Patent ID: 6131515
Filing Date: 2000-10-17
Classification: F42B,F42C

Abstract:
An electric primer for small arms ammunition comprising:(a) an electrically conductive cup having a top and a bottom having an aperture formed in the bottom;(b) at least one electrically conductive explosive composition within the cup;(c) a disc in the bottom of the cup, the disc comprising top and bottom surfaces and a central conductive portion adjacent the aperture in the bottom of the cup, the central conductive portion having conductive surfaces on the top and bottom surfaces of the disc, and wherein a maximum diameter of at least the conductive surface on the bottom surfaces of the disc is smaller than a diameter of the aperture, the disc further comprising an annular portion of electrically insulating material separating the cup from the central conductive portion; and(d) a retaining means on top of the explosive.