Pipe joints or couplings – Nonmetal to metal – Internal member
Reexamination Certificate
2006-07-13
2010-02-16
Dunwoody, Aaron M (Department: 3679)
Pipe joints or couplings
Nonmetal to metal
Internal member
C285S226000, C285S256000, C285S382700
Reexamination Certificate
active
07661720
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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U.S. Appl. No. 11/551,044, filed Oct. 19, 2006, Katayama, et al.
Katayama Toshiyuki
Matsui Masamichi
Nakano Yoshio
Yagi Takashi
Dunwoody Aaron M
Kee Fannie
Nichirin Co., Ltd.
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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