Patent US3158993A successfully refreshed from Google Patents.
US3158993A
Expired / Lapsed
US
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Solid fuels and formulations
Assignee: Solid Fuels Corp
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Filing: 1959-02-18
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Granted: 1964-12-01
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Expires: 1979-02-18
Abstract
No abstract record available.
Inventors
- 👤 James E Hodgson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:01
CPC Classifications
C; C06; C06B; C06B27/00; C06B45/00; C06B45/04; F; F01; F01D; F01D21/00; F01D21/02; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
117 words
A METHOD OF BURNING A SOLID FUEL SLUG IN A COMBUSTION CHAMBER OF AN ENGINE ADAPTED FOR USE IN UNDERWATER PROPULSION, SAID METHOD COMPRISING (1) HEATING A FUEL SLUG COMPRISING (A) A PLURALITY OF FUEL PARTICLES CONSISTING OF A MEMBER OF THE GROUP CONSISTING OF A METAL CARBIDE AND A METAL HYDRIDE IN WHICH THE METAL IS A MEMBER OF THE GROUP CONSISTING OF LITHIUM, ALUMINUM, MAGNESIUM, BORON, BERYLLIUM AND MIXTURES THEREOF AND (B) A LITHIUM BINDER FOR SAID FUEL PARTICLES, TO A TEMPERATURE ABOVE THE MELTING POINT OF LITHIUM AND BELOW THE MELTING POINT OF SAID FUEL PARTICLES, (2) FEEDING SAID FUEL SLUG INTO SAID COMBUSTION CHAMBER AND (3) BURNING SAID SLUG WITH A LIQUID OXIDIZER.
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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) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |