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US 2014/0338556 A1Published application
Cartridge for Ammunition
OwnerAmnon Parizat, Robert J. Masseyinventors
Life of this patent
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Abstract
A single ply barrier foil is provided between the propellant in the cartridge casing and the pyrotechnic composition in the primer to prevent nitroglycerin migration from the propellant into the pyrotechnic composition. The single ply barrier foil is formed of ethyl cellulose and a plasticizer and has a thickness of 190 um±10 um.
Claims6
A cartridge comprising
- a casing;
- a double-base propellant disposed in said casing, said propellant having nitroglycerin therein;
- a primer disposed at one end of said casing and including a pyrotechnic composition;
- and
- a single ply barrier foil disposed between said propellant and said pyrotechnic composition to prevent nitroglycerin migration from said propellant into said pyrotechnic composition.
2 more elements
Dependencies are inferred from the claim text.