Patent ID: 6547275
Filing Date: 2003-04-15
Classification: B01D,B60R

Abstract:
A gas generator for an air bag, comprising:a housing containing no compressed gas therein and having first and second gas discharge ports; a first combustion chamber provided in said housing; a second combustion chamber provided in said housing; first ignition means and second ignition means attached to said housing, and selectively activated upon an impact; first gas generating means ignited and burnt only by the activation of said first ignition means to generate a first inflation gas; second gas generating means ignited and burnt only by the activation of said second ignition means to generate a second inflation gas; and first and second sealing means for closing said first and second gas discharge ports, respectively, wherein said first and second sealing means are broken in multiple stages by a breaking pressure due to at least one of a difference in diameters of said first and second gas discharge ports and a difference in thicknesses of said first and second sealing means.