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. 16, 2016
Filed:
Jul. 10, 2014
Applicant:
Liqui-force Sewer Services, Inc., Kingsville, CA;
Inventor:
Darcy Warren, Leamington, CA;
Assignee:
Liqui-Force Sewer Services, Inc., Kingsville, Ontario, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 55/16 (2006.01); F16L 55/165 (2006.01);
U.S. Cl.
CPC ...
F16L 55/1654 (2013.01); F16L 55/1656 (2013.01);
Abstract
A system for installing and curing a cured in place pipe liner includes a bladder with a terminal end and an originating end that is inflatable by an inflating medium and a return conduit within the bladder that extends from the terminal end to the originating end of the bladder. The return conduit includes an opening near the terminal end for passage of the inflating medium between the return conduit and an interior cavity of the bladder. A control valve is disposed on the return conduit and is configured to control flow of the bladder inflating medium through the return conduit.