A gas generating device for supplying gas in an air bag or the like is provided with a gas generating composition, which is burned by an ignitor to generate gas, and a primary filter for filtering the burnt gas. The gas generating composition and the filter are placed in a combustion chamber having a primary gas exhausting port. The primary filter is chemically inactive with respect to the burnt procedure of the gas generating composition. The filter has a metal screen whose melting point is equal to or higher than the burning temperature of the gas gene...
A gas generating device comprising: a combustion chamber having a primary gas exhaust port; a gas generating composition disposed within said combustion chamber that will burn to generate a burnt gas when ignited; igniting means disposed proximate said generating composition for igniting the gas generating composition; a primary filter disposed within said combustion chamber for filtering burning residue from the burnt gas; a cooling chamber communicating with the combustion chamber via the primary gas exhaust port; a secondary filter, disposed in the co...
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