US4133707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Priming mix with minimum viscosity change
Assignee: Olin Corp
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Filing: 1977-11-14
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Granted: 1979-01-09
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Expires: 1997-11-14
Abstract
Abstract An extrudable ammunition priming mix with viscosity characteristics which remain relatively stable over an extended time span. The stabilized viscosity is obtained by incorporating an effective amount of guar gum into the priming mix. The primer thus displays improved pot life so that larger batches may be made and used over an extended period of time.
Inventors
- 👤 Eugene A. Andrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:06
CPC Classifications
C; C06; C06B; C06B23/00; C06B41/00; C06B41/02; C06B41/04; C06B41/06; C06B47/00; C06B47/14; C06C; C06C7/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
89 words
A water-bearing extrudable explosive primer mix having improved rheological stability comprising: (a) about from 25 to 60% lead styphnate, (b) about from 1 to 10% tetracene, (c) about from 0 to 10% pentaerythritol tetranitrate (PETN), (d) about from 20 to 60% barium nitrate, (e) about from 0 to 25% antimony sulfide, (f) about from 0 to 10% aluminum, (g) an amount of water effective to reduce said mix to an extrudable consistancy, and (h) an amount of guar gum effective to substantially stabilize the consistancy of said extrudable mix.
Claim 2
Dependent Claim
89 words
A water-bearing extrudable explosive primer mix having improved rheological stability comprising: (a) about from 25 to 60% lead styphnate, (b) about from 1 to 10% tetracene, (c) about from 0 to 10% pentaerythritol tetranitrate (PETN), (d) about from 20 to 60% barium nitrate, (e) about from 0 to 25% antimony sulfide, (f) about from 0 to 10% aluminum, (g) an amount of water effective to reduce said mix to an extrudable consistancy, and (h) an amount of guar gum effective to substantially stabilize the consistancy of said extrudable mix.
Claim 3
Dependent Claim
16 words
The primer mix of claim 1 containing about from 0.1 to 1.5 p.p.h. of guar gum.
Claim 4
Dependent Claim
37 words
The primer mix of claim 2 containing about from 1 to 10% pentaerythritol tetranitrate (PETN), about from 5 to 25% antimony sulfide, about from 1 to 7% aluminum, and about from 15.5 to 18.5 p.p.h. of water.
Claim 5
Dependent Claim
23 words
The primer mix of claim 2 containing about from 0 to 10% antimony sulfide and about from 15.5 to 18.5 p.p.h. of water.
Claim 6
Dependent Claim
37 words
The primer mix of claim 2 containing about from 1 to 10% pentaerythritol tetranitrate (PETN), about from 5 to 25% antimony sulfide, about from 1 to 7% aluminum, and about from 16.5 to 19.0 p.p.h. of water.
Claim 7
Dependent Claim
62 words
An extrudable ammunition primer mix having improved rheological stability comprising: effective amounts of at least one primary explosive, at least one oxidizer, and at least one fuel; an amount of water effective to provide said primer mix with a readily extrudable consistancy and viscosity; and an effective amount of guar gum to substantially stabilize the consistancy and viscosity of said primer mix.
Claim 8
Dependent Claim
62 words
An extrudable ammunition primer mix having improved rheological stability comprising: effective amounts of at least one primary explosive, at least one oxidizer, and at least one fuel; an amount of water effective to provide said primer mix with a readily extrudable consistancy and viscosity; and an effective amount of guar gum to substantially stabilize the consistancy and viscosity of said primer mix.
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) | 1982-01-08 | 1982-07-10 | 1983-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-08 | 1986-07-10 | 1987-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-08 | 1990-07-10 | 1991-01-09 | $7700.00 | Window Closed / Lapsed |