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. 05, 2024
Filed:
Feb. 18, 2020
Andrew J. Mayer, Jacksonville, FL (US);
Harvey E. Svetlik, Pipe Creek, TX (US);
Andrew J. Mayer, Jacksonville, FL (US);
Harvey E. Svetlik, Pipe Creek, TX (US);
Abstract
A method and apparatus for lining a host pipe with a shape memory polymer liner in which the liner is fed through a manufacturing assembly including a pipe tensioner, followed by a deformation tool, prior to entering the host pipe, the liner being pulled through the host pipe from a leading end, the component parts of the manufacturing assembly acting to temporarily reduce the liner outside diameter during the pulling operation, while allowing the liner to revert to at least the internal diameter of the host pipe upon removal of the pulling load. The liner being used is a shape memory polymer which exhibits the ability to return from a deformed shape to an original shape induced by an external stimulus.