|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||285/21 ; 285/55 ; 285/363 ; 285/423|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 12 인용 특허 : 0|
A method an apparatus are shown for forming a flange on an end of a plastic pipe liner of the type used to line a tubular member. A reinforced disc having a rigid portion and an elastomeric portion is placed about the liner exterior and moved into position flush with the flanged end of the tubular member. A retaining ring is placed about the reinforced disc and the disc and liner exposed end are heated to render the materials malleable. A forming unit is then used to apply force to the liner to flow the liner into a reformed shape having a greater extern...
An improved flange fitting for a tubular member having flanged ends and having a plastic pipe liner with opposite ends installed therein, at least one of the ends extending at least partly from the tubular member, the improved flange fitting comprising: a reinforced disc located about the exterior of the extending liner end flush with the flanged end of the tubular member, the reinforced disc having a rigid internal member which is encapsulated within an elastomeric body, the reinforced disc also having a peripheral edge; a reformed end on the plastic pi...