LINING TUBE FOR RESTORING DEFECTIVE SEWER SHAFTS INCLUDING A BERM AND A CHANNEL, AND METHOD FOR PRODUCING SAME, AND METHOD FOR LINING A DEFECTIVE SEWER SHAFT
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Jan 30, 2025
app pub date -
Nov 22, 2022
filing date -
Nov 22, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
A lining tube for restoring a defective sewer shaft has an inner film tube and a radially expandable tubular layer of fiber material impregnated with a curable reaction resin. The inner film tube has a connecting portion that connects two circumferential portions, to a circurmferentially closed inner film tube with a defined nominal diameter. The connecting portion has a predetermined breaking point that can be separated in the circumferential direction by introducing a pressure medium into the inner film tube in order to radially expand the inner film tube and the layer of fibrous material beyond the nominal diameter. The tubular layer of fiber material is closed by a seam at a first end that can be introduced into a channel of the sewer shaft. The seam extends orthogonally to the longitudinal axis of the tubular layer of fiber material of the lining tube.
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