Gas generator ignited by lamina or film

Details Gas generator ignited by lamina or film Gas generator ignited by lamina or film

1992-02-18

1994-10-04

Nelson, Peter A.

Ammunition and explosives

Powder form

Having embedded reinforcing or burning control means

102290, C06B 4500

Patent

active

053516192

ABSTRACT:
A vehicle occupant safety restraint gas generator is provided in which the ignition system for the propellant comprises a pyrotechnic layer (22), e.g. a reactive film, preferably comprising a substrate of oxidizing polymeric film such as polytetrafluoro-ethylene (PTFE) having at least a portion of its surface covered with a layer of oxidizable material, for example magnesium, which may be vapour-deposited on the surface. The propellant is preferably a propellant train (12, 14, 16, 18) which comprises a plurality of adjacent propellant grains such as toroidal discs which surround the pyrotechnic layer or are completeley encased thereby. The gas generator is simpler and more economical to manufacture, and has improved safety during use.

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U.S. Statutory Invention Registration, No. H169, Published Dec. 1986, Mackenzie et al., "Ignition Composition".

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