The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 22, 2008
Filed:
Mar. 02, 2004
Tomohide Aoki, Aichi-ken, JP;
Hiroaki Kito, Aichi-ken, JP;
Hiroshi Nishi, Aichi-ken, JP;
Masayuki Nakagawa, Aichi-ken, JP;
Tomohide Aoki, Aichi-ken, JP;
Hiroaki Kito, Aichi-ken, JP;
Hiroshi Nishi, Aichi-ken, JP;
Masayuki Nakagawa, Aichi-ken, JP;
Toyoda Gosei Co., Ltd., Aichi-ken, JP;
Abstract
A welding jointfor a fuel tank reduces the amount of fuel vapor in the fuel tank that escapes into the atmosphere. The fuel tank welding jointa joint main bodyand a barrier layer laminated on the surface of the joint main body. The joint main bodyis formed of a first resin material weldable to the wall of the fuel tank FT, and the barrier layeris formed of a second resin material that is adhesively and chemically reactive with the first resin material and that is more fuel-impermeable than the first resin material. An end portionformed so as to be exposed to the outside at the end of a tube portionis formed on the barrier layer. When the barrier layeris injection molded on the surface of the joint main body, the end portionis formed by the flow of the second resin material through the end of the tube portionto increase the adhesive strength of the end face where the parts are joined.