Patent US3389460A successfully refreshed from Google Patents.
US3389460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of bare or pre-insulated metal clad sodium conductor
Assignee: General Cable Corp
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Filing: 1966-07-07
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Granted: 1968-06-25
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Expires: 1986-07-07
Abstract
No abstract record available.
Inventors
- 👤 Rubinstein Solomon
- 👤 Jr George S Eager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:20
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/28; H01R4/50; H01R4/5033; H01B; H01B13/00; H01B7/00; H01B7/0009; H01B7/0036; Y; Y10; Y10S; Y10S174/00; Y10S174/07; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49123
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
THE METHOD OF MAKING A METAL CLAD SODIUM CONDUCTOR WHICH COMPRISES MELTING THE SODIUM AND ESTABLISHING A RESERVOIR OF LIQUID SODIUM, PLACING ONE END OF A PREFORMED ELECTRICALLY CONDUCTIVE TUBE THAT FORMS THE CLADDING FOR THE SODIUM IN COMMUNICATION WITH THE RESERVOIR, HEATING THE TUBE TO ABOVE THE MELTING POINT OF SODIUM, FLOWING SODIUM INTO THE TUBE BY ESTABLISHING A DIFFERENTIAL BETWEEN THE PRESSURE OVER THE SODIUM IN THE RESERVOIR AND THE PRESSURE AT THE OPPOSITE END OF THE TUBE, CONTINUING THE SODIUM FLOW UNTIL THE CLADDING TUBE IS FILLED FOR A PREDETERMINED LENGTH ACROSS THE FULL INSIDE DIAMETER OF THE CLADDING TUBE AND SEALING THE TUBE TO PREVENT ESCAPE OF THE SODIUM.
Claim 2
Independent Claim
113 words
THE METHOD OF MAKING A METAL CLAD SODIUM CONDUCTOR WHICH COMPRISES MELTING THE SODIUM AND ESTABLISHING A RESERVOIR OF LIQUID SODIUM, PLACING ONE END OF A PREFORMED ELECTRICALLY CONDUCTIVE TUBE THAT FORMS THE CLADDING FOR THE SODIUM IN COMMUNICATION WITH THE RESERVOIR, HEATING THE TUBE TO ABOVE THE MELTING POINT OF SODIUM, FLOWING SODIUM INTO THE TUBE BY ESTABLISHING A DIFFERENTIAL BETWEEN THE PRESSURE OVER THE SODIUM IN THE RESERVOIR AND THE PRESSURE AT THE OPPOSITE END OF THE TUBE, CONTINUING THE SODIUM FLOW UNTIL THE CLADDING TUBE IS FILLED FOR A PREDETERMINED LENGTH ACROSS THE FULL INSIDE DIAMETER OF THE CLADDING TUBE AND SEALING THE TUBE TO PREVENT ESCAPE OF THE SODIUM.
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) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |