Patent US3393493A successfully refreshed from Google Patents.
Patent US3192289A successfully refreshed from Google Patents.
US3192289A
Expired / Lapsed
US
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Method of casting solid propellant rocket motors
Assignee: Individual
•
Filing: 1963-08-30
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Granted: 1965-06-29
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Expires: 1983-08-30
Abstract
No abstract record available.
Inventors
- 👤 Leonard T Jagiello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:54
CPC Classifications
C; C06; C06B; C06B21/00; C06B21/0008; C06B21/0025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
AN IMPROVED PROCESS FOR CASTING COMPOSITE PROPELLANT GRAINS WHICH COMPRISES (A) BLENDING AN INORGANIC OXIDIZER WITH A METAL POWDER TO FORM A DRY OXIDIZER-METAL MIXTURE; (B) MIXING SAID DRY MIXTURE INTO A BINDER-FUEL AND CURING AGENT UNTIL A MIXTURE FORMS; (C) POURING SAID VISCOUS MIXTURE AT AN ELEVATED TEMPERATURE INTO A ROCKET MOTOR HAVING A CENTRALLY POSITIONED MANDREL; (D) SPINNING SAID MOTOR ABOUT ITS LONG AXIS UNTIL A SUBSTANTIAL PART OF THE METAL IN SAID MIXTURE MIGRATES AWAY FROM THE CENTER OF THE MOTOR DUE TO CENTRIFUGAL FORCE; (E) CURING SAID MOTOR FOR A PREDETERMINED TIME AT AN ELEVATED TEMPERATURE.
Claim 2
Dependent Claim
100 words
AN IMPROVED PROCESS FOR CASTING COMPOSITE PROPELLANT GRAINS WHICH COMPRISES (A) BLENDING AN INORGANIC OXIDIZER WITH A METAL POWDER TO FORM A DRY OXIDIZER-METAL MIXTURE; (B) MIXING SAID DRY MIXTURE INTO A BINDER-FUEL AND CURING AGENT UNTIL A MIXTURE FORMS; (C) POURING SAID VISCOUS MIXTURE AT AN ELEVATED TEMPERATURE INTO A ROCKET MOTOR HAVING A CENTRALLY POSITIONED MANDREL; (D) SPINNING SAID MOTOR ABOUT ITS LONG AXIS UNTIL A SUBSTANTIAL PART OF THE METAL IN SAID MIXTURE MIGRATES AWAY FROM THE CENTER OF THE MOTOR DUE TO CENTRIFUGAL FORCE; (E) CURING SAID MOTOR FOR A PREDETERMINED TIME AT AN ELEVATED TEMPERATURE.
References Cited (Backward Citations)
US1896973A
Cited
US2248098A
Cited
US2773287A
Cited
US2887728A
Cited
US3017670A
Cited
US3049043A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |