Pipe joints or couplings – Molded joint
Reexamination Certificate
2007-04-11
2010-11-09
Dunwoody, Aaron (Department: 3679)
Pipe joints or couplings
Molded joint
C285S288100, C285S423000
Reexamination Certificate
active
07828334
ABSTRACT:
A joint part including a welding portion with a rim of an opening of a fuel resin tank as well as a high barrier property on its interface. The joint part has a multi-layer structure including a barrier layer and at least one of an inner layer and an outer layer coaxially laminated on an inner periphery and/or an outer periphery of the barrier layer, respectively, wherein the barrier layer is formed by a compound material composed of one or more of fuel permeation-resistant resin, such as ethylene vinyl alcohol copolymer, polyamide polyester or liquid crystal polymer, and polyethylene, while the inner layer and the outer layer are composed of high-density polyethylene or modified high-density polyethylene.
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Japanese Decision of Patent Grant dated Jun. 29, 2010, issued in corresponding Japanese Patent Application No. 2006-109934.
Dunwoody Aaron
Kee Fannie
Tokai Rubber Industries Ltd.
Westerman Hattori Daniels & Adrian LLP
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