초록 ▼

An internal pressure relieving device for anti-armour ammunition. The device is mainly adapted for use with barrel-loaded ammunition, that is a naked round including a cartridge case, which normally would be located in its packaging. A plurality of slot formed openings have been cut out through a wa

An internal pressure relieving device for anti-armour ammunition. The device is mainly adapted for use with barrel-loaded ammunition, that is a naked round including a cartridge case, which normally would be located in its packaging. A plurality of slot formed openings have been cut out through a wall of the cartridge case and the openings have been sealed by inserts of polymeric plastic introduced with a tight fit into each opening. Hence, by the characteristics of the plastic material, the inserts can be configured to open up at a predetermined level of temperature. Alternatively, the inserts open up at a predetermined level of pressure in the cartridge case.

대표청구항 ▼

The invention claimed is: 1. A device for preventing an unintentional increase of internal pressure in a round of ammunition comprising a shell, the device comprising: a base plate; a cartridge case assembly comprising a cartridge case to be loaded in a barrel of an anti-armour non-disposable weapo

The invention claimed is: 1. A device for preventing an unintentional increase of internal pressure in a round of ammunition comprising a shell, the device comprising: a base plate; a cartridge case assembly comprising a cartridge case to be loaded in a barrel of an anti-armour non-disposable weapon, the cartridge case comprising a wall joined to the base plate and comprising a plurality of openings through the wall, wherein the openings are evenly distributed about the wall, and wherein a cross-sectional area of the openings is substantially equal to a cross-sectional area of the base plate; and a plurality of safety members sealing said openings and configured to open up at a predetermined level of pressure. 2. The device according to claim 1, wherein said safety member is configured to open up at a predetermined level of temperature in the cartridge case. 3. The device according to claim 1, wherein the cartridge case comprises metal and the safety member has the shape of an insert of resilient material introduced with a tight fit into the opening. 4. The device according to claim 3, wherein an edge of the opening is stepped in the form of a shoulder and a rim of said insert made with a stepped, complementary form to said shoulder and bonded to the same. 5. The device according to claim 1, wherein the cartridge case is configured as a cylinder. 6. The device according to claim 1, wherein the openings each comprise a longitudinal slot in the cartridge case.