US3683815A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frangible glass grenade
Assignee: United States Department of the Army
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Filing: 1970-11-03
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Granted: 1972-08-15
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Expires: 1990-11-03
Abstract
Abstract An improved munition and method for controlling riotous conditions; the improvement being the utilization of a frangible container for the munition.
Inventors
- 👤 Roy E Shaffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:38
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/72; F42B12/76; F42B12/02; F42B12/36; F42B12/46; F42B12/50
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
99 words
In a munition adapted to deliver a payload to a target area having a plurality of components comprising a plunger assembly, a striker means, and a safety pin means; the improvement in combination with the components being a container means made of a frangible material and the striker means being a material which is harder than the container material, said frangible material being glass having a density of 2.46 gms/cc, a softening point at 880 * C, and a strain point at 583* C adapted to be fragmentized into particles having no sharp edges and to prevent wound injuries.
Claim 2
Dependent Claim
99 words
In a munition adapted to deliver a payload to a target area having a plurality of components comprising a plunger assembly, a striker means, and a safety pin means; the improvement in combination with the components being a container means made of a frangible material and the striker means being a material which is harder than the container material, said frangible material being glass having a density of 2.46 gms/cc, a softening point at 880 * C, and a strain point at 583* C adapted to be fragmentized into particles having no sharp edges and to prevent wound injuries.
Claim 3
Dependent Claim
11 words
The munition of claim 1 wherein the munition is a grenade.
Claim 4
Dependent Claim
12 words
The munition of claim 1 wherein the glass has been chemically treated.
Claim 5
Dependent Claim
15 words
The munition of claim 3 wherein the chemical treatment is by hot alkali metal bath.
Claim 6
Dependent Claim
64 words
The munition of claim 1 wherein the glass has a 1.65 X 103 psi at 25* C strength to weight ratio modulus of rupture to specific gravity, a 10.3 X 106 psi at 25* C Young''s Modulus of Elasticity, a 4.3 X 106 psi at 25* C shear modulus, a 40,000 psi modulus of rupture standard sandblast abrasion, and a 590 Kg/mm2 Knoop hardness.
Claim 7
Dependent Claim
13 words
The munition of claim 1 wherein the striker means material is a diamond.
Claim 8
Dependent Claim
12 words
The munition of claim 1 wherein the payload is a chemical agent.
Claim 9
Independent Claim
137 words
A method of controlling riotous conditions by disseminating a chemical agent from a frengible container comprising the steps of removing a safety pin from a grenade having a frangible container, said frangible material being glass having a density of 2.46 gms/cc, a softening point at 880* C, and a strain point at 583* C adapted to be fragmentized into particles having no sharp edges and to prevent wound injuries; throwing the grenade to a riotous target area; striking the container with a striker means on impact of the grenade with a surface to cause the container to be scratched and fragmentized, the striker means being a material which is harder than the container material; fragmentizing the container into particles having no sharp edges to prevent wound injuries; and disseminating the chemical agent at the riotous target area.
Claim 10
Independent Claim
137 words
A method of controlling riotous conditions by disseminating a chemical agent from a frengible container comprising the steps of removing a safety pin from a grenade having a frangible container, said frangible material being glass having a density of 2.46 gms/cc, a softening point at 880* C, and a strain point at 583* C adapted to be fragmentized into particles having no sharp edges and to prevent wound injuries; throwing the grenade to a riotous target area; striking the container with a striker means on impact of the grenade with a surface to cause the container to be scratched and fragmentized, the striker means being a material which is harder than the container material; fragmentizing the container into particles having no sharp edges to prevent wound injuries; and disseminating the chemical agent at the riotous target area.
References Cited (Backward Citations)
US2008235A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |