Brandenburger Patentverwertung Gbr

Brandenburger Liner Gmbh & Co. Kg

Stefan Blenke

Peter Duttenhöfer

Peter Duttenhoefer

Milan Ebeling

A lining tube for restoring a defective sewer shaft which has a first shaft portion of a first diameter and an adjoining second shaft portion of an larger diameter. The lining tube has inner film tube and a radially expandable layer of fibrous material around the inner film tube and impregnated with a curable reactive resin. The inner film tube has a connecting portion which extends in the longitudinal direction and which connects two mutually parallel circumferential portions of the inner film tube to a circumferentially closed inner film tube. The connecting portion has a predetermined breaking point which extends along the inner film tube and 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 their nominal diameter.

Lining tube for restoring defective sewer shafts and method for producing and installing such a tube

Method and apparatus for producing a liner hose () for lining channels and pipes, comprising a circumferentially closed inner film hose () and at least on fibrous strip () wound onto the inner film hose () and impregnated with a curable reaction resin, wherein the inner film hose () is drawn in a winding apparatus () onto a support tube () which is mounted on one side and arranged substantially horizontally, at the free end () of which a winding mandrel () is arranged having a transport apparatus () which, during the circumferential winding of the fiber strips (), transports the inner film hose () in a feed direction () to a stationary supporting surface () which is arranged at the free end () of the winding mandrel () and over which the liner hose () is conveyed further, wherein the inner film hose () is drawn over the free end () of the winding mandrel () onto the support tube () against the feed direction ().

Method and apparatus for producing a liner hose for pipes

A tubular liner for the lining of pipelines has an inner tubular film, a layer of fibrous material arranged on the inner tubular film, and an outer tubular film which is arranged on the outer side of the fibrous material and is impermeable to UV light. The tubular liner is distinguished in that the outer tubular film has a radially inward peripheral portion and a second peripheral portion bearing on the outer side of the first peripheral portion in an overlapping region. The peripheral portions are connected to one another by an adhesive tape which extends across the longitudinal direction of the tubular liner. A method is also provided for manufacturing such a tubular liner.

Tubular liner having an outer tubular film connected in an overlapping manner by adhesive tape, for lining pipelines, and method for manufacturing same

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Landau, Germany

Stefan Blenke