Abstract: This invention relates to an electric device for the ignition of pyrotech substances and more particularly an electric device which operates by electromagnetic induction.The device comprises: An induced member 22 placed in a cartridge containing a pyrotechnic substance within a circular opening of the bottom of the case 20, and an inductor located in a cavity 24 made in the thickness of a firing plate 23. The induced member has at least one open turn 31 connected to at least one heating filament 32, mounted on a thin insulating pellet 30, the inductor is a spiroidal winding 25 whose frequency defines the operating frequency of the generator; the inductor comprises a thermal protection means, a mechanical protection means and sealing means.The device can be used in particular in the field of artillery.
October 15, 1979
Date of Patent:
September 21, 1982
Etat Francais represente par le Delegation General pour l'Armement
Christian G. Cannavo, Georges Cousin, Andre Espagnacq, Jacques X. Frayssac, Loic Y. Laine, Daniel J. Midrouillet, Andre M. Pintenat, Jean B. Reboux