Patent US3855931A successfully refreshed from Google Patents.
US3855931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Salvo ammunition for multiple bore open chamber gun
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1968-12-30
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Granted: 1974-12-24
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Expires: 1988-12-30
Abstract
Abstract Multiple projectile salvo ammunition for a salvo-firing open chamber gun having multiple bores. The ammunition is characterized by multiple mutually axially coextensive projectiles arranged in a fixed array about the longitudinal axis of the ammunition round in a manner such that projectiles are coaxially aligned in one-to-one relation with the gun bores when the round is positioned in firing position.
Inventors
- 👤 D Dardick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:57
CPC Classifications
F; F42; F42B; F42B5/00; F42B5/02; F42B5/03; F41; F41A; F41A9/00; F41A9/01; F41A9/24; F41A9/26; F41A9/27; F41A9/38; F41A9/46; F41F; F41F1/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
82 words
Salvo-type ammunition to be fired in a multiple bore open chamber gun of the character described, comprising: an ammunition round of generally triangular round shape in transverse cross-section having a central longitudinal axis and containing a rear propellant charge and a plurality of forward positionally fixed mutually axially coextensive elongate projectiles having individual longitudinal axes substantially parallel to and uniformly spaced from said central axis of said round, and said projectiles being angularly spaced in a predetermined array about said central axis.
Claim 2
Dependent Claim
82 words
Salvo-type ammunition to be fired in a multiple bore open chamber gun of the character described, comprising: an ammunition round of generally triangular round shape in transverse cross-section having a central longitudinal axis and containing a rear propellant charge and a plurality of forward positionally fixed mutually axially coextensive elongate projectiles having individual longitudinal axes substantially parallel to and uniformly spaced from said central axis of said round, and said projectiles being angularly spaced in a predetermined array about said central axis.
Claim 3
Dependent Claim
27 words
Ammunition according to claim 1, wherein: said round contains three projectiles which have their individual longitudinal axes disposed in planes bisecting the interior angles of the round.
Claim 4
Dependent Claim
34 words
Ammunition according to claim 1, wherein: said round has a generally equilateral triangular round shape in transverse cross-section; and said projectiles are uniformly angularly spaced in a predetermined symetrical array about said central axis.
Claim 5
Dependent Claim
62 words
Ammunition according to claim 1, wherein: said ammunition round is an open chamber ammunition round including an outer yieldable non-combustible cartridge case of generally triangular round shape in transverse cross-section and having a front end wall; said wall contains bores coaxially aligned with said projectiles, respectively; and obturator sleeves sealed to the walls of said latter bores and receiving said projectiles, respectively.
Claim 6
Dependent Claim
31 words
Ammunition according to claim 3, wherein: said projectiles are three in number; and said projectiles have their longitudinal axes located in planes, respectively, bisecting the three interior angles of the round.
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) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |