Patent ID: 6070915
Filing Date: 2000-06-06
Classification: F16L,Y10S,Y10T

Abstract:
An improved coupling device for tubing, comprising a tube and an insert that is within said tube, said insert including an external receiving space and an enlarged portion having an annular groove therein, said tube being provided with a plurality of through holes, said tube being deformed to form an external annular recess corresponding to and positioned within said annular groove to fixedly retain said insert within said tube, a connecting element which is located to fixedly connect said tube and said insert, said connecting element including:(a) an exterior portion which extends around an outer wall of said tube;(b) an interior portion which is located in said receiving space of said insert and is in contact with an inner wall of said tube; and(c) a connecting portion which is located in said through holes and connects said exterior and interior portions.