Patent US3083257A successfully refreshed from Google Patents.
US3083257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid-insulated electric cables
Assignee: Anaconda Wire and Cable Co
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Filing: 1959-09-23
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Granted: 1963-03-26
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Expires: 1979-09-23
Abstract
No abstract record available.
Inventors
- 👤 Glenn E Andrews
- 👤 Iii George Feick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:29
CPC Classifications
H; H02; H02G; H02G15/00; H02G15/20; H02G15/26; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
IN AN ELECTRIC POWER CABLE WHICH INCLUDES AN EXTENDED OUTER ENCLOSURE MEMBER AND A DIELECTRIC LIQUID CONTAINED WITHIN SAID OUTER ENCLOSURE MEMBER, MEANS FOR CIRCULATING SAID LIQUID THROUGH SAID ENCLOSURE MEMBER COMPRISING AN EXTERIOR SOURCE OF SAID LIQUID, AN INLET CONDUIT LEADING FROM SAID SOURCE AND COMMUNICATING WITH THE INTERIOR OF SAID ENCLOSURE MEMBER, AN INLET CHECK VALVE IN SAID INLET CONDUIT PERMITTING UNIDIRECTIONAL FLOW OF SAID LIQUID FROM SAID SOURCE INTO SAID ENCLOSURE MEMBER, AN OUTLET CONDUIT COMMUNICATING WITH THE INTERIOR OF SAID ENCLOSURE MEMBER AT A POINT REMOTE FROM THE POINT WHERE SAID INLET CONDUIT COMMUNICATES THEREWITH, AND AN OUTLET CHECK VALVE IN SAID OUTLET CONDUIT PERMITTING UNIDIRECTIONAL FLOW OF SAID LIQUID OUT OF SAID ENCLOSURE MEMBER, WHEREBY VARIATIONS IN THE TEMPERATURE OF SAID CABLE DURING OPERATION CAUSE CONTRACTION AND EXPANSION OF THE LIQUID THEREWITHIN AND ALTERNATELY DRAW THE LIQUID INTO AND FORCE IT OUT OF SAID ENCLOSURE MEMBER THROUGH SAID INLET AND OUTLET CHECK VALVES RESPECTIVELY.
Claim 2
Dependent Claim
159 words
IN AN ELECTRIC POWER CABLE WHICH INCLUDES AN EXTENDED OUTER ENCLOSURE MEMBER AND A DIELECTRIC LIQUID CONTAINED WITHIN SAID OUTER ENCLOSURE MEMBER, MEANS FOR CIRCULATING SAID LIQUID THROUGH SAID ENCLOSURE MEMBER COMPRISING AN EXTERIOR SOURCE OF SAID LIQUID, AN INLET CONDUIT LEADING FROM SAID SOURCE AND COMMUNICATING WITH THE INTERIOR OF SAID ENCLOSURE MEMBER, AN INLET CHECK VALVE IN SAID INLET CONDUIT PERMITTING UNIDIRECTIONAL FLOW OF SAID LIQUID FROM SAID SOURCE INTO SAID ENCLOSURE MEMBER, AN OUTLET CONDUIT COMMUNICATING WITH THE INTERIOR OF SAID ENCLOSURE MEMBER AT A POINT REMOTE FROM THE POINT WHERE SAID INLET CONDUIT COMMUNICATES THEREWITH, AND AN OUTLET CHECK VALVE IN SAID OUTLET CONDUIT PERMITTING UNIDIRECTIONAL FLOW OF SAID LIQUID OUT OF SAID ENCLOSURE MEMBER, WHEREBY VARIATIONS IN THE TEMPERATURE OF SAID CABLE DURING OPERATION CAUSE CONTRACTION AND EXPANSION OF THE LIQUID THEREWITHIN AND ALTERNATELY DRAW THE LIQUID INTO AND FORCE IT OUT OF SAID ENCLOSURE MEMBER THROUGH SAID INLET AND OUTLET CHECK VALVES RESPECTIVELY.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |