Cased ammunition
November 29, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1940657 2362738 3882778 Pressure relief construction for controlled combustion of ordnance items Rocket motor Printed sheet urethane propellant Ammunition cartridge case Bending type ordnance venting device Cartridge case for telescoped ammunition round Solid propellant rocket motor case for insensitive munitions requirements InventorsAssigneeApplicationNo. 704742 filed on 11/29/1996US Classes:102/481, With safety means102/431, Combustilbe, destructible, or caseless102/464, Case102/466Plastic casesExaminersPrimary: Johnson, Stephen M.Attorney, Agent or FirmForeign Patent References
International ClassesF42B 005/28F42B 005/30 Foreign Application Priority Data1994-03-10 SEAbstractA cartridge case for service ammunition is designed to reduce the damage effect on the environment in the event of an extreme pressure increase in the propellent powder forming part of the charged ammunition, upon accidental ignition of the propellent powder and to a method for reduction of the damage. The cartridge case comprises at least one longitudinal weakening in the case material, the weakening being designed in such a manner that the case material, when the case is supported by the cartridge chamber of the weapon during the combustion of the powder, withstands stresses from the internal gas pressure, but breaks under the same gas pressure if the propellent powder is ignited when the case is located outside the cartridge chamber, thus splitting open along the weakening.Other References
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