US4570540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
LOVA Type black powder propellant surrogate
Assignee: ATK Launch Systems LLC
•
Filing: 1984-08-09
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Granted: 1986-02-18
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Expires: 2004-08-09
Abstract
Abstract Low explosive compositions which are more energetic than black powder while at the same time having LOVA characteristics are provided. These compositions contain about 45% to about 66% by weight of a metallic nitrate, the balance being cellulose acetate.
Inventors
- 👤 Frank H. Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:12
CPC Classifications
C; C06; C06B; C06B45/00; C06B45/04; C06B45/06; C06B45/10; C06B31/00; C06B31/02
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
47 words
An igniter composition having a burn rate exponent of about zero consisting essentially of about 45% to about 66% by weight of a metallic nitrate selected from the group consisting of potassium nitrate and sodium nitrate and about 34% to about 55% by weight of cellulose acetate.
Claim 2
Dependent Claim
47 words
An igniter composition having a burn rate exponent of about zero consisting essentially of about 45% to about 66% by weight of a metallic nitrate selected from the group consisting of potassium nitrate and sodium nitrate and about 34% to about 55% by weight of cellulose acetate.
Claim 3
Dependent Claim
14 words
A composition according to claim 1 containing about 50% to about 61% metallic nitrate.
Claim 4
Dependent Claim
14 words
A composition according to claim 1 wherein the metallic nitrate is KNO 3 .
Claim 5
Dependent Claim
14 words
A composition according to claim 1 wherein the metallic nitrate is NaNO 3 .
Claim 6
Dependent Claim
14 words
A composition according to claim 2 wherein the metallic nitrate is KNO 3 .
Claim 7
Dependent Claim
14 words
A composition according to claim 2 wherein the metallic nitrate is NaNO 3 .
Claim 8
Dependent Claim
76 words
In an ordnance device comprising a primary charge selected from the group consisting of propellants and explosives and an igniter charge for igniting said primary charge, the improvement wherein said igniter charge consists essentially of about 45% to about 66% by weight of a metallic nitrate selected from potassium nitrate and sodium nitrate, and about 34% to about 55% by weight of cellulose acetate, whereby said igniter charge has a burn rate exponent of about zero.
Claim 9
Dependent Claim
76 words
In an ordnance device comprising a primary charge selected from the group consisting of propellants and explosives and an igniter charge for igniting said primary charge, the improvement wherein said igniter charge consists essentially of about 45% to about 66% by weight of a metallic nitrate selected from potassium nitrate and sodium nitrate, and about 34% to about 55% by weight of cellulose acetate, whereby said igniter charge has a burn rate exponent of about zero.
Claim 10
Dependent Claim
24 words
An ordnance device according to claim 7, wherein the igniter charge contains from about 50% to about 61% by weight of said metallic nitrate.
Claim 11
Dependent Claim
14 words
An ordnance device according to claim 7 wherein said metallic nitrate is potassium nitrate.
Claim 12
Dependent Claim
14 words
An ordnance device according to claim 7 wherein said metallic nitrate is sodium nitrate.
Claim 13
Dependent Claim
14 words
An ordnance device according to claim 8, wherein said metallic nitrate is potassium nitrate.
Claim 14
Dependent Claim
14 words
An ordnance device according to claim 8, wherein said metallic nitrate is sodium nitrate.
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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) | 1989-02-17 | 1989-08-19 | 1990-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-17 | 1993-08-19 | 1994-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-17 | 1997-08-19 | 1998-02-18 | $7700.00 | Window Closed / Lapsed |