USA As Represented by Secretary of the Navy

James A Petrousky

Donald J Butz

Ernest C Faccini

Joseph E Backofen

Arleigh E McCree

David W Holmes

Joseph E Backofen, Jr

Disclosed is a non-fragmenting explosive device for perforating a target injecting a material through the perforation to disrupt structure behind the target. The device is particularly adapted to safely disarm unexploded explosive devices such as bombs without detonation of the bomb. The device includes an outer covering of explosive material for explosively confining the disruptive material to a well defined shape for total injection into the target.

Shaped charge with explosively driven liquid follow through

A tamper mass including particulate material held together by a binder in a elf-contained supporting shape surrounding a concavity in a forward face containing an explosive, whereby upon detonation of the explosive, the tamper material provides initial and temporary confinement of detonation products to directing forces forward. After shock loading, the tamper material disintegrates into very fine particles, which individually contain very little energy in dispersion.

Disintegrating tamper mass

Growing community of inventors

Port Tobacco, MD, United States of America

James A Petrousky