Dual stage inflator
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United States of America Patent
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-
Nov 5, 2002
Issued Date -
N/A
app pub date -
Feb 23, 1999
filing date -
Apr 24, 1997
priority date (Note) -
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Abstract
A non-hybrid pyrotechnic filterless inflator, i.e., gas generator, for an automotive passive restraint air bag having a generally discoidally-shaped pressure vessel having a diameter that preferably is greater than or about equal to its height formed of a cup-shaped closure cap and a base member and having at least one exhaust nozzle for directing gaseous products out of the inflator and into the air bag. The pressure vessel contains two separated and independently initiated initiator assemblies. By initiating either one or both initiator assemblies, the inflator can generate a modulated gas output between a first minimum output level and a second maximum output level in response to passenger and driver conditions.
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