Filter for airbag inflator using variable expanded metal
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United States of America Patent
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Nov 2, 2010
Issued Date -
N/A
app pub date -
May 27, 2008
filing date -
May 27, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
An airbag inflator that includes a pyrotechnic material capable of producing a quantity of gas during deployment. The inflator also includes a filter. The filter may be an expanded metal filter that is wrapped about the pyrotechnic material. When this filter is wrapped about the pyrotechnic material, the filter forms a plurality of layers having holes that are a different size. This filter also includes a first set of barriers and a second set of barriers that are positioned exterior of the first set of barriers, the second set of barriers being offset from the first set of barriers. Gas passing through the filter will encounter the first set of barriers, be re-directed, encounter the second set of barriers, be re-directed, and then flow out of the filter.
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