The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 07, 1976
Filed:
Sep. 16, 1974
Virgil F Lemley, Escondido, CA (US);
Glenn E Seay, La Jolla, CA (US);
Perry B Ritter, Encinitas, CA (US);
Systems, Science and Software, La Jolla, CA (US);
Abstract
A reliable low voltage, electrically actuated, all secondary explosive detonator device is disclosed which is thermally and chemically stable and is relatively insensitive to shock and electrostatic charge. The device includes a cylindrical body having a chamber containing a donor secondary explosive, an elongated bore extending from the donor explosive to an acceptor secondary explosive, with a generally flat annular shoulder located at the junction of the bore and the chamber, an impactor disc positioned within the chamber against the shoulder and blocking the bore and low voltage electrical deflagration initiating means positioned within the chamber and extending outwardly of the body. Application of low voltage current to the conductors initiates deflagration of the donor explosive so that the central portion of the impactor disc is sheared and accelerated through the bore striking the acceptor explosive with sufficient velocity to detonate the acceptor explosive.