Patent US5044282A successfully refreshed from Google Patents.
US5044282A
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US
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Tapered disc and jacketed explosive device for projecting high velocity metal jets
Assignee: United States Department of the Army
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Filing: 1990-10-15
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Granted: 1991-09-03
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Expires: 2010-10-15
Abstract
Abstract A cylindrical jacketed core explosive configuration with a circular taperedlyer plate operatively disposed in front of it produces a high velocity jet capable of penetrating hard materials. The charge assembly length is less than 1.4 times its diameter.
Inventors
- 👤 Brian Fuchs
- 👤 Barry Fishburn
- 👤 Ernest L. Baker
- 👤 Pai-Lien Lu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:46
CPC Classifications
F; F42; F42B; F42B1/00; F42B1/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
181 words
An apparatus for producing a shaped charge which comprises: detonator means for initiating an explosive charge: booster charge means operatively disposed in juxtaposition with said detonator means and capable of being explosively activated by said detonator means; jacket explosive means disposed adjacent to and in axial alignment with said booster charge means for being explosively activated by said booster charge means and for generating high detonation velocities; core explosive means axially disposed within said jacket explosive means for generating a Chapman-Jougnet detonation velocity lower than the detonation velocity of said jacket explosive means and for achieving a highly over driven Mach stem detonation; and disc means operatively disposed against said jacket and core explosive means for interacting with the Mach stem detonation of said core explosive means to produce a penetrating jet of disc material, including a tapered circular flyer plate disc having a taper extending from the outer edge of said jacket explosive annular configuration to the diameter of a central Mach stem region of an impacting detonation wave, which will be smaller than the diameter of said core explosive.
Claim 2
Independent Claim
181 words
An apparatus for producing a shaped charge which comprises: detonator means for initiating an explosive charge: booster charge means operatively disposed in juxtaposition with said detonator means and capable of being explosively activated by said detonator means; jacket explosive means disposed adjacent to and in axial alignment with said booster charge means for being explosively activated by said booster charge means and for generating high detonation velocities; core explosive means axially disposed within said jacket explosive means for generating a Chapman-Jougnet detonation velocity lower than the detonation velocity of said jacket explosive means and for achieving a highly over driven Mach stem detonation; and disc means operatively disposed against said jacket and core explosive means for interacting with the Mach stem detonation of said core explosive means to produce a penetrating jet of disc material, including a tapered circular flyer plate disc having a taper extending from the outer edge of said jacket explosive annular configuration to the diameter of a central Mach stem region of an impacting detonation wave, which will be smaller than the diameter of said core explosive.
Claim 3
Dependent Claim
30 words
An apparatus as described in claim 1 wherein the length of said booster charge, jacket explosive and core explosive assembly is less than 1.4 times the diameter of the assembly.
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) | 1994-09-02 | 1995-03-04 | 1995-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-02 | 1999-03-04 | 1999-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-02 | 2003-03-04 | 2003-09-03 | $7700.00 | Window Closed / Lapsed |