Patent US3178885A successfully refreshed from Google Patents.
US3178885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hybrid rocket engine
Assignee: Lockheed Martin Corp
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Filing: 1961-06-12
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Granted: 1965-04-20
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Expires: 1981-06-12
Abstract
No abstract record available.
Inventors
- 👤 Robert H Loughran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:15
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A HYBRID ROCKET ENGINE UTILIZING A FUEL COMPONENT AND AN OXIDIZER COMPONENT, ONE OF SAID COMPONENTS BEING SOLID AND THE OTHER BEING LIQUID, SAID ENGINE COMPRISING A MOTOR CASE LOADED WITH SAID SOLID COMPONENT AND HAVING A REARWARDLY DIRECTED NOZZLE THROUGH WHICH COMBUSTION PRODUCTS ARE DISCHARGED, A CONTAINER IN WHICH SAID LIQUID COMPONENT IS CONTAINED, AN AUXILIARY GAS GENERATOR MOUNTED ON THE FRONT END OF THE MOTOR CASE AND HAVING A NOZZLE DISCHARGING INTO SAID MOTOR CASE, MEANS FOR PRESSURIZING SAID CONTAINER WITH GAS GENERATED BY SAID AUXILIARY GAS GENERATOR, MEANS FOR CONVEYING SAID LIQUID COMPONENT UNDER PRESSURE FROM SAID CONTAINER TO SAID LASTNAMED NOZZLE AND MEANS INCLUDING SAID LAST-NAMED NOZZLE FOR MIXING SAID LIQUID COMPONENT WITH THE HOT COMBUSTION GASES DISCHARGED BY SAID AUXILIARY GAS GENERATOR, WHEREBY THE SAID LIQUID COMPONENT IS VAPORIZED AS IT IS DISCHARGING INTO SAID MOTOR CASE FOR REACTION WITH SAID SOLID COMPONENT.
Claim 2
Dependent Claim
148 words
A HYBRID ROCKET ENGINE UTILIZING A FUEL COMPONENT AND AN OXIDIZER COMPONENT, ONE OF SAID COMPONENTS BEING SOLID AND THE OTHER BEING LIQUID, SAID ENGINE COMPRISING A MOTOR CASE LOADED WITH SAID SOLID COMPONENT AND HAVING A REARWARDLY DIRECTED NOZZLE THROUGH WHICH COMBUSTION PRODUCTS ARE DISCHARGED, A CONTAINER IN WHICH SAID LIQUID COMPONENT IS CONTAINED, AN AUXILIARY GAS GENERATOR MOUNTED ON THE FRONT END OF THE MOTOR CASE AND HAVING A NOZZLE DISCHARGING INTO SAID MOTOR CASE, MEANS FOR PRESSURIZING SAID CONTAINER WITH GAS GENERATED BY SAID AUXILIARY GAS GENERATOR, MEANS FOR CONVEYING SAID LIQUID COMPONENT UNDER PRESSURE FROM SAID CONTAINER TO SAID LASTNAMED NOZZLE AND MEANS INCLUDING SAID LAST-NAMED NOZZLE FOR MIXING SAID LIQUID COMPONENT WITH THE HOT COMBUSTION GASES DISCHARGED BY SAID AUXILIARY GAS GENERATOR, WHEREBY THE SAID LIQUID COMPONENT IS VAPORIZED AS IT IS DISCHARGING INTO SAID MOTOR CASE FOR REACTION WITH SAID SOLID COMPONENT.
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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) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |