US3222433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of casting propellant within a rocket motor casing
Assignee: Individual
•
Filing: 1961-07-18
•
Granted: 1965-12-07
•
Expires: 1981-07-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Nicolas Makay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:09
CPC Classifications
C; C06; C06B; C06B21/00; C06B21/0033; C06B21/0058
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
THE METHOD OF MAKING SOLID PROPELLANT FUEL FILLED ROCKET MOTORS WHICH COMPRISES FILLING A CASING WITH GRANULAR OXIDIZER; APPLYING CLOSURE MEMBERS HAVING PASSAGE MEANS THERETHROUGH TO EACH END OF SAID CASING MADE FROM A MATERIAL CAPABLE OF BEING CHANGED INTO A DIFFERENT PHASE FACILITATING REMOVAL; APPLYING A VACUUM THROUGH ONE OF SAID CLOSURES TO EVACUATE ALL AIR AND GAS BETWEEN SAID GRANULES; WHILE SAID VACUUM IS BEING APPLIED THROUGH SAID ONE CLOSURE, ADMITTING AN UNREACTED POLYMERIZABLE LIQUID FUEL-BINDER THROUGH THE OTHER CLOSURE UNTIL THE INTERSTICES BETWEEN SAID GRANULES ARE COMPLETELY FILLED; HEATING SAID UNREACTED LIQUID FILLED CASING TO A SUFFICIENT TEMPERATURE AND FOR A SUFFICIENT TIME TO EFFECT POLYMERIZATIN OF SAID FUEL-BINDER; AND THEREAFTER SUBJECTING SAID ASSEMBLY TO A CONDITION EFFECTING A PHASE CHANGE OF SAID CLOSURE MEMBERS FOR REMOVING THE SAME.
Claim 2
Independent Claim
132 words
THE METHOD OF MAKING SOLID PROPELLANT FUEL FILLED ROCKET MOTORS WHICH COMPRISES FILLING A CASING WITH GRANULAR OXIDIZER; APPLYING CLOSURE MEMBERS HAVING PASSAGE MEANS THERETHROUGH TO EACH END OF SAID CASING MADE FROM A MATERIAL CAPABLE OF BEING CHANGED INTO A DIFFERENT PHASE FACILITATING REMOVAL; APPLYING A VACUUM THROUGH ONE OF SAID CLOSURES TO EVACUATE ALL AIR AND GAS BETWEEN SAID GRANULES; WHILE SAID VACUUM IS BEING APPLIED THROUGH SAID ONE CLOSURE, ADMITTING AN UNREACTED POLYMERIZABLE LIQUID FUEL-BINDER THROUGH THE OTHER CLOSURE UNTIL THE INTERSTICES BETWEEN SAID GRANULES ARE COMPLETELY FILLED; HEATING SAID UNREACTED LIQUID FILLED CASING TO A SUFFICIENT TEMPERATURE AND FOR A SUFFICIENT TIME TO EFFECT POLYMERIZATIN OF SAID FUEL-BINDER; AND THEREAFTER SUBJECTING SAID ASSEMBLY TO A CONDITION EFFECTING A PHASE CHANGE OF SAID CLOSURE MEMBERS FOR REMOVING THE SAME.
References Cited (Backward Citations)
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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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |