Land vehicles – Wheeled – Attachment
Patent
1990-12-18
1992-02-11
Hill, Mitchell J.
Land vehicles
Wheeled
Attachment
280736, B60R 2128
Patent
active
050870700
ABSTRACT:
An inflator generates gas for inflating a vehicle occupant restraint. The inflator comprises a housing. The housing has a chamber for gas generating material and gas outlet openings through which gas flows from the housing into the restraint. A filter in the housing provides a gas flow path to the gas outlet openings. The filter filters and cools the gas as it flows in the gas flow path. The filter comprises a plurality of filter layers. At least one of the filter layers has a higher resistance to gas flow than at least one other of the filter layers. The filter layer of higher resistance to gas flow has a portion extending between and engaging the housing and the other filter layer to provide a gas flow sealing zone adjacent the housing. The gas flow sealing zone has a resistance to gas flow higher than the resistance to gas flow of the gas flow path.
REFERENCES:
patent: 4017100 (1977-04-01), Gehrig et al.
patent: 4131299 (1978-12-01), Ono et al.
patent: 4322385 (1982-03-01), Goetz
patent: 4878690 (1989-11-01), Cunningham
patent: 4902036 (1990-02-01), Zander et al.
patent: 4960448 (1990-10-01), Zievers
Novak Conrad M.
O'Loughlin John P.
Dickson Paul
Hill Mitchell J.
TRW Inc.
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