Linear shaped charge

Patent metadata

Field	Value
Publication number	US-2016202027-A1
Application number	US-201514870934-A
Country	US
Kind code	A1
Filing date	Sep 30, 2015
Priority date	Jan 8, 2015
Publication date	Jul 14, 2016
Grant date	—

Abstract

Linear shaped charges are described herein. In a general embodiment, the linear shaped charge has an explosive with an elongated arrowhead-shaped profile. The linear shaped charge also has and an elongated v-shaped liner that is inset into a recess of the explosive. Another linear shaped charge includes an explosive that is shaped as a star-shaped prism. Liners are inset into crevices of the explosive, where the explosive acts as a tamper.

First claim

What is claimed is:

1 . A linear shaped charge comprising:
an explosive formed as an isosceles triangular prism that comprises an elongated v-shaped recess that extends along a front face of the explosive, the explosive having an apex angle, a height of the front face is based upon the apex angle; and an elongated v-shaped liner inset into the v-shaped recess of the explosive, the elongated v-shaped liner having an apex angle that is greater than the apex angle of the explosive.

2 . The linear shaped charge of claim 1 , the elongated v-shaped liner formed of annealed copper.

3 . The linear shaped charge of claim 2 , the annealed copper having a purity of between 99% and 100%.

4 . The linear shaped charge of claim 1 , the apex angle of the elongated v-shaped liner is between 40 degrees and 90 degrees.

5 . The linear shaped charge of claim 1 , further comprising a tamper shaped as a prism that comprises a recess that extends along a length of a face of the tamper, the explosive inset into the recess of the tamper.

6 . The linear shaped charge of claim 5 , the tamper comprises lead or steal.

7 . The linear shaped charge of claim 5 , the prism being a rectangular prism.

8 . The linear shaped charge of claim further comprising a second explosive formed as a second isosceles triangular prism that comprises a second v-shaped recess that extends along a front face of the second explosive, an apex angle of the second explosive being smaller than an apex angle of the second v-shaped recess, a base of the second explosive being coplanar with a base of the explosive and partially overlapping the base of the explosive.

9 . The linear shaped charge of claim 8 , further comprising a third explosive formed as a third isosceles triangular prism that comprises a third elongated v-shaped recess that extends along a front face of the third explosive, an apex angle of the third explosive being smaller than an apex angle of the third elongated v-shaped recess, a base of the third explosive being coplanar with the base of the explosive and the base of the second explosive, the base of the third explosive partially overlapping the base of the explosive and the base of the second explosive.

10 . The linear shaped charge of claim 1 , the v-shaped liner has a thickness, the front face of the explosive has a height, the thickness of the v-shaped liner is between 3.5% and 5% of the height of the front face of the explosive.

11 . A linear shaped charge comprising:
an explosive formed as a star-shaped prism such that the explosive has a pair of star-shaped bases and a plurality of sides that extend between edges of the pair of star-shaped bases; and an elongated liner positioned in contact with at least two sides of the plurality of sides of the explosive.

12 . The linear shaped charge of claim 11 , the elongated liner positioned in contact with each side of the plurality of sides of the explosive.

13 . The linear shaped charge of claim 11 , further comprising a tamper inset into a crevice of the explosive.

14 . The linear shaped charge of claim 13 , the tamper being high density polyethylene.

15 . The linear shaped charge of claim 11 , wherein the explosive is an RDX-based explosive.

16 . The linear shaped charge of claim 15 , the explosive being C-4.

17 . The linear shaped charge of claim 11 , wherein the explosive is 1200 grain per foot explosive.

18 . The linear shaped charge of claim 11 , the base faces having six points, the plurality of sides being twelve sides.

19 . The linear shaped charge of claim 11 , the liner being annealed copper having a purity of between 99% and 100%.

20 . A method for creating a linear shaped charge, the method comprising:
shaping an explosive as a star-shaped prism such that the explosive has a pair of star-shaped bases and a plurality of sides that extend between edges of the star-shaped bases; and positioning an elongated v-shaped copper liner adjacent to two sides of the explosive, such that the v-shaped liner forms a planar jet when the explosive is detonated.

Assignees

• Sandia Corp

Inventors

• Peterson David
• Stofleth Jerome H
• Saul W Venner

Classifications

• F42B1/036

  Manufacturing processes therefor {(F42B33/0214 - F42B33/0292 take precedence)} · CPC title

• F42B1/032

  characterised by the material of the liner · CPC title

• F42B1/028 Primary

  characterised by the form of the liner · CPC title