Connection structure for different kinds of metal tubes
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United States of America Patent
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Feb 16, 2010
Grant Date -
Aug 21, 2008
app pub date -
Jul 13, 2006
filing date -
Jul 14, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
A structure connecting dissimilar metal tubes is a bellows tube and a metal tube made of stainless steel and aluminum respectively. The bellows tube has a reinforcement portion on its outer surface. The structure includes a nipple, the reinforcement portion, and a crimp collar fitted in that order to the outside of a straight tube portion of the bellows tube. The nipple is joined to the reinforcement portion and the metal tube. A sleeve is joined to the metal tube and the crimp collar. The nipple is bonded to the inner surface of the metal tube with a resin. End faces of the reinforcement portion and the crimp collar are in contact with or located close to an end face of the metal tube.
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