Patent ID: 7481167
Filing Date: 2009-01-27
Classification: F42B

Abstract:
1. A fixed munition for use in a barrel of a low-pressure launching unit comprising: a cylindrical body having a centrally located bore, a charge end and a discharge end; said bore having a reduced diameter on said charge end thereby defining a ledge portion within said bore, wherein the ledge portion is substantially flat and extends substantially parallel with a base surface of said body and wherein a length of said bore extending from the ledge portion to the discharge end or approximately to the discharge end has a substantially constant diameter; a primer charge positioned in said reduced diameter of said body on said charge end; said bore being filled above said primer charge with a propellant and being at least filled above said propellant with a payload; and wherein said body is configured to withstand pressure developed within said bore thereof that substantially exceeds an allowable-working pressure of the barrel of the low-pressure launching unit and is configured such that said pressure developed within said bore thereof that substantially exceeds the allowable working pressure of the barrel of the low-pressure launching unit is not exposed to an inner bore of the barrel of the low-pressure launching unit whereby the fixed munition withstands said high pressure thereby acting as the barrel of the low-pressure launching unit.