Patent ID: 7237801

Claim:
A gas generating system comprising: a tubular outer housing having a longitudinal axis and at least one aperture formed therealong to enable fluid communication between an interior of the outer housing and an exterior of the outer housing; a tubular inner housing positioned within the interior of the outer housing, the inner housing including at least one aperture formed therealong to enable fluid communication between an interior of the inner housing and an exterior of the inner housing; a first tubular baffle having a plurality of corrugations formed therealong, the first baffle being positioned between the inner housing and the outer housing to define a first gas flow channel extending between the first baffle and at least one of the outer housing and the inner housing, the first tubular baffle also having an opening formed therein to enable fluid communication between the first gas flow channel and an exterior of the first gas flow channel, the plurality of corrugations being spaced apart from the at least one of the outer housing and the inner housing to provide a corresponding plurality of constricted gas flow passages extending between the corrugations and the at least one of the inner housing and the outer housing, to provide alternating compression and expansion of gases flowing along the gas flow channel.