Suppression of unstable burning using finely divided metal oxides
Abstract
Abstract 1. A SOLID PROPELLANT COMPOSITION WHICH COMPRISES A CURED INTIMATE MIXTURE OF A NONMETALLIC OXIDIZING SALT, A RESIN BINDER SELECTED FROM THE GROUP CONSISTING OF POLYURETHANE RESIN, POLYESTER RESIN, ACRYLATE RESIN, POLYSULFIDE POLYMER, NITROCELLULOSE PLASTICIZER, AND NITROPOLYURETHANE RESIN, AND AS A RESONANCE SUPPRESSOR, A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM OXIDE, ZIRCONIUM OXIDE, SILICON DIOXIDE, THORIUM OXIDE, TITANIUM OXIDE LANTHANUM OXIDE, AND MIXTURES THEREOF, IN AN AMOUNT EFFECTIVE TO SUPPRESS RESONANT BURNING UP TO AN AMOUNT NOT GREATER THAN THAT EQUIVALENT TO ABOUT 5 PERCENT BY WEIGHT OF THE PROPELLANT COMPOSITION, SAID RESIN BINDER BEING PRESENT IN AN AMOUNT BETWEEN ABOUT 5 PERCENT AND ABOUT 55 PERCENT BY WEIGHT AND THE SOLID NON-METALLIC OXIDIZING SALT BEING PRESENT IN AN AMOUNT BETWEEN ABOUT 95 AND ABOUT 45 PERCENT BY WEIGHT, ALL PERCENTAGES BEING GIVEN BY TOTAL PROPELLANT WEIGHT BASIS.
Inventors
- 👤 R Lawrence
- 👤 A Secchi
Bibliographic Details
Claims Analysis
Total Claims: 2References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-01 | 1977-12-31 | 1978-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-01 | 1981-12-31 | 1982-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-01 | 1985-12-31 | 1986-07-02 | $7700.00 | Window Closed / Lapsed |