Method of forming a housing of a vehicle occupant protection apparatus
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United States of America Patent
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-
Jul 21, 2009
Grant Date -
May 17, 2007
app pub date -
Nov 7, 2005
filing date -
Nov 7, 2005
priority date (Note) -
Expired
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Abstract
A method of forming a dual chamber seamless tube (64) includes providing a slug of steel (56) and cold working a first end (70) of the slug (56) to form a first chamber (114) and cold working a second end (72) of the slug (56) to form a second chamber (116). The first and second chambers (114 and 116) are axially aligned and separated by a wall portion (126) of the tube (64).
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