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:
Feb. 16, 1993
Filed:
Aug. 05, 1992
Bruno Nouguez, Ballancourt, FR;
Yves Bigot, Ballancourt, FR;
Jacky Groux, Fontenay Le Vicomte, FR;
Jean-Claude Derrien, Vert Le Petit, FR;
Societe Nationale des Poudres et Explosifs, Paris Cedex, FR;
Abstract
Low-vulnerability component of explosive ammunition and process for initiating a charge of low-sensitivity composite explosive. The subject of the present invention is a low-vulnerability component of explosive ammunition consisting of a preferably metallic enclosure 1 containing a charge 2 of low-sensitivity composite explosive E and, as initiating relay, a plane wave generator 3 consisting, on the one hand, of a cylindroconical cap 7 made of composite explosive A, the large base surface having a diameter d greater than the critical diameter of the explosive E, the cavity 8 of this cap 7 being filled with a composite explosive B and, on the other hand, of a reinforcer made of composite explosive C, of thickness e greater than 0.1 d, the detonation pressure of the explosive C being higher than that of the explosive E. The detonability index according to the test for detonability behind a barrier is between 90 and 200 cards in the case of the explosives A, B and C and lower than 90 cards in the case of the explosive E. The invention also relates to the process for initiating the charge 2 using the generator 3.