982-03-11 | 1982-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-09 | 1986-03-11 | 1986-09-10 | $7700.00 | Window Closed / Lapsed |