Patent US2982856A successfully refreshed from Google Patents.
Patent US3133410A successfully refreshed from Google Patents.
US3133410A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burning rate control of solid propellants
Assignee: Phillips Petroleum Co
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Filing: 1960-08-15
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Granted: 1964-05-19
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Expires: 1980-08-15
Abstract
No abstract record available.
Inventors
- 👤 Frank R Gessner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:03
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/08; F02K9/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A ROCKET MOTOR COMPRISING; A CYLINDRICAL COMBUSTION CHAMBER HAVING AN AXIALLY DISPOSED EXHAUST NOZZLE AT ONE END; A PERFORATED GRATE FIXED ACROSS SAID CHAMBER ADJACENT SAID NOZZLE; A DISC OF NON-HEAT CONDUCTING MATERIAL MOVABLY DISPOSED WITHIN SAID CHAMBER BETWEEN SAID GRATE AND SAID NOZZLE WITH A HEAT RADIATING SURFACE THEREOF FACING TOWARD SAID GRATE; A PISTON MEMBER SLIDABLY DISPOSED WITHIN SAID CHAMBER ON THE OTHER SIDE OF SAID GRATE FROM SAID NOZZLE; A GRAIN OF ROCKET PROPELLANT MATERIAL ADAPTED TO BURN ON ONE END ONLY DISPOSED WITHIN SAID
Claim 2
Dependent Claim
88 words
A ROCKET MOTOR COMPRISING; A CYLINDRICAL COMBUSTION CHAMBER HAVING AN AXIALLY DISPOSED EXHAUST NOZZLE AT ONE END; A PERFORATED GRATE FIXED ACROSS SAID CHAMBER ADJACENT SAID NOZZLE; A DISC OF NON-HEAT CONDUCTING MATERIAL MOVABLY DISPOSED WITHIN SAID CHAMBER BETWEEN SAID GRATE AND SAID NOZZLE WITH A HEAT RADIATING SURFACE THEREOF FACING TOWARD SAID GRATE; A PISTON MEMBER SLIDABLY DISPOSED WITHIN SAID CHAMBER ON THE OTHER SIDE OF SAID GRATE FROM SAID NOZZLE; A GRAIN OF ROCKET PROPELLANT MATERIAL ADAPTED TO BURN ON ONE END ONLY DISPOSED WITHIN SAID
References Cited (Backward Citations)
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Cited
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Cited
US2799136A
Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |