Patent US6028397A successfully refreshed from Google Patents.
Patent US3133841A successfully refreshed from Google Patents.
US3133841A
Expired / Lapsed
US
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Solid propellants
Assignee: RTX Corp
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Filing: 1961-10-19
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Granted: 1964-05-19
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Expires: 1981-10-19
Abstract
No abstract record available.
Inventors
- 👤 Donald K Kuehl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:57
CPC Classifications
C; C06; C06B; C06B45/00; C06B45/04; C06B33/00; C06B33/06; C06B39/00; C06B39/02; C06B45/18; C06B45/30; Y; Y10; Y10S; Y10S149/00; Y10S149/11; Y10S149/114; Y10S149/115
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
FOR USE WITH SOLID PROPELLANT ROCKET FUELS, AN EASY TO HANDLE, STABLE, RAPID BURNING COMPOSITION OF MATTER IN THE FORM OF GRANULES HAVING AN AVERAGE PARTICLE SIZE OF ABOUT 10 TO 250 MICRONS, SAID GRANULES COMPRISING A MATRIX OF A MATERIAL NORMALLY SOLD AT ORDINARY TEMPERATURES WHICH IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF LOW MELTING METALS AND ALLOYS, PHOSPHOROUS AND SULFUR, THE MATRIX HAVING IMBEDDED THEREIN A PLURALITY OF FINELY DIVIDED PARTICLES OF A PHYROPHORIC METAL, THE AVERAGE PARTICLE ZIE OF THE PYROPHORIC METAL BEING LESS THAN ABOUT 10 MICRONS, THE MATRIX MATERIAL AT ORDINARY TEMPERATURES SERVING TO PREVENT IGNITION OF THE IMBEDDED PARTICLES OF PYROPHORIC METAL BUT BEING CAPABLE OF DISSIPATING AT TEMPERATURES BELOW ABOUT 1200*F. TO RELEASE THE FINELY DIVIDED PARTICLES OF THE PYROPHORIC METAL.
Claim 2
Dependent Claim
130 words
FOR USE WITH SOLID PROPELLANT ROCKET FUELS, AN EASY TO HANDLE, STABLE, RAPID BURNING COMPOSITION OF MATTER IN THE FORM OF GRANULES HAVING AN AVERAGE PARTICLE SIZE OF ABOUT 10 TO 250 MICRONS, SAID GRANULES COMPRISING A MATRIX OF A MATERIAL NORMALLY SOLD AT ORDINARY TEMPERATURES WHICH IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF LOW MELTING METALS AND ALLOYS, PHOSPHOROUS AND SULFUR, THE MATRIX HAVING IMBEDDED THEREIN A PLURALITY OF FINELY DIVIDED PARTICLES OF A PHYROPHORIC METAL, THE AVERAGE PARTICLE ZIE OF THE PYROPHORIC METAL BEING LESS THAN ABOUT 10 MICRONS, THE MATRIX MATERIAL AT ORDINARY TEMPERATURES SERVING TO PREVENT IGNITION OF THE IMBEDDED PARTICLES OF PYROPHORIC METAL BUT BEING CAPABLE OF DISSIPATING AT TEMPERATURES BELOW ABOUT 1200*F. TO RELEASE THE FINELY DIVIDED PARTICLES OF THE PYROPHORIC METAL.
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) | 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 |