Patent ID: 6740828
Filing Date: 2004-05-25
Classification: F42C,H01H

Abstract:
An arm and safety switch for an ammunition round, comprising:(a) a housing having an open first end and an open second end; (b) a diaphragm covering said open first end of said housing; (c) an actuator having a first end and a second end, wherein said first end of said actuator is positioned perpendicular to said diaphragm and at a first predefined distance from said diaphragm; (d) an electrically conductive pad fixed to said second end of said actuator; (e) a first firing pin pointing at said electrically conductive pad; (f) a second firing pin positioned parallel to said first firing pin and pointing at said electrically conductive pad; (g) a non-conductive plug for receiving said firing pins and securing said firing pins into said second open-end of said housing; and (h) a bi-stable snap actuating disc fixed within said housing, said disc having an opening in the center for receiving and fixing to said actuator, said disc having a first stable position whereby said conductive pad is a second predefined distance from said firing pins and a second stable position whereby said electrically conductive pad is in contact with said firing pins; whereby a launch detonation pressure less than or equal to a first predetermined pressure will cause said diaphragm to deflect within said first predefined distance, the deflection being insufficient to push said actuator and associated bi-stable snap acting disc enough to reach the snap-over point, so that said bi-stable snap acting disc is prevented from reaching the second stable position, thus precluding electrical contact between the conductive pad and firing pins, and a launch detonation pressure of at least a second predefined pressure will cause said diaphragm to deflect beyond said first predefined distance and to in-turn push said actuator, thus causing said bi-stable snap actuating disc to deflect into the second stable position causing said electrically conducting pad to come in contact with said firing pins to arm said ammunition.