|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||295/09 ; 26/426.9 ; 26/424.8|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 3 인용 특허 : 3|
A method for installing a flange on the end of a tubular member lined with a thermoplastic liner is provided. The flange is formed with a groove having extrusion openings extending from the front to the rear surface of the flange, the groove for receiving the reformed end of the liner which is forced into the extrusion openings and extends above the front surface of the flange to provide a surface for securing with a corresponding flange.
[ What is claimed is:] [1.] A method for forming a flange on the end of a lining for a metallic pipe, comprising:forming a metallic flange having a central bore dimensioned to be fitted to one end of the metallic pipe, the flange having an outer surface and opposed rear surface, the flange formed with an internal annular groove on the outer surface and a plurality of extrusion openings extending longitudinally from the groove to the rear surface of the flange;installing the metallic flange on one end of the metallic pipe with the base of the groove at th...