US3381473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High energy fuel systems
Assignee: RTX Corp
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Filing: 1964-06-22
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Granted: 1968-05-07
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Expires: 1984-06-22
Abstract
No abstract record available.
Inventors
- 👤 Donald K Kuehl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:19
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/12; C06; C06B; C06B33/00; C06B45/00; C06B45/18; C06B45/30; C10L1/1208; C10L1/1216; C10L1/1233
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
IN A METHOD OF OPERATING A JET COMBUSTION ENGINE, WHEREIN FUEL COMPRISING METAL AS A COMPONENT IS BURNED IN A COMBUSTION CHAMBER AND THE COMBUSTION PRODUCT ADMIXTURE IS ALLOWED TO ESCAPE THROUGH A JET, THEREBY PRODUCING A DRIVING FORCE, THE IMPROVEMENT WHICH COMPRISES UTILIZING, AS THE METAL COMPONENT, A METAL WHICH FORMS AN OXIDE HAVING A MELTING POINT ABOVE THE MELTING POINT OF THE METAL, THE SURFACE OF SAID METAL COMPRISING A MIXTURE OF ELEMENTS, SAID MIXTURE OF ELEMENTS BEING CAPABLE OF FORMING, UPON OXIDATION, A EUTECTIC COMPOSITION OF MIXED OXIDES OF SAID ELEMENTS WHICH HAS A MELTING POINT BELOW THE MELTING POINT OF THE OXIDE OF SAID METAL SAID EUTECTIC COMPOSITION BEING CHARACTERIZED BY THE ABILITY TO PROTECT SAID CORE METAL AT ROOM TEMPERATURE UNDER ORDINARY CONDITIONS OF STORAGE, AND BEING ITSELF STABLE UNDER THE AFORESAID CONDITIONS.
Claim 2
Dependent Claim
138 words
IN A METHOD OF OPERATING A JET COMBUSTION ENGINE, WHEREIN FUEL COMPRISING METAL AS A COMPONENT IS BURNED IN A COMBUSTION CHAMBER AND THE COMBUSTION PRODUCT ADMIXTURE IS ALLOWED TO ESCAPE THROUGH A JET, THEREBY PRODUCING A DRIVING FORCE, THE IMPROVEMENT WHICH COMPRISES UTILIZING, AS THE METAL COMPONENT, A METAL WHICH FORMS AN OXIDE HAVING A MELTING POINT ABOVE THE MELTING POINT OF THE METAL, THE SURFACE OF SAID METAL COMPRISING A MIXTURE OF ELEMENTS, SAID MIXTURE OF ELEMENTS BEING CAPABLE OF FORMING, UPON OXIDATION, A EUTECTIC COMPOSITION OF MIXED OXIDES OF SAID ELEMENTS WHICH HAS A MELTING POINT BELOW THE MELTING POINT OF THE OXIDE OF SAID METAL SAID EUTECTIC COMPOSITION BEING CHARACTERIZED BY THE ABILITY TO PROTECT SAID CORE METAL AT ROOM TEMPERATURE UNDER ORDINARY CONDITIONS OF STORAGE, AND BEING ITSELF STABLE UNDER THE AFORESAID CONDITIONS.
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) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |