USA as Represented by Secretary of the Navy

Joshua E Felts

Harold W Sandusky

Brian A Cole

Mary Hilker Sherlock

Kyle Matthew Beckett

Reid M McKeown

Forrest R Svingala

A fuze booster includes a first explosive charge having a cavity with an annular portion of the first explosive charge encircling a first axial portion of the cavity and a semi-annular portion partially encircling a second axial portion of the cavity. The annular portion abuts the semi-annular portion. An explosively-inert material abuts the semi-annular portion, abuts the annular portion, and partially encircles the second axial portion of the cavity. A second explosive charge abuts the explosively-inert material, abuts the semi-annular portion, and partially encircles the second axial portion of the cavity. The second axial portion of the cavity is thus completely encircled by a combination of the semi-annular portion, the explosively-inert material, and the second explosive charge.

Detonation-wave-shaping fuze booster

A friction tester for explosive material includes a cylinder with a piston disposed therein for sliding movement along the cylinder's axial dimension. The piston includes first and second opposing faces. A plate is coupled to the piston and extends away from the first face thereof along the cylinder's axial dimension. The plate includes a portion extending from the cylinder. The plate has opposing surfaces of defined surface roughness. A sample holder disposed adjacent to the cylinder holds an explosive material sample against each of the opposing surfaces of the plate at the portion thereof that extends from the cylinder. A driver coupled to the second face of the piston drives the piston in the cylinder's axial dimension such that the plate moves relative to and against each explosive material sample.

Sliding friction tester for explosive material

Growing community of inventors

Indian Head, MD, United States of America

Joshua E Felts