Shell with ejectable shell base

Patent metadata

Field	Value
Publication number	US-2016010966-A1
Application number	US-201414769108-A
Country	US
Kind code	A1
Filing date	Feb 19, 2014
Priority date	Feb 22, 2013
Publication date	Jan 14, 2016
Grant date	—

Abstract

The present invention relates to a shell ( 1 ) comprising a shell casing ( 2 ), a detonator ( 3 ), a payload ( 4 ), a shell base ( 5 ) and a separation charge ( 6 ) intended for ejection of the payload ( 4 ) and the shell base ( 5 ) from the shell ( 1 ) over a target area. The invention is characterized in that the shell base ( 5 ), following separation from the shell ( 1 ), can be divided into smaller parts which are harmless for the environment.

First claim

1 . A shell comprising a shell casing, a detonator, a payload, a shell base and a parting charge intended for ejection of the payload and the shell base from the shell, wherein the shell base, following separation from the shell, can be divided into smaller parts which are harmless for the environment.

2 . The shell according to claim 1 , wherein the shell base comprises a cylindrical container comprising an upper, open end face part and a lower, closed end face part, and a disc-shaped cap detachably mounted on the upper, open end face part, and in that the cylindrical container comprises at least two closely packed discs.

3 . The shell according to claim 2 , wherein the discs are 0.58 mm thick, circular and made of steel, and in that the number of discs is within the range 30-60.

4 . The shell according to claim 2 , wherein the cylindrical container and the lower, closed end face part are dimensioned to rupture under a given shearing force in the rearward direction of the shell upon ejection of the payload from the shell.

5 . The shell according to claim 2 , wherein the discs, following ejection of the shell base, can be divided into smaller disc parts via engraved kerfs on the discs.

Assignees

• Bae Systems Bofors Ab

Inventors

• Reijo Vesa

Classifications

• F42B12/62 Primary

  the submissiles being ejected parallel to the longitudinal axis of the projectile · CPC title

• F42B30/003

  Closures or baseplates therefor (closures for blasting cartridges F42B3/24, for shotgun cartridges F42B7/12) · CPC title

• F42B8/14

  disintegrating in flight or upon impact · CPC title

• F42B12/36 Primary

  for dispensing materials; for producing chemical or physical reaction; for signalling {; for transmitting information} · CPC title