US 6,386,110 B1 · Deforming charge assembly and method of making same

Abstract

A deforming charge assembly is provided which has an inner and an outer cylinder formed from carbon fiber. Each of the inner and outer cylinders have an inner circumference surface having an inner diameter and an outer circumference surface having an outer diameter. The inner diameter of the outer cylinder is greater than the outer diameter of the inner cylinder. Each of the inner and outer cylinders have a first layer of circumferentially wound carbon fiber, a second layer of unidirectional carbon fiber sheet and a plurality of layers of carbon fibers circumferentially wrapped around the second layer. A plurality of sympathetic detonation barrier members are provided and have an inner surface in contact with the outer circumference surface of the inner cylinder and an outer surface in contact with the inner circumference surface of the outer cylinder.

Claims16

Dependent claims

A deforming charge assembly comprising

an inner and an outer cylinder formed from carbon fiber, each of said inner and outer cylinders having an inner circumferential surface having an inner diameter and that outer circumferential surface having an outer diameter, said inner diameter of said outer cylinder is greater than said outer diameter of said inner cylinder, each of said inner and outer cylinders having a first layer of circumferentially wound carbon fiber, a second layer of unidirectional carbon fiber sheet and a plurality of layers of carbon fibers circumferentially wrapped around said second layer,
a plurality of sympathetic detonation barrier members having an inner surface in contact with said outer circumferential surface of said inner cylinder, said barrier members having an outer surface in contact with said inner circumferential surface of said outer cylinder.

A method for making a deforming charge assembly comprising the steps of:

circumferentially winding a carbon fiber around an inner mandrel to form a first layer of an inner cylinder,
wrapping a unidirectional carbon sheet around the first layer of the inner cylinder to form a second layer of the inner cylinder,
circumferentially winding a carbon fiber around the second layer of the inner cylinder to form a plurality of outer layers,
coating the inner cylinder with epoxy resin,
positioning an outer mandrel around the inner cylinder and in contact therewith, which outer mandrel has slots extending from one end of the outer mandrel towards the other end of the outer mandrel,
positioning a steel sympathetic detonation barrier strip and strips of plastic on each side of the barrier strip in each of the slots in the outer mandrel,
circumferentially winding a carbon fiber around the outer mandrel to form a first layer of an outer cylinder,
wrapping a unidirectional carbon sheet around the first layer of the outer cylinder to form a second layer of the outer cylinder,
circumferentially winding a carbon fiber around the second layer of the outer cylinder to form a plurality of outer layers,
coating the outer cylinder with epoxy resin,
removing the outer mandrel from between the inner and outer cylinders and the inner mandrel from the inner cylinder.

8 more elements

Dependencies are inferred from the claim text.

Deforming charge assembly and method of making same

Life of this patent

Deforming charge assembly and method of making same

Life of this patent

Abstract

Claims16