Patent US2993335A successfully refreshed from Google Patents.
US2993335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction motor fuel
Assignee: Phillips Petroleum Co
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Filing: 1956-09-13
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Granted: 1961-07-25
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Expires: 1976-09-13
Abstract
No abstract record available.
Inventors
- 👤 Joe M Burton
- 👤 Homer M Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:09
CPC Classifications
C; C06; C06B; C06B47/00; C06B47/02; C06B47/08; C06B43/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
IN THE METHOD FOR DEVELOPING THRUST BY THE COMBUSTION OF BIPROPELLANT COMPONENTS IN A COMBUSTION CHAMBER OF A REACTION MOTOR, THE STEPS COMPRISING SEPARATELY AND SIMULTANEOUSLY INJECTING A STREAM OF AN OXIDANT COMPONENT AND A STREAM OF A FUEL COMPONENT INTO A COMBUSTION CHAMBER OF SAID MOTOR IN PROPORTIONS, BASED ON STOICHIOMETRIC AMOUNTS, WITHIN THE RANGE OF 0.5:1 TO 1.5:1, SAID FUEL COMPONENT CONSISTING ESSENTIALLY OF A HETEROCYCLIC NITROGEN CONTAINING COMPOUND SELECTED FROM THE GROUP CONSISTING OF PYRROLE AND N-METHYL PYRROLE, AND A SECOND COMPOUND SELECTED FROM THE GROUP CONSISTING OF HYDRAZINE AND N,N,N'',N''-TETRAMETHYL PROPANE-1,3-DIAMINE, WHEREIN: WHEN SAID HYDRAZINE IS PRESENT IN SAID FUEL COMPONENT IT IS PRESENT IN AN AMOUNT WITHIN THE RANGES OF ABOUT 0.5 TO 16 PERCENT INCLUSIVE AND ABOUT 36 TO 53 PERCENT INCLUSIVE, AND WHEN SAID DIAMINE IS PRESENT IN SAID FUEL COMPONENT IT IS PRESENT IN AN AMOUNT WITHIN THE RANGE OF ABOUT 0.1 TO ABOUT 5 PERCENT.
Claim 2
Dependent Claim
154 words
IN THE METHOD FOR DEVELOPING THRUST BY THE COMBUSTION OF BIPROPELLANT COMPONENTS IN A COMBUSTION CHAMBER OF A REACTION MOTOR, THE STEPS COMPRISING SEPARATELY AND SIMULTANEOUSLY INJECTING A STREAM OF AN OXIDANT COMPONENT AND A STREAM OF A FUEL COMPONENT INTO A COMBUSTION CHAMBER OF SAID MOTOR IN PROPORTIONS, BASED ON STOICHIOMETRIC AMOUNTS, WITHIN THE RANGE OF 0.5:1 TO 1.5:1, SAID FUEL COMPONENT CONSISTING ESSENTIALLY OF A HETEROCYCLIC NITROGEN CONTAINING COMPOUND SELECTED FROM THE GROUP CONSISTING OF PYRROLE AND N-METHYL PYRROLE, AND A SECOND COMPOUND SELECTED FROM THE GROUP CONSISTING OF HYDRAZINE AND N,N,N'',N''-TETRAMETHYL PROPANE-1,3-DIAMINE, WHEREIN: WHEN SAID HYDRAZINE IS PRESENT IN SAID FUEL COMPONENT IT IS PRESENT IN AN AMOUNT WITHIN THE RANGES OF ABOUT 0.5 TO 16 PERCENT INCLUSIVE AND ABOUT 36 TO 53 PERCENT INCLUSIVE, AND WHEN SAID DIAMINE IS PRESENT IN SAID FUEL COMPONENT IT IS PRESENT IN AN AMOUNT WITHIN THE RANGE OF ABOUT 0.1 TO ABOUT 5 PERCENT.
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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) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |