Patent Number: 6,305,286

Title: Preparation of an igniter with an ultraviolet cured ignition droplet

Abstract: An electrically actuatable igniter (24) includes a header (50), a pair of electrodes (40) and (42) in the header (50), a heating element (44) electrically connected between the electrodes (40) and (42), and a dome shaped ignition droplet (46) covering and adhering to the heating element (44). The ignition droplet (46) comprises an intimate mixture of a cured free-radical resin binder, which is at least a substantially cured in situ by ultraviolet radiation, and an ultraviolet radiation absorbing particulate pyrotechnic material in a substantial proportion effective for sustained combustion in the mixture. The resin binder prior to curing is a liquid and has a surface tension, viscosity, and wetability with the heating element (44) to achieve the dome configuration.

Inventors: Fogle, Jr.; Homer William (Mesa, AZ), Chatley, Jr.; Glenn Raymond (Mesa, AZ)

Assignee: TRW Inc.

International Classification: C06C 7/00 (20060101); F42B 3/12 (20060101); F42B 3/00 (20060101); F42B 003/10 ()

Expiration Date: 10/23/2018