US2938330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocket propellant and method for operating a rocket motor or the like
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1954-07-21
•
Granted: 1960-05-31
•
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
2026-11-04 23:47
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)
US2636056A
Cited
US2573471A
Cited
US2489051A
Cited
US2636054A
Cited
US2712497A
Cited
US2707716A
Cited
US2842936A
Cited
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 |