Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Solid reactant type
Patent
1991-09-06
1993-06-01
Warden, Robert J.
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Solid reactant type
422166, 280740, 55487, 55523, 102530, B60R 2100
Patent
active
052157210
ABSTRACT:
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 generating composition. A cooling chamber is provided which communicates via the primary gas exhausting port with the combustion chamber. In the cooling chamber is disposed a secondary filter which cools gas coming out of the combustion chamber and filters the burning residue in the gas. A secondary gas exhausting port is formed in the cooling chamber to discharge the gas filtered by the secondary filter. The secondary filter includes a ceramic fiber sheet with a bulk density of 0.10 to 0.30 g/cm.sup.3 and a filtering period of 1.0 to 6.0 sec/300 cc per 1 mm in thickness (time needed to pass 300 cc of gas through the filter).
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Jan. 1992, European Search report.
Sasaki Nobuyoshi
Tasaki Youji
Nippon Oil and Fats Co. Ltd.
Thornton Krisanne M.
Warden Robert J.
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