Patent US3263050A successfully refreshed from Google Patents.
US3263050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical contact comprising a plurality of flexible curved wires
Assignee: Allis Chalmers Corp
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Filing: 1964-11-25
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Granted: 1966-07-26
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Expires: 1984-11-25
Abstract
No abstract record available.
Inventors
- 👤 Herbert M Pflanz
- 👤 Julius W Timmerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:51
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/02; H01H1/0203
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
IN AN ELECTRIC CIRCUIT BREAKER, IN COMBINATION, A PAIR OF CONTACTS MOVABLE INTO AND OUT OF ENGAGEMENT WITH EACH OTHER, AT LEAST ONE CONTACT OF SAID PAIR OF CONTACTS COMPRISING A PLURALITY OF RESILIENT CLOSELY SPACED ELECTRICALLY CONDUCTIVE FILAMENTS ARRANGED AROUND A CENTRAL LONGITUDINAL AXIS, EACH FILAMENT HAVING ONE END RIGIDLY SECURED WITH RESPECT TO ONE END OF THE OTHER FILAMENTS AND EACH FILAMENT HAVING A FREE END FOR ENGAGEMENT WITH THE OTHER CONTACT OF SAID PAIR OF CONTACTS, EACH OF SAID FILAMENTS BEING HELICALLY CURVED AROUND SAID AXIS BETWEEN ITS ENDS WHEREBY SAID FILAMENT IS ABLVE TO FLEX UPON ENGAGEMENT OF ITS FREE END WITH SAID OTHER CONTACT.
Claim 2
Dependent Claim
109 words
IN AN ELECTRIC CIRCUIT BREAKER, IN COMBINATION, A PAIR OF CONTACTS MOVABLE INTO AND OUT OF ENGAGEMENT WITH EACH OTHER, AT LEAST ONE CONTACT OF SAID PAIR OF CONTACTS COMPRISING A PLURALITY OF RESILIENT CLOSELY SPACED ELECTRICALLY CONDUCTIVE FILAMENTS ARRANGED AROUND A CENTRAL LONGITUDINAL AXIS, EACH FILAMENT HAVING ONE END RIGIDLY SECURED WITH RESPECT TO ONE END OF THE OTHER FILAMENTS AND EACH FILAMENT HAVING A FREE END FOR ENGAGEMENT WITH THE OTHER CONTACT OF SAID PAIR OF CONTACTS, EACH OF SAID FILAMENTS BEING HELICALLY CURVED AROUND SAID AXIS BETWEEN ITS ENDS WHEREBY SAID FILAMENT IS ABLVE TO FLEX UPON ENGAGEMENT OF ITS FREE END WITH SAID OTHER CONTACT.
References Cited (Backward Citations)
US2486042A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |