US3044910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High burning rate solid propellant
Assignee: Phillips Petroleum Co
•
Filing: 1958-06-16
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Granted: 1962-07-17
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Expires: 1978-06-16
Abstract
No abstract record available.
Inventors
- 👤 Eugene D Guth
- 👤 Claude G Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:56
CPC Classifications
C; C06; C06B; C06B45/00; C06B45/04; C06B45/06; C06B45/10; C06B21/00; C06B21/0008; C06B21/0025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A PROCESS FOR INCREASING THE BURNING RATE OF A SOLID ROCKET PROPELLANT COMPOSITION COMPRISING A SOLID INORGANIC OXIDIZING SALT, A RUBBER BINDER, A PLAASTICIZER, AND ABOUT 20 TO ABOUT 150 PARTS BY WEIGHT PER 100 PARTS OF RUBBER OF CARBON BLACK, WHICH COMPRISES MILLING THE COMPOSITION BETWEEN CLOSELY SPACED SURFACES WHEREIN AT LEAST PART OF THE MILLING IS EFFECTED BETWEEN TWO SURFACES HAVING A CLEARANCE OF ABOUT 0.009 INCH UNTIL THE SHORE D HARDNESS IS GREATER THAN ABOUT 50 AND HAS INCREASED TO AT LEAST 90 PERCENT OF THE MAXIMUM VALUE OBTAINABLE BY MILLING AND THE VALUE OF ELECTRICAL RESISTIVITY HAS INCREASED TO AT LEAST 40 PERCENT OF THE MAXIMUM VALUE OBTAINABLE BY MILLING.
Claim 2
Dependent Claim
114 words
A PROCESS FOR INCREASING THE BURNING RATE OF A SOLID ROCKET PROPELLANT COMPOSITION COMPRISING A SOLID INORGANIC OXIDIZING SALT, A RUBBER BINDER, A PLAASTICIZER, AND ABOUT 20 TO ABOUT 150 PARTS BY WEIGHT PER 100 PARTS OF RUBBER OF CARBON BLACK, WHICH COMPRISES MILLING THE COMPOSITION BETWEEN CLOSELY SPACED SURFACES WHEREIN AT LEAST PART OF THE MILLING IS EFFECTED BETWEEN TWO SURFACES HAVING A CLEARANCE OF ABOUT 0.009 INCH UNTIL THE SHORE D HARDNESS IS GREATER THAN ABOUT 50 AND HAS INCREASED TO AT LEAST 90 PERCENT OF THE MAXIMUM VALUE OBTAINABLE BY MILLING AND THE VALUE OF ELECTRICAL RESISTIVITY HAS INCREASED TO AT LEAST 40 PERCENT OF THE MAXIMUM VALUE OBTAINABLE BY MILLING.
References Cited (Backward Citations)
GB655585A
Cited
US2877504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |