Liner for reinforcing a pipe and method of making the same
AssigneeOwens Corning Composites SPRL
InventorsGeorg Adolphs, Claude M. J. G. L. Renaud
Life of this patent
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Abstract
A reinforcement liner and methods of manufacturing the liner are disclosed. The liner includes a fabric (100) material having first and second fibers (112, 122). The second fibers comprise chopped fibers in substantially parallel alignment for being positioned substantially about the circumference of a pipe, so the fabric can be elongated in a direction parallel to the second fibers. The liner may includes a stitching material (130) that is used to couple the first and second fibers together. The stitching material is preferably an elastic yarn.
Claims41
A continuous fabric having a length for forming a support for reinforcing a pipe having a circumference comprising:
- a first layer, said first layer including first fibers;
- a plurality of second fibers coupled to said first layer, said second fibers including chopped fibers in substantially parallel alignment for use in said pipe, said fibers aligned for being positioned substantially about the circumference of said pipe, whereby said fabric can be elongated in a direction parallel to said second fibers.
A support for reinforcing a pipe comprising:
- a reinforcement liner substantially configured in the form of a tube, said tube having a length disposed along a longitudinal axis and a peripheral direction in a plane perpendicular to said longitudinal-axis, said liner including a fabric with a first layer having randomly oriented fibers and a plurality of second fibers comprising chopped fibers aligned in substantially the same direction, said first and second fibers being coupled together, wherein said fabric is disposed as layered, overlapping strips to produce the tube, and said fabric can be elongated in a direction parallel to said second fibers.
A method of manufacturing a support for reinforcing a pipe comprising the steps of:
- disposing a fabric in a first layer made from randomly-oriented fibers;
- and
- disposing the fabric in a second layer overlapping a portion of the first layer, wherein the first layer and the second layer form a reinforcement liner substantially configured in the form of a tube, the tube has a longitudinal axis and a peripheral direction in a plane perpendicular to the longitudinal axis, the fabric comprising a first layer and a second layer, the first and second layers coupled together by a stitching element, the second support layer includes chopped fibers aligned in substantially the same direction, and said fabric can be elongated in a direction parallel to said chopped fibers.
A support for reinforcing a pipe comprising:
- a reinforcement liner substantially configured in the form of a tube, said tube having a longitudinal axis and a radial direction in a plane perpendicular to said longitudinal axis, said liner including a fabric with a first layer and a second layer, said first and second layers coupled together by a stitching element, said second layer including chopped fibers aligned substantially circumferentially about the tube, wherein said fabric is disposed as layered, overlapping strips to produce the tube, and said fabric can be elongated in the radial direction.
Dependencies are inferred from the claim text.