US3754507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Penetrator projectile
Assignee: United States Department of the Navy
•
Filing: 1972-05-30
•
Granted: 1973-08-28
•
Expires: 1992-05-30
Abstract
Abstract A projectile in which a combination of interior elements, including a penetrator, a pyrotechnic delay column and an ignition charge are utilized to ignite a viscous uncured propellant after the projectile has been fired. The thus ignited propellant increases the velocity and effectiveness of the projectile.
Inventors
- 👤 R Dillinger
- 👤 H Payne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:40
CPC Classifications
F; F42; F42C; F42C1/00; F42C1/10; F42B; F42B12/00; F42B12/02; F42B12/04; F42B12/06; F42B15/00; Y; Y10; Y10S; Y10S102/00; Y10S102/702
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A projectile according to claim 1 in which said propellant comprises NH4ClO4 particles and Al particles suspended in a binder material selected from uncured carboxy terminated polybutadiene and uncured hydroxy terminated polybutadiene.
Claim 2
Dependent Claim
12 words
A projectile according to claim 1 in which said nozzle is ablative.
References Cited (Backward Citations)
US36686A
Cited
US982402A
Cited
US2419414A
Cited
US3097602A
Cited
US3277825A
Cited
US3302570A
Cited
US3399088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |