USA As Represented by Secretary of the Navy

John Pearson

Robert G Sewell

The fragmenting single walled cylinder disclosed yields a plurality of frents having shapes and masses according to a predetermined distribution. Fragment yield is controlled by the profile and orientation of internally formed grooves.

Controlled fragmentation with fragment mix

A shaped charge that relates generally to metal moving warheads and which s as an improvement a means of increasing the explosive energy in a metal moving warhead by providing an air gap between the explosive and the metal to be displaced thereby providing, upon detonation of the explosive charge, the formation of a high velocity jet of intensified energy that makes a superior shaped charge device for use in piercing or deforming solid material.

Shaped charge

A method for manufacturing a fragmentation device which upon fragmenting duces uniform sized fragments of a predetermined shape and mass. The device is useful in antipersonnel and antimateriel systems which require uniformly sized fragments and where impact patterns having a fairly uniform distribution and predictable area coverage are needed.

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China Lake, CA, United States of America

John Pearson