Patent ID: 7685939

Claim:
An initiator provided with an igniting mechanism for setting aflame an ignition charge by heat generated by an exothermic element connected via a pair of current conducting pins in response to an electric signal, said ignition charge being a slurry ignition charge which is formed mainly of a mixture consisting of zirconium as a fuel component and potassium perchlorate as an oxidizing agent component, having a weight ratio of 50 to 70% of zirconium to 30 to 50% of potassium perchlorate and which contains nitrocellulose as a binder component in a ratio of 0.1% by weight or more and 0.5% by weight or less based on a total amount of zirconium and potassium perchlorate and isoamyl acetate as a solvent in an extrapolated compounding ratio of 12.5% by weight or more and 14.0% by weight or less based on the total amount of zirconium and potassium perchlorate, said ignition charge being spread on the exothermic element and dried.