Abstract: A gas generator contains a housing having a first end and a second end; a perforated first combustion chamber contained within the housing; a first gas generant contained within the first combustion chamber; a first gas generant cushion positioned between one of either the first end or the second end, and the first gas generant; and a booster chamber contained within the housing, the booster chamber extending through the first gas generant cushion to physically communicate with the second end of the housing. The gas generant cushion may have at least one concave cavity formed on one side of the cushion for providing an enhanced propellant cushion. A vehicle occupant protection system incorporating this gas generator is also contemplated in accordance with the present invention.

Abstract: A gas generating system includes a housing structured to form a booster tube mounting structure therein, and a booster tube engaged with the mounting structure so as to form a gas-tight seal therebetween and so as to be movable with respect to the mounting structure, and such that the seal is maintained during movement of the tube with respect to the mounting structure, while the tube is engaged with the mounting structure.