Patent ID: 6880853

Claim:
A gas generator for an air bag comprising, in a cylindrical housing, provided at its peripheral wall with a plurality of gas discharging ports, which housing is longer in the axial direction than in the radial direction, an ignition means to be actuated upon the impact, and a gas generating means to be ignited and burnt by the ignition means, wherein a combustion chamber for accommodating the gas generating means and a filter means accommodating chamber for accommodating a filter means are formed in the housing adjacent to each other in the axial direction and these chambers communicate with each other, the combustion chamber accommodating the gas generating means is separated from the filter means accommodating chamber with a partitioning member curved into a convex shape towards the inside of the combustion chamber and having a through-hole, and moisture-proofing of the housing is achieved by a seal tape which closes the gas discharging ports.