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US3754060A
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US
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Process for production of propellant charges comprising compressing geometrically shaped powders together
Assignee: Dynamit Nobel AG
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Filing: 1971-08-02
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Granted: 1973-08-21
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Expires: 1991-08-02
Abstract
Abstract A PROCESS FOR PRODUCING SHAPED POWDER ARTICLES FOR PROPELLENT CHARGES BY PRESSING POROUS POWDER GRAINS HAVING EXTERNAL GEOMETRIC SHAPES EXHIBITING EDGES, SPIKES OR THE LIKE WHICH PERMIT THE GRAINS TO INTERLOCK WITH EACH OTHER. PREFERABLY THE GRAINS HAVE T, X, Y, OR V-SHAPES, ALSO DSCLOSED ARE SHAPED POWDER ARTICLES PRODUCED BY THIS PROCESS.
Inventors
- 👤 H Gawlick
- 👤 G Marondel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:13
CPC Classifications
F; F42; F42B; F42B5/00; F42B5/02; F42B5/16; F02; F02K; F02K9/00; F02K9/08; F02K9/24
Claims Analysis
Total Claims: 0
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References 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) | 1976-08-20 | 1977-02-19 | 1977-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-20 | 1981-02-19 | 1981-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-20 | 1985-02-19 | 1985-08-21 | $7700.00 | Window Closed / Lapsed |