US5189249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gel propellant ammunition
Assignee: Ensign Bickford Co
•
Filing: 1991-11-14
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Granted: 1993-02-23
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Expires: 2011-11-14
Abstract
Abstract An insensitive gel propellant composition based on a fine-particle detonating high explosive which contains from about 10 to 15 wt. % water, and which will not ignite until subjected to a temperature of about 900 psi.
Inventors
- 👤 William C. Burkhardt
- 👤 Michael W. Diehl
- 👤 Wesley F. Spence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:14
CPC Classifications
C; C06; C06B; C06B47/00; C06B47/14
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
66 words
An improved ammunition comprising a shell, a projectile and an insensitive gel propellant in which the gel propellant comprises: (a) 20.1 wt % fine particle pentaerythritol tetranitrate; (b) 1 wt. % guar gum; (c) 3 wt. % starch (d) 12.1 wt. % of a carbon material having the formula C 10 H 8 ; (e) 53.8 wt. % ammonium nitrate; and (f) 10 wt. % water.
Claim 2
Dependent Claim
66 words
An improved ammunition comprising a shell, a projectile and an insensitive gel propellant in which the gel propellant comprises: (a) 20.1 wt % fine particle pentaerythritol tetranitrate; (b) 1 wt. % guar gum; (c) 3 wt. % starch (d) 12.1 wt. % of a carbon material having the formula C 10 H 8 ; (e) 53.8 wt. % ammonium nitrate; and (f) 10 wt. % water.
Claim 3
Dependent Claim
98 words
An improved ammunition comprising a shell, a projectile, and a gel propellant in which the gel propellant is not ignitable at pressures below about 900 psi and comprises: (a) from about 15 to 30 wt. % of a fine particle solid detonating high explosive; (b) from about 40 to 60 wt. % of an oxidizing agent; (c) from about 1 to 5 wt. % gum thickening agent; (d) from about 5 wt. % to about 25 wt. % water; (e) from about 1 to 5 wt. % nitrocellulose; and optionally (f) up to about 0.1 wt. % cross-linker.
Claim 4
Dependent Claim
98 words
An improved ammunition comprising a shell, a projectile, and a gel propellant in which the gel propellant is not ignitable at pressures below about 900 psi and comprises: (a) from about 15 to 30 wt. % of a fine particle solid detonating high explosive; (b) from about 40 to 60 wt. % of an oxidizing agent; (c) from about 1 to 5 wt. % gum thickening agent; (d) from about 5 wt. % to about 25 wt. % water; (e) from about 1 to 5 wt. % nitrocellulose; and optionally (f) up to about 0.1 wt. % cross-linker.
Claim 5
Dependent Claim
63 words
The ammunition of claim 2, in which, in the propellant, the solid detonating high explosive is selected from the group consisting of fine particle pentaerythrotal tetranitrate and trimethylene trinitramine, and the propellant contains a carbon material and a base wherein the carbon material is carbon black or uintaite having a chemical formula of C 10 H 8 , and the base is diphenylamine.
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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) | 1996-02-23 | 1996-08-24 | 1997-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-02-23 | 2000-08-24 | 2001-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-02-23 | 2004-08-24 | 2005-02-23 | $7700.00 | Window Closed / Lapsed |