Patent ID: 6179348
Filing Date: 2001-01-30
Classification: F16L

Abstract:
A fitting for connecting one tube to another tube or an associated device, said fitting comprising a fastener for engagement of a two-plied section of the tube including a folded back portion which is formed by folding or turning back one end section of said tube outwardly onto itself and forming a U-shaped end, and a fitting body for fitting into said fastener;said fastener having an engaging portion for receiving said two-plied section of said tube, a contact portion for contact with the outer surface of said folded-back portion of said tube, and a threaded portion formed on the inner surface thereof;said engaging portion, said contact portion and said threaded portion being axially aligned and located adjacent to each other respectively, providing a narrow outer fitting diameter;said fitting body including a cylindrical section which has an end for abutting against the U-shaped end of said two-plied section of said tube;said fitting body being axially aligned with said tube body and providing a smooth straight passage through the tube and the fitting body; andsaid cylindrical section being provided with a threaded portion on the outer surface thereof.