US3756856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible sealing material for energy conversion devices
Assignee: Ford Motor Co
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Filing: 1971-11-02
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Granted: 1973-09-04
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Expires: 1991-11-02
Abstract
Abstract POLYCARBORANE SILOXANES HAVING ABOUT 1.5-2 SILICONE LINKAGES PER POLYMER UNIT PERFORM EFFECTIVELY IN SEALING JUNCTIONS AND OTHER INTERNAL ELEMENTS OF SODIUM SULFUR ENERGY CONVERSION DEVICES. THE SEALING MATERIALS RETAIN SATISFACTORY PROPERTIES AT ELEVATED TEMPERATURES EXCEEDING 300*C. AND CAN BE PLACED IN CONTACT WITH BOTH MOLTEN SODIUM AND MOLTEN SULFUR. ADDING CONSIDERABLE AMOUNTS OF CARBON PARTICLES RENDERS THE SEALING MATERIALS ELECTRICALLY CONDUCTIVE WITHOUT DEPRECIATING SIGNIFICANTLY THE CORROSION RESISTANCE THEREOF TO THE REACTANTS.
Inventors
- 👤 G Tennenhouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:45
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/36; H01M10/39; H01M10/3909; H01M50/00; H01M50/10; H01M50/183; H01M50/186; H01M50/19; H01M50/191; H01M50/193; H01M50/195; H01M50/198; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |