Patent ID: 6607213
Filing Date: 2003-08-19
Classification: B60R,C06D

Abstract:
A gas generator for an air bag apparatus comprising charging means which is sealed after a flammable fluid is charged, a first bottomed cylindrical vessel having an open end to which a first lid member is welded, a second bottomed cylindrical vessel welded to the first lid member to form a first chamber filled with said charged flammable fluid and having a first vent opening occluded by a first occluding member formed in said lid member, a second chamber filled with said flammable fluid and having a volume greater than that of said first chamber and having a second vent opening occluded by a second occluding member which is capable of being in communication with said first chamber, at least one communication hole formed in a portion of a wall forming said first chamber and bringing said first and second chambers into communication with each other, first ignition means for igniting said flammable fluid in said first chamber, second ignition means for igniting said flammable fluid in said second chamber, and a diffuser which can be in communication with said first chamber through said first vent opening.