US2778189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid hydrocarbon rocket fuel
Assignee: Standard Oil Co
•
Filing: 1951-12-17
•
Granted: 1957-01-22
•
Expires: 1971-12-17
Abstract
No abstract record available.
Inventors
- 👤 Don R Carmody
- 👤 Zletz Alex
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:47
CPC Classifications
C; C10; C10L; C10L1/00; C06; C06B; C06B47/00; C06B47/02; C06B47/04; Y; Y10; Y10S; Y10S149/00; Y10S149/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
198 words
A METHOD OF GENERATING GAS, WHICH METHOD COMPRISES INJECTING SEPARATELY AND ESSENTIALLY SIMULTANEOUSLY INTO THE COMBUSTION CHAMBER OF THE GAS GENERATOR (1) A HYPERGOLIC LIQUID HYDROCARBON FUEL, WHICH FEEL IS DERIVED FROM THE LIQUID PRODUCT OF THE PRYLOYSIS OF A HYDROCARBON SELECTED FROM THE CLASS CONSISTING OF ETHANE, PROPANE, BUTANE, PROPYLENE, BUTYLENE, NAPPTHAS, AND GAS OILS, IN THE VAPOR PHASE AT A TEMPERATURE BETWEEN ABOUT 1250* AND 1800*F., AT A CRACKING ZONE PRESSURE OF NOT MORE THAN 100 P.S.I.A., FOR A CRACKING ZONE RESIDENCE TIME BETWEEN ABOUT 0.05 AND 5 SECONDS, SEPARATING A LIQUID PRODUCT FROM OTHER CRACKING PRODUCTS, DISTILLING SAID LIQUID PRODUCT TO OBTAIN A LIGHT OIL BOILING OVER THE RANGE OF 100* AN 400*F., CHILLING SAID OIL TO A TEMPERATURE OF AT LEAST ABOUT -70* F. FOR A TIME SUFFICIENT TO FORM A SEPARATE SOLID PHASE AND REMOVING SAID PHASE TO OBTAIN SAID LIQUID HYPERGOLIC FUEL, WHICH FUEL IS CHARACTERIZED BY A FREEZING POINT OF AT LEAST ABOUT -70*F., AND (2) A NITRIC ACID OXIDIZER CONTAINING NOT MORE THAN 5 WEIGHT PERCENT OF NON-ACIDIC MATERIALS, IN AN AMOUNT AND AT A RATE SUFFICIENT TO INITIATE A HYPERGOLIC REACTION WITH AND TO SUPPORT COMBUSTION OF THE FUEL.
Claim 2
Independent Claim
198 words
A METHOD OF GENERATING GAS, WHICH METHOD COMPRISES INJECTING SEPARATELY AND ESSENTIALLY SIMULTANEOUSLY INTO THE COMBUSTION CHAMBER OF THE GAS GENERATOR (1) A HYPERGOLIC LIQUID HYDROCARBON FUEL, WHICH FEEL IS DERIVED FROM THE LIQUID PRODUCT OF THE PRYLOYSIS OF A HYDROCARBON SELECTED FROM THE CLASS CONSISTING OF ETHANE, PROPANE, BUTANE, PROPYLENE, BUTYLENE, NAPPTHAS, AND GAS OILS, IN THE VAPOR PHASE AT A TEMPERATURE BETWEEN ABOUT 1250* AND 1800*F., AT A CRACKING ZONE PRESSURE OF NOT MORE THAN 100 P.S.I.A., FOR A CRACKING ZONE RESIDENCE TIME BETWEEN ABOUT 0.05 AND 5 SECONDS, SEPARATING A LIQUID PRODUCT FROM OTHER CRACKING PRODUCTS, DISTILLING SAID LIQUID PRODUCT TO OBTAIN A LIGHT OIL BOILING OVER THE RANGE OF 100* AN 400*F., CHILLING SAID OIL TO A TEMPERATURE OF AT LEAST ABOUT -70* F. FOR A TIME SUFFICIENT TO FORM A SEPARATE SOLID PHASE AND REMOVING SAID PHASE TO OBTAIN SAID LIQUID HYPERGOLIC FUEL, WHICH FUEL IS CHARACTERIZED BY A FREEZING POINT OF AT LEAST ABOUT -70*F., AND (2) A NITRIC ACID OXIDIZER CONTAINING NOT MORE THAN 5 WEIGHT PERCENT OF NON-ACIDIC MATERIALS, IN AN AMOUNT AND AT A RATE SUFFICIENT TO INITIATE A HYPERGOLIC REACTION WITH AND TO SUPPORT COMBUSTION OF THE FUEL.
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) | 1960-01-22 | 1960-07-23 | 1961-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-22 | 1964-07-23 | 1965-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-22 | 1968-07-23 | 1969-01-22 | $7700.00 | Window Closed / Lapsed |