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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.:

US 10683960 B1

PDFFull Text
Date of Patent:
Jun. 16, 2020

Filed:

Nov. 29, 2017

Apparatus and method to repair the junction of a sewer main line and lateral pipe

Applicant:

Lmk Technologies, Llc, Ottawa, IL (US);

Inventor:

Larry W. Kiest, Jr., Ottawa, IL (US);

Assignee:

LMK Technologies, LLC, Ottawa, IL (US);

Attorney:

Nyemaster Goode, P.C.

Primary Examiner:

Philip C Tucker

Assistant Examiner:

Brian R Slawski

Int. Cl.
CPC ...
B29C 73/00 (2006.01); B29C 65/00 (2006.01); B32B 43/00 (2006.01); B65C 3/26 (2006.01); B65C 3/16 (2006.01); B32B 37/00 (2006.01); B29D 22/00 (2006.01); B32B 1/08 (2006.01); F16L 55/16 (2006.01); F16L 55/165 (2006.01); F16L 55/179 (2006.01); B29C 65/48 (2006.01); B29C 63/36 (2006.01); B29C 65/52 (2006.01); B29C 63/34 (2006.01); B29C 63/28 (2006.01);
U.S. Cl.
CPC ...
F16L 55/1651 (2013.01); F16L 55/1654 (2013.01); F16L 55/1656 (2013.01); F16L 55/179 (2013.01); B29C 63/28 (2013.01); B29C 63/341 (2013.01); B29C 63/36 (2013.01); B29C 65/484 (2013.01); B29C 65/525 (2013.01); B29C 66/301 (2013.01); B29C 66/5221 (2013.01); B29C 66/52241 (2013.01); B29C 66/634 (2013.01); Y10T 156/1033 (2015.01); Y10T 428/139 (2015.01);
Abstract

A liner assembly and method for lining a damaged pipe junction between a main and lateral pipe is provided. The liner assembly includes a main liner member and a lateral liner tube. A collar disposed near the juncture between the main liner member and lateral liner tube is impregnated with a liquid hydrophobic or hydrophilic material capable of curing in a flexible or rigid state with the material expanding in the presence of water. The hydrophobic or hydrophilic material can also be applied without the use of the collar. When the liner assembly is pressed against the main and lateral pipes, a portion of the hydrophilic or hydrophobic material is forced into the damaged pipe junction.

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