# US 5,347,907 A · Multipurpose projectile and a method of making it

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- Number: US 5,347,907 A
- Document ID: US5347907A
- Status: Granted
- Kind: A
- Application number: 07/922,373
- Filed: 1992-07-31
- Granted: 1994-09-20
- Earliest claimed: 1991-08-01
- Assignees: Raufoss A/S
- Inventors: Kare R. Strandli; Inge M. Angard; Einar Willassen
- Web page: https://patentgrep.com/patent/US5347907A

## CPC

- F42B 12/06: with hard or heavy core; Kinetic energy penetrators (F42B12/16, F42B12/74 take precedence)
- F42B 12/44: of incendiary type (F42B12/46 takes precedence)
- F42B: EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION (explosive compositions C06B; fuzes F42C; blasting F42D)

## Abstract

A multipurpose projectile and a method of making it, said projectile comprising a shell (2) which contains a penetrator (1) and at least one incendiary charge (5) surrounding a portion of the penetrator in front of a well (3) in the bottom of the shell, in which the penetrator has been inserted. The incendiary charge (5) is pressed in approximately over its entire cross section by means of a plunger (14) having an annular pressing surface, and the cavity (12) in which the incendiary charge is situated is cylindrical and has a constant diameter along its entire length, whereby the pressing surface of the plunger substantially covers the entire cavity cross section between the penetrator (1) and the shell (2). The plunger is inserted through the front end of the shell, which is open prior to mounting a nose portion on the shell.

## Claims

### Claim 1

A multipurpose projectile comprising a shell which contains a penetrator and at least one incendiary charge surrounding a portion of the penetrator in front of a well in the bottom of the shell, in which the penetrator is inserted, the incendiary charge having been pressed in over its entire cross section, whereby the cavity in the shell in which the incendiary charge is situated is cylindrical and has a constant diameter along its entire length, and that the front end of the cavity in a per se known manner is closed by a nose portion mounted thereon.

### Claim 2 (depends on 1)

A projectile according to claim 1, in which at least one other charge has been pressed in front of the incendiary charge.

### Claim 3

A method of making a multipurpose projectile which comprises a penetrator and an incendiary charge surrounding a portion of the penetrator in front of a well in the bottom of the shell, in which the penetrator is inserted, wherein, upon insertion of the penetrator, the incendiary charge is inserted in the shell, which has a cylindrical cavity of constant diameter, whereupon the charge is pressed approximately over its entire cross section by means of a plunger, which has an annular pressing surface which substantially covers the entire cavity cross section, said plunger being inserted from the front end of the cavity, through the open end of the shell.