US3178622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical capacitor with thermal fuse
Assignee: General Electric Co
•
Filing: 1964-03-26
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Granted: 1965-04-13
•
Expires: 1984-03-26
Abstract
No abstract record available.
Inventors
- 👤 Carl E Paul
- 👤 Frederick W Grahame
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:28
CPC Classifications
H; H01; H01G; H01G2/00; H01G2/14; H01G2/16; H01G4/00; H01G4/32; Y; Y10; Y10S; Y10S315/00; Y10S315/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
AN ELECTRICAL CAPACITOR COMPRISING, IN COMBINATION, A SEALED CASING, A CONVOLUTELY WOUND COMPACT ROLL IN SAID CASING FORMED OF AT LEAST TWO CONDUCTING STRIP-SHAPED ELECTRODES INTERWOUND WITH INTERPOSED DIELECTRIC SPACER MATERIAL, SAID ELECTRODES HAVING INNER ENDS NEAR THE AXIS OF THE ROLL, AND THERMAL FUSE MEANS FOR DISCONTINUING THE OPERATION OF THE CAPACITOR PRIOR TO RUPTURE OF SAID CASING DUE TO ELEVATED TEMPERATURE WITHIN SAID ROLL, SAID THERMAL FUSE MEANS COMPRISING A THERMALLY FUSIBLE MEMBER COMPOSED OF ELECTRICALLY CONDUCTING MATERIAL HAVING A MELTING POINT OF ABOUT 190*-250*C. AND CONNECTED IN SERIES WITH ONE OF SAID ELECTRODES IN THE REGION OF SAID ROLL DEFINED BY THE INNERMOST ONE-THIRD OF THE LENGTH OF SAID ONE ELECTRODE.
Claim 2
Dependent Claim
114 words
AN ELECTRICAL CAPACITOR COMPRISING, IN COMBINATION, A SEALED CASING, A CONVOLUTELY WOUND COMPACT ROLL IN SAID CASING FORMED OF AT LEAST TWO CONDUCTING STRIP-SHAPED ELECTRODES INTERWOUND WITH INTERPOSED DIELECTRIC SPACER MATERIAL, SAID ELECTRODES HAVING INNER ENDS NEAR THE AXIS OF THE ROLL, AND THERMAL FUSE MEANS FOR DISCONTINUING THE OPERATION OF THE CAPACITOR PRIOR TO RUPTURE OF SAID CASING DUE TO ELEVATED TEMPERATURE WITHIN SAID ROLL, SAID THERMAL FUSE MEANS COMPRISING A THERMALLY FUSIBLE MEMBER COMPOSED OF ELECTRICALLY CONDUCTING MATERIAL HAVING A MELTING POINT OF ABOUT 190*-250*C. AND CONNECTED IN SERIES WITH ONE OF SAID ELECTRODES IN THE REGION OF SAID ROLL DEFINED BY THE INNERMOST ONE-THIRD OF THE LENGTH OF SAID ONE ELECTRODE.
References Cited (Backward Citations)
US1192879A
Cited
DE605589C
Cited
US2473034A
Cited
US2704341A
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US2851557A
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US2896049A
Cited
US2791736A
Cited
US3021589A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |