USA As Represented by Secretary of the Navy

Walter Hubbard

Daniel J McCarthy

Angel Diaz

David Rivera Marchand

Nicholas Shaker

Michael G Craft

A process that uses a lodged projectile removal charge (LPRC) apparatus to remove a projectile jammed in a cannon's gun tube. The LPRC is positioned coaxially and offset from the projectile, and the gun tube is filled with water. The charge is detonated producing a shock wave that disintegrates the LPRC apparatus and pressurizes the water. The pressurized water produces a radial hydraulic force against an interior wall of the gun tube, an axial hydraulic force against the projectile pushing the projectile toward the chamber, and produces an opposing expansion of explosive gases that blasts out most of the water in the gun tube. The process is less likely to damage the gun tube. The LPRC may be made using a 3D printer.

Growing community of inventors

La Plata, MD, United States of America

Walter Hubbard