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:
Mar. 20, 1990
Filed:
May. 18, 1988
Applicant:
Inventor:
James R Reaux, St. Martinville, LA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
138 97 ; 138 89 ;
Abstract
Replacing a section of a pipeline by indenting the pipeline from the outside to provide a stop shoulder on the inside adjacent the section to be replaced. Positioning and securing an anchoring and seal pig in the pipeline against the stop shoulder, removing the section of the pipeline to be replaced including the stop shoulder, replacing a new section, and releasing and removing the anchoring and seal pig in order to provide space for the replacement section. A part of the anchoring and seal pig is removed prior to replacing a new section.