US3158722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coil structure for producing a magnetic field in an electric circuit interrupter
Assignee: General Electric Co
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Filing: 1962-11-14
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Granted: 1964-11-24
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Expires: 1982-11-14
Abstract
No abstract record available.
Inventors
- 👤 Porter Joseph William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:56
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/60; H01H33/66; H01H33/664; H01H33/6644; H01H33/6645
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
IN AN ELECTRIC CIRCUIT INTERRUPTER THAT COMPRISES A PAIR OF ELECTRODES BETWEEN WHICH AN ARC IS ADAPTED TO BE ESTABLISHED, (A) AN ELONGATED ROD OF HIGHLY CONDUCTIVE MATERIAL FOR SUPPORTING ONE OF SAID ELECTRODES, (B) MEANS FOR ELECTRICALLY CONNECTING SAID ONE ELECTRODE TO SAID ROD AT THE INNER END OF THE ROD, (C) CURRENT-DIRECTING MEANS FOR FORCING CURRENT FLOWING THROUGH SAID ROD TO OR FROM SAID ONE ELECTRODE TO FOLLOW A GENERALLY HELICAL PATH IN THE REGION OF SAID ROD ADJACENT SAID ONE ELECTRODE, (D) SAID CURRENT-DIRECTING MEANS COMPRISING A PLURALITY OF SLOTS EXTENDING TRANSVERSELY OF SAID ROD AT LOCATIONS CLOSELY SPACED-APART LONGITUDINALLY OF SAID ROD IN THE REGION ADJACENT SAID ONE ELECTRODE,
Claim 2
Dependent Claim
113 words
IN AN ELECTRIC CIRCUIT INTERRUPTER THAT COMPRISES A PAIR OF ELECTRODES BETWEEN WHICH AN ARC IS ADAPTED TO BE ESTABLISHED, (A) AN ELONGATED ROD OF HIGHLY CONDUCTIVE MATERIAL FOR SUPPORTING ONE OF SAID ELECTRODES, (B) MEANS FOR ELECTRICALLY CONNECTING SAID ONE ELECTRODE TO SAID ROD AT THE INNER END OF THE ROD, (C) CURRENT-DIRECTING MEANS FOR FORCING CURRENT FLOWING THROUGH SAID ROD TO OR FROM SAID ONE ELECTRODE TO FOLLOW A GENERALLY HELICAL PATH IN THE REGION OF SAID ROD ADJACENT SAID ONE ELECTRODE, (D) SAID CURRENT-DIRECTING MEANS COMPRISING A PLURALITY OF SLOTS EXTENDING TRANSVERSELY OF SAID ROD AT LOCATIONS CLOSELY SPACED-APART LONGITUDINALLY OF SAID ROD IN THE REGION ADJACENT SAID ONE ELECTRODE,
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |