Patent ID: 7293797

Claim:
An inflator, comprising: a cylindrical inflator housing which is closed at one end thereof and having an opening at the other end, and in which a pressurized gas is charged; a diffuser portion connected to the opening of the inflator housing, and having a gas discharge port therein; a rupturable plate that closes at least one portion of a gas discharge passage, the gas discharge passage extending from the inflator housing to the gas discharge port of the diffuser portion; an igniter including an igniting portion covered by a cup and provided within the diffuser portion such that an axial direction of the inflator housing is orthogonal to an axial direction of the igniter, the igniter generating a combustion product upon activation thereof; and a fragile portion provided in a peripheral surface of the cup and opposing the rupturable plate, such that the combustion product is directed towards a single direction.