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:
Nov. 26, 1996
Filed:
Nov. 18, 1994
Applicant:
Inventors:
Narayan C Saha, Lake Villa, IL (US);
Gregory J Drzewiecki, Oak Lawn, IL (US);
Chi M Lei, Chicago, IL (US);
Assignee:
Southern California Gas Company, Los Angeles, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; H05B / ; H05B / ;
U.S. Cl.
CPC ...
137315 ; 137240 ; 137318 ; 138 97 ; 1562739 ; 156381 ; 156499 ; 156556 ; 219535 ; 285 212 ;
Abstract
A removable apparatus for upgrade of an in-service pipeline without disrupting the flow of fluid within the in-service pipeline. The removable apparatus comprises at least one enclosure having a top section and a bottom section for temporarily enclosing a pipe section of the in-service pipeline. The top section and bottom sections are sealably disposable around the pipe section. A repairing mechanism for repairing the pipe section or an insertion mechanism for inserting and connecting a pipeline element to the pipe section is disposed within the enclosure.