US3880044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Muzzle attachment for accelerating a projectle
Assignee: United States Department of the Army
•
Filing: 1973-07-05
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Granted: 1975-04-29
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Expires: 1993-07-05
Abstract
Abstract An efficient hypervelocity weapon system is described in which a conically-based projectile is initially launched from a reusable conventional gun into an aligned cylindrical tube of high explosive which is initiated by the rotating band located at the juncture of the conical base and the rearward end of the bourrelet. As the projectile moves through the high explosive tube, the gases generated from its detonation implode upon the conical projectile base rearwardly of the rotating band and cause the projectile to accelerate to a hypervelocity range in the direction of travel.
Inventors
- 👤 Abraham L Korr
- 👤 Evan Harris Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:13
CPC Classifications
F; F41; F41A; F41A1/00; F41A1/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
120 words
In a weapon arrangement having a barrel with an open muzzle end, a disposable substantially cylindrical adapter having openings defined by ribs in its sidewall and secured to an external surface of said barrel open end, and means including an explosive tube for accelerating a projectile launched conventionally from said barrel to a hypervelocity range, said explosive tube including a combustible plastic tube secured to a forward portion of said adapter and extending forwardly of said adapter, said plastic tube surrounding and containing a molded explosive cylinder, said molded explosive cylinder being in longitudinal alignment with and longitudinally spaced forwardly of said barrel, said explosive cylinder having an inside diameter slightly less than the bore of said barrel muzzle end.
Claim 2
Dependent Claim
120 words
In a weapon arrangement having a barrel with an open muzzle end, a disposable substantially cylindrical adapter having openings defined by ribs in its sidewall and secured to an external surface of said barrel open end, and means including an explosive tube for accelerating a projectile launched conventionally from said barrel to a hypervelocity range, said explosive tube including a combustible plastic tube secured to a forward portion of said adapter and extending forwardly of said adapter, said plastic tube surrounding and containing a molded explosive cylinder, said molded explosive cylinder being in longitudinal alignment with and longitudinally spaced forwardly of said barrel, said explosive cylinder having an inside diameter slightly less than the bore of said barrel muzzle end.
Claim 3
Dependent Claim
66 words
The structure in accordance with claim 1 wherein said adapter has a first tubular portion secureD to said barrel, a second tubular portion secured to said explosive tube, said second tubular portion being longitudinally spaced from said first tubular portion, and an intermediate tubular portion integral with both said first and second tubular portions, said intermediate tubular portion having a plurality of openings in its sidewall.
Claim 4
Dependent Claim
43 words
The structure of claim 2 wherein said intermediate tubular portion is concentric with and radially spaced outside of both said first and second tubular portions, and a pair of diametrically opposed handles are respectively integral with both said first and intermediate tubular portions.
Claim 5
Dependent Claim
21 words
The structure of claim 1 wherein a shield is secured to said external surface of said barrel rearwardly of said adapter.
Claim 6
Dependent Claim
64 words
The structure of claim 4 wherein said adapter has a first tubular portion secured to said barrel, a second tubular portion secured to said explosive tube, said second tubular portion being longitudinally spaced from said first tubular portion, and an intermediate tubular portion integral with both said first and second tubular portions, said intermediate tubular portion having sidewall. plurality of openings in its sidewalls.
Claim 7
Dependent Claim
43 words
The structure of claim 5 wherein said intermediate tubular portion is concentric with and radially spaced outside of both said first and second tubular portions, and a pair of diametrically opposed handles are respectively integral with both said first and intermediate tubular portions.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |