US3635847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
An explosive assembly including a body portion and a closure having a covering of elastomeric material
Assignee: Lockheed Martin Tactical Systems Inc
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Filing: 1968-12-24
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Granted: 1972-01-18
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Expires: 1988-12-24
Abstract
Abstract This invention relates to an explosive assembly having a body portion and closures therefor, the body portion and closures having a covering of an ablative elastomeric material where the elastomeric material is polybutadiene acrylonitrile, polychloroprene and mixtures thereof with polyvinyl chloride that is compounded with a curative, plasticizer and a burn resistant agent, preferred plasticizers being phenol formaldehyde resin or polyethylene of 8,000 to 15,000 molecular weight.
Inventors
- 👤 Theodore A Evans
- 👤 Marvin T Conger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:18
CPC Classifications
F; F42; F42B; F42B39/00; F42B39/14; F42B39/18; C; C09; C09D; C09D5/00; C09D5/18; Y; Y10; Y10S; Y10S521/00; Y10S521/907
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
16 words
The assembly of claim 1 wherein the elastomer is compounded with a two-stage phenol formaldehyde resin.
Claim 2
Dependent Claim
11 words
The assembly of claim 1 wherein the elastomeric material is porous.
Claim 3
Dependent Claim
27 words
The assembly of claim 1 wherein the elastomer is compounded with about 1 to 6 percent by weight of a polyethylene of 8,000 to 15,000 molecular weight.
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) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |