US3234729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hybrid rocket motor process using solid and liquid phases
Assignee: RTX Corp
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Filing: 1963-04-09
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Granted: 1966-02-15
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Expires: 1983-04-09
Abstract
No abstract record available.
Inventors
- 👤 Altman David
- 👤 Barnet R Adelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:22
CPC Classifications
C; C06; C06D; C06D5/00; C06D5/10; F; F02; F02K; F02K9/00; F02K9/42; F02K9/60; F02K9/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
284 words
IN THE PROCESS OF CREATING THRUST IN A HYBIRD ROCKET ENGINE COMPRISING: (A) PROVIDING A SOLID PHASE AND A LIQUID PHASE, SAID SOLID PHASE BEING INCAPABLE OF SELF-COMBUSTION, AND SAID LIQUID PHASE CONSISTING ESSENTIALLY OF (1) A LIQUID COMPONENT IN ADMIXTURE WITH (2) A PREDETERMINED QUANTITY OF ADDITIVE WHICH IS NON-HYPERGOLIC TO SAID LIQUID COMPONENT AT A FIRST PREDETERMINED TEMPERATURE BUT HYPERGOLIC TO SAID LIQUID COMPONENT AT A HIGHER, SECOND PREDETERMINED TEMPERATURE, SAID ADDITIVE BEING IN SUFFICIENT QUANTITY SO AS TO REACT AT SAID SECOND PREDETERMINED TEMPERATURE WITH A RELATIVELY SMALL PORTION OF SAID LIQUID COMPONENT SO AS TO PRODUCE SUFFICIENT HEAT AND ENERGY TO SUBSTANTIALLY FRAGMENTIZE AND VOLATILIZE THE REMAINING LIQUID COMPONENT; (B) STORING SAID LIQUID PHASE AT SAID FIRST PREDETERMINED TEMPERATURE; (C) PLACING SAID SOLID PHASE INSIDE A COMBUSTION CHAMBER; (D) INJECTING A PREDETERMINED AMOUNT OF SAID LIQUID PHASE INTO THE COMBUSTION CHAMBER, SAID COMBUSTION CHAMBER HAVING A TEMPERATURE ZONE AT A PREDETERMINED DISTANCE FROM THE SURFACE OF SAID SOLID, SAID ZONE HAVING A TEMPERATURE AT LEAST EQUAL TO SAID SECOND PREDETERMINED TEMPERATURE, SAID PREDETERMINED AMOUNT OF SAID LIQUID PHASE PASSING THROUGH SAID ZONE THEREBY HEATING THE LIQUID PHASE TO SAID SECOND PREDETERMINED TEMPERATURE CAUSING SAID ADDITIVE AND A RELATIVELY SMALL PORTION OF SAID LIQUID COMPONENT OF SAID PREDETERMINED AMOUNT OF SAID LIQUID PHASE TO REACT VIGOROUSLY THEREBY CAUSING THE REMAINING LIQUID COMPONENT OF SAID PREDETERMINED AMOUNT OF SAID LIQUID PHASE TO SUBSTANTIALLY FRAGMENTIZE AND VOLATILIZE PRIOR TO CONTACT WITH THE SOLID PHASE OF THE HYBIRD ENGINE; (E) REACTING THE SUBSTANTIALLY FRAGMENTIZED AND VOLATILIZED LIQUID COMPONENT WITH SAID SOLID PHASE TO PRODUCE HOT COMBUSTION GASES: AND (F) EJECTING THE HOT COMBUSTION GASES FROM SAID COMBUSTION CHAMBER THEREBY IMPARTING THRUST TO THE ENGINE.
Claim 2
Dependent Claim
284 words
IN THE PROCESS OF CREATING THRUST IN A HYBIRD ROCKET ENGINE COMPRISING: (A) PROVIDING A SOLID PHASE AND A LIQUID PHASE, SAID SOLID PHASE BEING INCAPABLE OF SELF-COMBUSTION, AND SAID LIQUID PHASE CONSISTING ESSENTIALLY OF (1) A LIQUID COMPONENT IN ADMIXTURE WITH (2) A PREDETERMINED QUANTITY OF ADDITIVE WHICH IS NON-HYPERGOLIC TO SAID LIQUID COMPONENT AT A FIRST PREDETERMINED TEMPERATURE BUT HYPERGOLIC TO SAID LIQUID COMPONENT AT A HIGHER, SECOND PREDETERMINED TEMPERATURE, SAID ADDITIVE BEING IN SUFFICIENT QUANTITY SO AS TO REACT AT SAID SECOND PREDETERMINED TEMPERATURE WITH A RELATIVELY SMALL PORTION OF SAID LIQUID COMPONENT SO AS TO PRODUCE SUFFICIENT HEAT AND ENERGY TO SUBSTANTIALLY FRAGMENTIZE AND VOLATILIZE THE REMAINING LIQUID COMPONENT; (B) STORING SAID LIQUID PHASE AT SAID FIRST PREDETERMINED TEMPERATURE; (C) PLACING SAID SOLID PHASE INSIDE A COMBUSTION CHAMBER; (D) INJECTING A PREDETERMINED AMOUNT OF SAID LIQUID PHASE INTO THE COMBUSTION CHAMBER, SAID COMBUSTION CHAMBER HAVING A TEMPERATURE ZONE AT A PREDETERMINED DISTANCE FROM THE SURFACE OF SAID SOLID, SAID ZONE HAVING A TEMPERATURE AT LEAST EQUAL TO SAID SECOND PREDETERMINED TEMPERATURE, SAID PREDETERMINED AMOUNT OF SAID LIQUID PHASE PASSING THROUGH SAID ZONE THEREBY HEATING THE LIQUID PHASE TO SAID SECOND PREDETERMINED TEMPERATURE CAUSING SAID ADDITIVE AND A RELATIVELY SMALL PORTION OF SAID LIQUID COMPONENT OF SAID PREDETERMINED AMOUNT OF SAID LIQUID PHASE TO REACT VIGOROUSLY THEREBY CAUSING THE REMAINING LIQUID COMPONENT OF SAID PREDETERMINED AMOUNT OF SAID LIQUID PHASE TO SUBSTANTIALLY FRAGMENTIZE AND VOLATILIZE PRIOR TO CONTACT WITH THE SOLID PHASE OF THE HYBIRD ENGINE; (E) REACTING THE SUBSTANTIALLY FRAGMENTIZED AND VOLATILIZED LIQUID COMPONENT WITH SAID SOLID PHASE TO PRODUCE HOT COMBUSTION GASES: AND (F) EJECTING THE HOT COMBUSTION GASES FROM SAID COMBUSTION CHAMBER THEREBY IMPARTING THRUST TO THE ENGINE.
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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |