US2704437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of submarine propulsion
Assignee: Individual
•
Filing: 1947-10-03
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Granted: 1955-03-22
•
Expires: 1967-10-03
Abstract
No abstract record available.
Inventors
- 👤 Alfred M Thomsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:04
CPC Classifications
B; B63; B63G; B63G8/00; B63G8/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
THE METHOD OF POWER GENERATION WHICH COMPRISES; HEATING THE WORKING FLUID OF A PRIME MOVER BY COMMINGLING THEREWITH A LIGHT METAL, SELECTED FROM THE GROUP OF METALS HAVING A SPECIFIC GRAVITY BELOW 2.8 AND THUS CONTAINING ALUMINUM AND MAGNESIUM AND OXYGEN; SEPARATING THE OXIDE PRODUCED THEREBY; EXPANDING THE HEATED FLUID IN A PRIME MOVER THUS LOWERING ITS TEMPERATURE; ABSTRACTING A FURTHER PORTION OF HEAT STILL RESIDENT IN THE EXPANDED FLUID BY STORING SAME IN A HEAT ACCUMULATOR; RECOMPRESSING THE FLUID TO ITS INITIAL PRESSURE; REHEATING SAME BY CONVEYANCE OF THE HEAT PREVIOUSLY STORED; RESTORING THE FLUID TO THE INITIAL TEMPERATURE BY FURTHER COMBUSTION THEREIN OF COMMINGLED OXYGEN AND METAL THUS RECYCLING THE WORKING FLUID SUBSTANTIALLY UNCHANGED.
Claim 2
Independent Claim
116 words
THE METHOD OF POWER GENERATION WHICH COMPRISES; HEATING THE WORKING FLUID OF A PRIME MOVER BY COMMINGLING THEREWITH A LIGHT METAL, SELECTED FROM THE GROUP OF METALS HAVING A SPECIFIC GRAVITY BELOW 2.8 AND THUS CONTAINING ALUMINUM AND MAGNESIUM AND OXYGEN; SEPARATING THE OXIDE PRODUCED THEREBY; EXPANDING THE HEATED FLUID IN A PRIME MOVER THUS LOWERING ITS TEMPERATURE; ABSTRACTING A FURTHER PORTION OF HEAT STILL RESIDENT IN THE EXPANDED FLUID BY STORING SAME IN A HEAT ACCUMULATOR; RECOMPRESSING THE FLUID TO ITS INITIAL PRESSURE; REHEATING SAME BY CONVEYANCE OF THE HEAT PREVIOUSLY STORED; RESTORING THE FLUID TO THE INITIAL TEMPERATURE BY FURTHER COMBUSTION THEREIN OF COMMINGLED OXYGEN AND METAL THUS RECYCLING THE WORKING FLUID SUBSTANTIALLY UNCHANGED.
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) | 1958-03-21 | 1958-09-20 | 1959-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-21 | 1962-09-20 | 1963-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-21 | 1966-09-20 | 1967-03-22 | $7700.00 | Window Closed / Lapsed |