US3579412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid impervious barrier including liquid metal alloy and method of making same
Assignee: National Aeronautics and Space Administration
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Filing: 1968-05-29
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Granted: 1971-05-18
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Expires: 1988-05-29
Abstract
Abstract A FLEXIBLE BARRIER MEMBRANE COMPRISING A POROUS SUBSTRATE AND INCORPORATED LIQUID METAL PROVIDES STRUCTURES HIGHLY IMPERVIOUS TO GASES AND LIQUIDS, AND SELF-SEALING TO SMALL PUNCTURES. FABRICS OR METAL OR SYNTHETIC TEXTILE ARE IMPREGNATED WITH LOW MELTING ALLOYS, SUCH AS ALLOYS OF GALLIUM OF INDIUM METAL, AND USED AS SEALANT BARRIERS FOR SPACECRAFT WALLS AND AS FLEXIBLE MEMBRANE BARRIERS FOR PUMPING LIQUID PROPELLANTS. D R A W I N G
Inventors
- 👤 Albert J Bauman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:09
CPC Classifications
C; C23; C23C; C23C28/00; C23C2/00; C23C2/02; C23C2/024; C23C6/00; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/239; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/109; Y10T442/11
Claims Analysis
Total Claims: 0
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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) | 1974-05-17 | 1974-11-16 | 1975-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-17 | 1978-11-16 | 1979-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-17 | 1982-11-16 | 1983-05-18 | $7700.00 | Window Closed / Lapsed |