US2930683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ammonium nitrate composite propellant and method of preparation
Assignee: Phillips Petroleum Co
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Filing: 1955-08-08
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Granted: 1960-03-29
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Expires: 1975-08-08
Abstract
No abstract record available.
Inventors
- 👤 Barnet R Adelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:36
CPC Classifications
C; C06; C06B; C06B21/00; C06B21/0033; C06B21/0058; C06B31/00; C06B31/28; C06B31/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A PROCESS FOR THE PRODUCTION OF A SOLID ROCKET PROPELLANT CHARGE COMPRISING FROM ABOUT 50 TO ABOUT 90 WEIGHT PERCENT AMMONIUM NITRATE AND FROM ABOUT 10 TO ABOUT 50 WEIGHT PERCENT OF A RUBBER BINDER WHICH COMPRISES DRYING THE AMMONIUM NITRATE AT A TEMPERATURE ABOVE 90*F. AND NOT SUBSTANTIALLY HIGHER THAN 200*F., INCORPORATING THE DRIED AMMONIUM NITRATE INTO SUBSTANTIALLY DRY, UNCURED RUBBER AT A TEMPERATURE IN THE RANGE ABOUT 90* AND 160*F., FORMING THE RESULTING MIXTURE INTO CHARGES, AND CURING THE CHARGES AT A TEMPERATURE IN THE RANGE OF ABOUT 175*F. TO ABOUT 180*F. SO THAT THE AMMONIUM NITRATE IS MAINTAINED AT A TEMPERATURE IN THE RANGE OF 90 TO 200*F. FROM THE DRYING STEP TO THE END OF THE CURING STEP.
Claim 2
Dependent Claim
122 words
A PROCESS FOR THE PRODUCTION OF A SOLID ROCKET PROPELLANT CHARGE COMPRISING FROM ABOUT 50 TO ABOUT 90 WEIGHT PERCENT AMMONIUM NITRATE AND FROM ABOUT 10 TO ABOUT 50 WEIGHT PERCENT OF A RUBBER BINDER WHICH COMPRISES DRYING THE AMMONIUM NITRATE AT A TEMPERATURE ABOVE 90*F. AND NOT SUBSTANTIALLY HIGHER THAN 200*F., INCORPORATING THE DRIED AMMONIUM NITRATE INTO SUBSTANTIALLY DRY, UNCURED RUBBER AT A TEMPERATURE IN THE RANGE ABOUT 90* AND 160*F., FORMING THE RESULTING MIXTURE INTO CHARGES, AND CURING THE CHARGES AT A TEMPERATURE IN THE RANGE OF ABOUT 175*F. TO ABOUT 180*F. SO THAT THE AMMONIUM NITRATE IS MAINTAINED AT A TEMPERATURE IN THE RANGE OF 90 TO 200*F. FROM THE DRYING STEP TO THE END OF THE CURING STEP.
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) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |