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. 25, 2014
Filed:
May. 13, 2011
Peter H. Emmons, Finksburg, MD (US);
John R. Crigler, Woodbine, MD (US);
Michael R. Moussa, Euless, TX (US);
Dan A. Dock, Irving, TX (US);
Scott V. Bauer, Sachse, TX (US);
Nathan D. Sauer, Baltimore, MD (US);
Peter H. Emmons, Finksburg, MD (US);
John R. Crigler, Woodbine, MD (US);
Michael R. Moussa, Euless, TX (US);
Dan A. Dock, Irving, TX (US);
Scott V. Bauer, Sachse, TX (US);
Nathan D. Sauer, Baltimore, MD (US);
Structural Group, Inc., Hanover, MD (US);
Abstract
A method for repairing and strengthening pipes by creating a structural reinforced composite liner within the existing pipe. The liner is created by helically winding a tensile reinforcement material on the inside wall of a pipe and encapsulating it in a hardening matrix material. The reinforcement material is helically wound around the inside wall of the pipe by an installation device. The installation device is configured to relieve and/or prevent the development of torsional stress in the reinforcement material that is created by the act of helically winding it onto the inside wall of a pipe, allowing the reinforcement material to lay flat against the pipe wall without twisting or buckling. The structural reinforced composite can be configured to supplement the strength of the existing pipe or to function as a stand-alone pipe within the existing pipe.