Thermal arming system

Abstract

Abstract 1. An improved arming mechanism for use in a missile comprising: a nose member affixed to a cylindrical housing member, a spring loaded striker slidably mounted in said nose member, the first end of said striker protruding from the outermost surface of said nose member, the second end of said striker extending into said housing, a battery positioned in that end of said cylindrical housing member adjacent said nose member, a switch positioned between said second end of said striker and said battery and affixed to one end of said battery, said switch being so arranged as to be contacted and closed by said second end of said striker when said first end of said striker is pressed against said spring, a booster charge in the opposite end of said housing, a barrier adjacent the booster charge, a flash port in said barrier, an arming rotor having an arm extending therefrom, said rotor positioned intermediate said barrier and said battery, a detonator in said arm provided with leads connecting it to a pair of contacts on one surface of said arm, a pair of contacts connected to said switch, the pair of contacts on the arm surface being in circular alignment with the pair of switch contacts, a spiral bimetallic heat-responsive member having one end anchored to said battery and the other end anchored to said rotor, said spiral member unwinding in response to heat and causing said rotor to rotate, the rotation of said rotor arming said fuze by aligning said detonator with said flash port and pressing the pair of contacts on said arm into engagement with the switch contacts, said spiral member winding upon subsequent cooling and causing rotation of said rotor back to the position where the detonator is out of alignment with said flash port, said fuze thereby being disarmed.

Inventors

• 👤 Jacob Rabinow

Bibliographic Details