An arming-firing device that provides handling safety in a rocket motor. arming-firing device provides pyrotechnic (out-of-line) and electrical (open circuit) safety features wherein the arming-firing device is armed by rotating a mechanical rotor by a solenoid that aligns multiple prongs of the barrier...http://www.google.de/patents/US4278026?utm_source=gb-gplus-sharePatent US4278026 - Rocket motor igniter, arming firing device
