EP0475207A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Caseless unitized ammunition charge module
Assignee: Olin Corp
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Filing: 1991-08-29
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Granted: —
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Expires: 2011-08-29
Abstract
Abstract A unitary propellant charge module for use in separate ammunition comprises a combustible container (18) having a generally hollow cylindrical shape, a generally cylindrical charge body (12) of interconnected compacted spheroidal propellant grains disposed within the container, each of the grains having an uncompacted propellant grain diameter of at least 100 mils, and at least one generally tubular center core igniter body (13) of interconnected compacted spheroidal propellant grains having an unrolled grain size between about 20 to less than 100 mils in diameter. The igniter body (13) is disposed within a central bore extending along the longitudinal axis of the charge body (12).
Inventors
- 👤 Antonio Gonzalez
- 👤 Henry Hill Raines
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 18:39
CPC Classifications
F; F42; F42B; F42B5/00; F42B5/38; F42B5/02; F42B5/16; F42B5/18
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
41 words
A unitary propellant charge module for use in separate ammunition characterized by: a solid, porous, self-supporting charge body of interconnected compacted spheroidal propellant grains, each of said charge body grains having an uncompacted propellant grain diameter of at least 100 mils.
Claim 2
Dependent Claim
25 words
The module according to claim 1 characterized in that said charge body has a right circular cylinder shape symmetrical about a central axial bore therethrough.
Claim 3
Dependent Claim
55 words
The module according to claim 2 further characterized by a solid compacted igniter charge disposed in said bore characterized in that said igniter charge is an annular right circular cylinder of compacted spheroidal propellant grains, each of said igniter charge grains having an uncompacted grain diameter of between about 20 to less than 100 mils.
Claim 4
Dependent Claim
20 words
The module according to any one of claims 1 to 3, further characterized by a combustible casing enclosing said body.
Claim 5
Dependent Claim
16 words
The module according to claim 4 characterized in that said casing is a two piece container.
Claim 6
Dependent Claim
105 words
A unitary propellant charge module for use in separate ammunition characterized by: a combustible container having a generally hollow cylindrical shape; a generally cylindrical porous, self-supporting charge body of interconnected compacted spheroidal propellant grains disposed within said container, each of said grains having an uncompacted propellant grain diameter of at least 100 mils, said body having a central bore extending therethrough along the longitudinal axis of said body; and at least one porous generally tubular center core igniter body of interconnected compacted spheroidal propellant grains having an unrolled grain size between about 20 to less than 100 mils in diameter disposed within said central bore.
Claim 7
Dependent Claim
28 words
The module according to any one of claims 1 to 6, characterized in that the uncompacted diameter of said charge body grains is between 120 and 160 mils.
Claim 8
Dependent Claim
29 words
The module according to any one of claims 3 to 7, characterized in that the uncompacted diameter of said igniter charge grains is between about 40 and 70 mils.
Claim 9
Dependent Claim
38 words
The module according to any one of claims 3 to 8, further characterized by said igniter body having an outer sleeve made of combustible fiber material around said igniter body, said sleeve having a plurality of apertures therethrough.
Claim 10
Dependent Claim
25 words
The module according to any one of claims 3 to 9, further characterized by a plurality of igniter strands disposed within said tubular igniter body.
Claim 11
Dependent Claim
26 words
The module according to any one of claims 5 to 10, characterized in that said casing/container is a coating applied to the exterior of said charge.
Claim 12
Dependent Claim
15 words
The module according to claim 11, characterized in that said coating is a polyurethane system.
Claim 13
Dependent Claim
26 words
The module according to any one of claims 3 to 12, characterized in that said igniter body has an exterior coating of a moisture proofing material.
Claim 14
Dependent Claim
28 words
The module according to any one of claims 3 to 13, further characterized by at least one igniter ring axially disposed adjacent said igniter body within said bore.
Claim 15
Dependent Claim
21 words
The module according to claim 14, further characterized by a pair of igniter rings at opposite ends of said central bore.
Claim 16
Dependent Claim
56 words
The module according to any one of claims 2 to 15, characterized in that said bore has a constricted middle portion having a generally uniform diameter separating two larger diameter end portions, each of said end portions receiving and retaining a tubular igniter body adjacent said middle portion and an igniter ring adjacent said igniter body.
Claim 17
Dependent Claim
30 words
The module according to claim 16, characterized in that said igniter ring and said igniter body each have an inner diameter approximately matching the diameter of said constricted middle portion.
References Cited (Backward Citations)
US2405104A
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DE1244632B
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