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.

Date of Patent:
Mar. 26, 2019

Filed:

Jun. 12, 2017
Applicant:

Corrpro Companies, Inc., Medina, OH (US);

Inventors:

Matthew Burbridge, Calgary, CA;

Levi Blumhagen, Alberta, CA;

Shawn Poworoznik, Calgary, CA;

Assignee:

Corrpro Companies, Inc., Medina, OH (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 1/036 (2006.01); F16L 58/10 (2006.01); F16L 1/028 (2006.01); F16L 9/02 (2006.01); F16L 9/19 (2006.01); E21B 7/20 (2006.01); E21B 17/00 (2006.01);
U.S. Cl.
CPC ...
F16L 58/1081 (2013.01); E21B 7/20 (2013.01); E21B 17/003 (2013.01); F16L 1/028 (2013.01); F16L 1/036 (2013.01); F16L 9/02 (2013.01); F16L 9/20 (2013.01); F16L 58/1036 (2013.01);
Abstract

A carrier pipe is protected from corrosion by being received inside a casing at a location above ground. The casing, which can be formed from a polymer, defines a gap extending around an exterior surface of the carrier pipe. In one embodiment, the gap is substantially filled with a potting material having a corrosion-resistant property. In another embodiment, a self-contained impressed current cathodic protection system is received in the gap. A pull head is installed on the carrier pipe and/or casing for pulling the pipe assembly, including carrier pipe, casing, and elements received in the gap, into an underground bore as a single unit. In some embodiments multiple pipe assemblies are pulled together into the same bore.


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