Abstract

The present invention relates to a lifting plug having improved insensitive performance for a high explosive projectile, in which the lifting plug ensures long-term storage such as a prevention of maximum moisture absorption during storage of high explosives and has improved airtightness by attaching an auxiliary bolt and an O-ring in addition to a lock bolt to a window of the lifting plug. Furthermore, the lifting plug prevents rupturing or cracking of the lifting plug by changing a material and thickness of the lifting plug and is provided with a vent formed by an ignition of explosives igniting at lower temperature compared with a main charge and a supplementary charge, thereby improving a safety of the long-term storage, as well as improving insensitivity.

IPC Classes  ?

• F42B 39/20 - Packages or ammunition having valves for pressure-equalisingPackages or ammunition having plugs for pressure release, e.g. meltable

Abstract

The present invention relates to a lifting plug for a high explosive projectile capable of forming a vent by a thermal fuse, in which the lifting plug is mounted to a front part of a shell of the high explosive projectile such that the vent can be formed in the lifting plug by the thermal fuse when unexpected accidents such as fires or terrorism occur during storage of the high explosive projectile, so the lifting plug can induce burning or deflagrating of the thermal fuse without allowing the high explosive projectile to be detonated or exploded by accumulated heat in the high explosive projectile due to the vent, thereby improving safety of the high explosive projectile.

IPC Classes  ?

• F41A 9/00 - Feeding or loading of ammunitionMagazinesGuiding means for the extracting of cartridges
• F42B 39/20 - Packages or ammunition having valves for pressure-equalisingPackages or ammunition having plugs for pressure release, e.g. meltable