US3325316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyrotechnic compositions of metal matrix with oxide dispersed therein
Assignee: Individual
•
Filing: 1965-03-29
•
Granted: 1967-06-13
•
Expires: 1985-03-29
Abstract
No abstract record available.
Inventors
- 👤 Gilmour C Macdonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:30
CPC Classifications
C; C06; C06C; C06C15/00; C06B; C06B45/00; C06B45/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A SOLID PYROTECHNIC COMPOSITION CONSISTING ESSENTIALLY OF 100 PARTS OF A LIGHT METAL SELECTED FORM THE GROUP CONSISTING OF ALUMINUM, MAGNESIUM AND ALLOYS THEREOF CONTAINING AT LEAST 25% BY WEIGHT OF SAID METAL, 3 TO 300 PARTS OF FINELY DIVIDED IRON OXIDE AND 1 TO 50 PARTS OF FINELY DIVIDED SILICON DIOXIDE, THE IRON OXIDED AND THE SILICON DIOXIDE BEING HOMOGENEOUSLY DISPERSED IN A MATRIX OF SAID LIGHT METAL, AND SAID COMPOSITION BEING CAPABLE OF BURNING IN AIR WITH PRODUCTION OF INTENSE HEAT, SAID COMPOSITION HAVING AN APPARENT VISCOSITY WHEN MELTED IN AN INERT STMOSPHERE AT A TEMPERATURE BETWEEN ABOUT 650 AND 1300*C. SUBSTANTIALLY GREATER THAN MOLTEN GROUP METAL AT THE SAME TEMPERATURE.
Claim 2
Dependent Claim
113 words
A SOLID PYROTECHNIC COMPOSITION CONSISTING ESSENTIALLY OF 100 PARTS OF A LIGHT METAL SELECTED FORM THE GROUP CONSISTING OF ALUMINUM, MAGNESIUM AND ALLOYS THEREOF CONTAINING AT LEAST 25% BY WEIGHT OF SAID METAL, 3 TO 300 PARTS OF FINELY DIVIDED IRON OXIDE AND 1 TO 50 PARTS OF FINELY DIVIDED SILICON DIOXIDE, THE IRON OXIDED AND THE SILICON DIOXIDE BEING HOMOGENEOUSLY DISPERSED IN A MATRIX OF SAID LIGHT METAL, AND SAID COMPOSITION BEING CAPABLE OF BURNING IN AIR WITH PRODUCTION OF INTENSE HEAT, SAID COMPOSITION HAVING AN APPARENT VISCOSITY WHEN MELTED IN AN INERT STMOSPHERE AT A TEMPERATURE BETWEEN ABOUT 650 AND 1300*C. SUBSTANTIALLY GREATER THAN MOLTEN GROUP METAL AT THE SAME TEMPERATURE.
References Cited (Backward Citations)
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US3026200A
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US3078553A
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US3139682A
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US3286334A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-12 | 1970-12-12 | 1971-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-12 | 1974-12-12 | 1975-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-12 | 1978-12-12 | 1979-06-13 | $7700.00 | Window Closed / Lapsed |