Patent US2938330A successfully refreshed from Google Patents.
US2938330A
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US
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Rocket propellant and method for operating a rocket motor or the like
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1954-07-21
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Granted: 1960-05-31
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Expires: 1974-07-21
Abstract
No abstract record available.
Inventors
- 👤 John J Kolfenbach
- 👤 Richard F Finn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:37
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; F02K9/425; Y; Y10; Y10S; Y10S149/00; Y10S149/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
IN THE OPERATION OF A ROCKET ENGINE WHEREIN A NITRIC ACID OXIDIZER AND A HYDROCARBON POLYMER SELECTED FROM THE GROUP CONSISTING OF DICYCLOPENTADIENE, METHYLATED DICYCLOPENTADIENE, BUTADIENE DIMER AND BUTADIENE-ISOPRENE CODIMER ARE INTRODUCED INTO THE COMBUSTION CHAMBER OF THE ENGINE AND REACTED TO FORM THRUST-PRODUCING GASES, THE IMPROVEMENT WHICH COMPRISES INTRODUCING INTO SAID COMBUSTION CHAMBER WITH SAID POLYMER FROM ABOUT 2% TO ABOUT 20% BY WEIGHT, BASED ON THE POLYMER, OF A CONJUGATED DIOLEFIN SELECTED FROM THE GROUP CONSISTING OF BUTADIENE, ISOPRENE, CYCLOPENTADIENE AND PIPERYLENE.
Claim 2
Dependent Claim
84 words
IN THE OPERATION OF A ROCKET ENGINE WHEREIN A NITRIC ACID OXIDIZER AND A HYDROCARBON POLYMER SELECTED FROM THE GROUP CONSISTING OF DICYCLOPENTADIENE, METHYLATED DICYCLOPENTADIENE, BUTADIENE DIMER AND BUTADIENE-ISOPRENE CODIMER ARE INTRODUCED INTO THE COMBUSTION CHAMBER OF THE ENGINE AND REACTED TO FORM THRUST-PRODUCING GASES, THE IMPROVEMENT WHICH COMPRISES INTRODUCING INTO SAID COMBUSTION CHAMBER WITH SAID POLYMER FROM ABOUT 2% TO ABOUT 20% BY WEIGHT, BASED ON THE POLYMER, OF A CONJUGATED DIOLEFIN SELECTED FROM THE GROUP CONSISTING OF BUTADIENE, ISOPRENE, CYCLOPENTADIENE AND PIPERYLENE.
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) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |