Fluid supply for occupant restraint system

Abstract From the Canadian patent

A fluid supply is provided for inflating an expandable confinement of a vehicle occupant restraint system of the type activated in response to a vehicle collision signal. The fluid supply includes a housing defining a fluid discharge port for directing fluid flow from the housing and a gas generating means disposed within the housing. The gas generating means includes combustible means having a sustaining charge comprising a plurality of layers of granulated material the layers being, approximately equal by weight and screen means disposed between, each pair of adjacent layers of the sustaining charge. Each of the screen means has a mesh substantially finer than the granules of material in …