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:
Feb. 28, 1984
Filed:
Feb. 11, 1982
Applicant:
Inventor:
Douglas K Chick, Elstree, GB;
Assignee:
Insituform International, Inc., Channel Islands, US;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264 36 ; 156287 ; 156294 ; 264269 ; 264516 ;
Abstract
The method discloses the lining of a lateral connection to a pipeline. The method is by remotely inserting a unit in the pipeline and everting a flexible lining tube out of an outlet in the unit directly into the lateral connection. The lining may be a flexible lining which subsequently hardens to form a rigid pipe inside the connection. The eversion of the lining tube is by means of a fluid pressure differential.