Patent ID: 6167913
Filing Date: 2001-01-02
Classification: B29C,F16L

Abstract:
A method of lining a host pipeline or passageway or the like, comprising the steps of drawing into a portion of said pipeline a tubular liner of sufficient length to line said portion; depositing a slug of a fluent hardenable compound in the host pipeline externally of the liner, expanding the liner within the pipeline against the inner surface of said pipeline progressively along the length of said lines thus causing the slug of fluent hardenable compound to flow between the outer surface of the liner and the inner surface of the pipeline and progressively along the pipe wherein the outer surface of the liner is provided with a plurality of protrusions spaced axially and radially on at least one surface of the liner which allows for flow of the hardenable compound around said liner which forms a mechanical bond with said liner when the compound cures.