US3224189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid rocket propellant feed system
Assignee: Lockheed Martin Corp
•
Filing: 1963-05-31
•
Granted: 1965-12-21
•
Expires: 1983-05-31
Abstract
No abstract record available.
Inventors
- 👤 Richard J Kenny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:59
CPC Classifications
B; B64; B64G; B64G1/00; B64G1/22; B64G1/40; B64G1/402; F; F02; F02K; F02K9/00; F02K9/42; F02K9/44; F02K9/56; F02K9/563; B64G1/401
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
112 words
A METHOD FOR STARTING A LIQUID PROPELLED ROCKET ENGINE IN A SUBSTANTIALLY ZERO GRAVITY ENVIRONMENT WHICH COMPRISES THE STEPS OF SEPARATING VAPORS FROM THE LIQUIDS IN THE FUEL AND OXIDANT LIQUID SUPPLY CONTAINERS, FEEDING THE SEPARATED VAPORS TO A ROCKET FUEL COMBUSTION CHAMBER, IGNITING THE VAPORS IN THE COMBUSTION CHAMBER TO PRODUCE A THRUST, UTILIZING SAID THRUST TO BOTTOM THE LIQUID FUEL AND LIQUID OXIDANT IN THEIR RESPECTIVE CONTAINERS, TIMING THE COMBUSTION OF SAID VAPORS AND SWITCHING THE COMBUSTION CHAMBER FROM THE TEMPORARY COMBUSTION OF VAPORS TO THE NORMAL COMBUSTION OF LIQUID FUEL AND OXIDANT AFTER SUFFICIENT TIME HAS ELAPSED TO BOTTOM SAID LIQUID FUEL AND LIQUID OXIDANT IN THEIR RESPECTIVE CONTAINERS.
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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |