Flexible detonator integrated with directly written energetics

US8573123B1 · kind B1 · utility

Assignee

• The United States of America as represented by the Secretary of the Army · US

Inventors

• Brian E. Fuchs · Hackettstown, US
• James L. Zunino, III · Montville, US
• Daniel Schmidt · Madison, US
• Daniel Stec, III · Mount Clemens, US
• Anne Marie Petrock · Flanders, US

Key dates

• Filing date: May 17, 2011
• Grant date: Nov 5, 2013
• Expiry date: May 23, 2032

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F42B3/195
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A method of forming a conductive ink bridge wire EED on either a flat or curved substrate, wherein a finely detailed bridge wire EED is printed on the substrate using a nano-particle conductive material applied with a commercially available piezoelectric drop-on-demand ink jet printer—which bridge wire is subsequently coated with a first primary explosive layer, an optional second transition explosive layer, and a third secondary explosive layer—such that upon creating a current through the bridge wire EED, the bridge wire is heated and the explosive layers detonate in turn, and in turn initiate the detonation of the device to which the detonator is attached.