Abstract: A liner for pipe, methods to make liners, and methods for using them, the liner in one aspect including as a first layer a hollow cylinder of polymeric material, a second layer of wrap material around the first layer, a third layer of wrap material wrapped around the second layer, at least one strengthener member on the liner and extending from a first end thereof to a second thereof, and an exterior cover, the liner being a stand-alone structure.

Abstract: An apparatus for wrapping material onto and around a pipe, the apparatus including a shaft, the shaft rotatable by a driving apparatus, a payout core containing material to be wrapped onto a pipe, the payout core releasably mounted on the shaft, a deflection arm assembly secured to the shaft for rotation by the shaft, rotation of the shaft rotating the deflection arm assembly with respect to the payout core so that the deflection arm assembly takes material from the payout core and wraps the material onto a pipe adjacent the deflection arm assembly, each of the shaft and deflection arm assembly having a central opening through which is movable the pipe as the pipe is being wrapped.

Abstract: A thermoplastic pipe liner assembly and method for installation in a pipeline by pulling the pipe liner assembly through the pipeline in a temporarily folded condition wherein the thermoplastic pipe liner assembly has a core inner liner, an outer liner with optional grooving for annular communication, orbitally wound strength and intermediate layers, two or more tension deformation members to sustain the tension needed to pull the pipe liner assembly through the pipeline for several miles and to assist in maintaining the temporarily folded condition. Also included are optional instrumentation circuits. Also disclosed is a method for the manufacture of the pipe liner assembly and concurrent installation in a pipeline.