Patent ID: 8794152

Claim:
In a sealer element for a device comprising an energy source and a pyrotechnic delay train, the sealer element having an input end and an output end and comprising a reactive material; the improvement comprising that the sealer element comprises a strip of reactive material defining at least one reaction path extending in a straight line for the entire distance from the input end to the output end, the reactive material being accessible for signal transfer communication at both the input end and the output end, the sealer element being configured to be disposed between such energy source and such pyrotechnic delay train, with the output end of the sealer element being in signal transfer communication with such pyrotechnic delay train, the reactive material comprises a solid material comprised of at least two different materials which, upon being energized, react with each other in an exothermic and self-sustaining reaction to generate a reaction product, and the reaction product is impermeable to gas flow therethrough including combustion gases generated by ignition and burning of the pyrotechnic delay train.