US3144751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hybrid rocket
Assignee: RTX Corp
•
Filing: 1961-05-10
•
Granted: 1964-08-18
•
Expires: 1981-05-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Arthur W Blackman
- 👤 Charles R Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:00
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/70; F02K9/42; F02K9/44; F02K9/56; F02K9/60; F02K9/62; F02K9/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
IN A HYBRID ROCKET POWERPLANT HAVING A SOLID PROPELLANT AND A SOURCE OF LIQUID PROPELLANT, MEANS FOR DIVIDING A SOLID PROPELLANT INTO SYMMETRICALSEGMENTS ABOUT THE AXIS OF THE POWERPLANT, REACTION MEANS IN THE EXHAUST STREAM FROM EACH OF THE SEGMENTS, AND MEANS FOR VARYING THE FLOW OF LIQUID PROPELLANT THROUGH EACH OF SAID SEGMENTS FRO VARYING THE REACTION RATE OF PROPELLANTS IN ONE SEGMENT WITH RESPECT TO ANOTHER OF SAID SEGMENTS AND THEREBY VARYING THE RESULTANT FORCES ON THE RESPECTIVE REACTION MEANS.
Claim 2
Dependent Claim
82 words
IN A HYBRID ROCKET POWERPLANT HAVING A SOLID PROPELLANT AND A SOURCE OF LIQUID PROPELLANT, MEANS FOR DIVIDING A SOLID PROPELLANT INTO SYMMETRICALSEGMENTS ABOUT THE AXIS OF THE POWERPLANT, REACTION MEANS IN THE EXHAUST STREAM FROM EACH OF THE SEGMENTS, AND MEANS FOR VARYING THE FLOW OF LIQUID PROPELLANT THROUGH EACH OF SAID SEGMENTS FRO VARYING THE REACTION RATE OF PROPELLANTS IN ONE SEGMENT WITH RESPECT TO ANOTHER OF SAID SEGMENTS AND THEREBY VARYING THE RESULTANT FORCES ON THE RESPECTIVE REACTION MEANS.
References Cited (Backward Citations)
US2906094A
Cited
US2923126A
Cited
US3017743A
Cited
US2979891A
Cited
US2996880A
Cited
US2984973A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |