Patent ID: 7117796

Claim:
An igniter comprising: a housing having a first end and a second end, said housing bored continuously there through to define, in succession, a first bore region that begins at said first end, a second bore region, a third bore region, and a fourth bore region that terminates at said second end; a firing pin slidingly fit in said first bore region and extending from said first end of said housing, said firing pin terminating in a tip that protrudes into said second bore region when said firing pin is fully seated in said first bore region; a primer press-fit in said second bore region; a cup having an open end and a closed end, said cup fitted substantially in and sealed to said fourth bore region with said closed end substantially coincident with said second end of said housing, said closed end being structurally weakened at a portion thereof; and a slug of pyrotechnic material fitted in said cup, said slug having a bore formed continuously there through and substantially centrally aligned with said third bore region, said pyrotechnic material converting at least partially to molten metallic reaction products upon ignition.