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:
Aug. 26, 2003
Filed:
May. 30, 2001
Takahiro Nishiyama, Aichi-ken, JP;
Kouyou Fujimori, Gifu-ken, JP;
Tokai Rubber Industries, Ltd., Komaki, JP;
Abstract
A method of connecting a resin hose to a metal pipe comprising the steps of: forming a fluororubber coating layer on an inner peripheral surface of the resin hose; forming a lubricating layer of a fluorine-containing lubricant on an inner peripheral surface of the fluororubber coating layer; and inserting an end portion of the metal pipe into an end portion of the resin hose formed with the lubricating layer. Fluorine atoms in a fluororubber molecular skeleton are hydrogen-bonded to hydroxyl groups introduced in a metal of the metal pipe and therefore the adhesion between the resin hose and the metal pipe is enhanced for improvement of the sealing property. Further, the lubricating layer facilitates the insertion of the metal pipe into the resin hose for the connection therebetween.