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:
Apr. 20, 1982
Filed:
Nov. 24, 1980
Applicant:
Inventors:
Tetsui Suetoshi, Kawachinagano, JP;
Munetaka Kinugasa, Nishinomiya, JP;
Koichi Hosoya, Ashiya, JP;
Mitsuo Yamamoto, Minamikawachigun, JP;
Assignee:
Osaka Gas Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
156294 ; 138 97 ; 156 94 ; 156295 ;
Abstract
A method of internally lining an installed pipe, which may be used for various types of pipelines such as those for transmitting town gas, natural gas, petroleum, and water. According to the invention, a flexible liner tube is placed inside an installed pipe, and then a liquid adhesive agent is introduced between the pipe and the tube. In this condition, an object is passed through the tube whereby the liquid adhesive agent acts to make the tube adhere to the interior wall of the pipe.