US3948181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaped charge
Assignee: Chamberlain Manufacturing Corp
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Filing: 1973-05-14
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Granted: 1976-04-06
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Expires: 1993-05-14
Abstract
Abstract Method and apparatus for improving the behind-the-targets effects of shaped charge munitions which provides a secondary target defeating mechanism which follows through the opening formed by the high velocity jet which perforates the target. The shaped charge liner may be axially symmetrical in the form of a cone or section of a sphere and behind the apex is mounted the follow through secondary target defeating mechanism which is surrounded by the explosive charge. When the charge is ignited the resulting detonation wave collapses the liner into a high velocity jet or slug that perforates the target after which the follow-through agent is driven through the perforation. The follow-through agent may be pyrophoric or ignitable and such agents will increase the temperature and pressure particularly if the target is a closed target. Other materials may be used and introduced into the target through the perforation.
Inventors
- 👤 John J. Bergstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:10
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/02; F42B12/04; F42B12/10; F42B12/36; F42B12/44
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
154 words
A shaped charge device providing follow-through of material comprising a generally cylindrical case formed with a rear end wall, a shaped charge forming liner mounted in the front end of said case, a solid cylindrical shaped body of follow-through material consisting of zirconium, titanium, Magnesium-Teflon or misch metals mounted on the longitudinal axis of said case between said rear end wall and said shaped charge forming liner, explosive material filling the remaining space of said case, detonating means mounted in said case for detonating said explosive in a region near said rear wall, and wherein said shaped charge forming liner is conical in shape and mounted so as to extend inwardly and symmetrically with respect to said case and the apex of said conical liner is truncated and forming an opening into which said body of follow-through material is received such that the liner and follow-through material form an integral shaped charge forming structure.
Claim 2
Dependent Claim
154 words
A shaped charge device providing follow-through of material comprising a generally cylindrical case formed with a rear end wall, a shaped charge forming liner mounted in the front end of said case, a solid cylindrical shaped body of follow-through material consisting of zirconium, titanium, Magnesium-Teflon or misch metals mounted on the longitudinal axis of said case between said rear end wall and said shaped charge forming liner, explosive material filling the remaining space of said case, detonating means mounted in said case for detonating said explosive in a region near said rear wall, and wherein said shaped charge forming liner is conical in shape and mounted so as to extend inwardly and symmetrically with respect to said case and the apex of said conical liner is truncated and forming an opening into which said body of follow-through material is received such that the liner and follow-through material form an integral shaped charge forming structure.
Claim 3
Dependent Claim
101 words
A shaped charge device providing follow-through of material comprising a generally cylindrical case formed with a rear end wall, a shaped charge forming liner mounted in the front end of said case, a solid cylindrical shaped body of follow-through material consisting of zirconium, titanium, Magnesium-Teflon or misch metals mounted on the longitudinal axis of said case between said rear end wall and said shaped charge forming liner, explosive material filling the remaining space of said case, detonating means mounted in said case for detonating said explosive in a region near said rear end wall, and wherein said follow-through material is incendiary.
Claim 4
Dependent Claim
101 words
A shaped charge device providing follow-through of material comprising a generally cylindrical case formed with a rear end wall, a shaped charge forming liner mounted in the front end of said case, a solid cylindrical shaped body of follow-through material consisting of zirconium, titanium, Magnesium-Teflon or misch metals mounted on the longitudinal axis of said case between said rear end wall and said shaped charge forming liner, explosive material filling the remaining space of said case, detonating means mounted in said case for detonating said explosive in a region near said rear end wall, and wherein said follow-through material is incendiary.
Claim 5
Dependent Claim
112 words
A shaped charge device providing follow-through of material comprising a generally cylindrical case formed with a rear end wall, a shaped charge forming liner mounted in the front end of said case, a solid cylindrical shaped body of follow-through material consisting of zirconium, titanium, Magnesium-Teflon or misch metals mounted on the longitudinal axis of said case between said rear end wall and said shaped charge forming liner, explosive material filling the remaining space of said case, detonating means mounted in said case detonating said explosive in a region near said rear end wall, and wherein said shaped charge liner is symmetrical about the longitudinal axis and is a section of a sphere.
Claim 6
Dependent Claim
112 words
A shaped charge device providing follow-through of material comprising a generally cylindrical case formed with a rear end wall, a shaped charge forming liner mounted in the front end of said case, a solid cylindrical shaped body of follow-through material consisting of zirconium, titanium, Magnesium-Teflon or misch metals mounted on the longitudinal axis of said case between said rear end wall and said shaped charge forming liner, explosive material filling the remaining space of said case, detonating means mounted in said case detonating said explosive in a region near said rear end wall, and wherein said shaped charge liner is symmetrical about the longitudinal axis and is a section of a sphere.
References Cited (Backward Citations)
CA624117A
Cited
FR73306E
Cited
US2809585A
Cited
US3235005A
Cited
US2927535A
Cited
GB864238A
Cited
US3669020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-04-06 | 1979-10-06 | 1980-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-06 | 1983-10-06 | 1984-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-06 | 1987-10-06 | 1988-04-06 | $7700.00 | Window Closed / Lapsed |