Brandenburger Patentverwertung Gbr

Brandenburger Liner Gmbh & Co. Kg

Brandenburger, Tim

Tim Brandenburger

Peter Duttenhoefer

Peter Duttenhöfer

Timo Singler

Philipp Bergmann

A method for producing a liner hose () for lining pipelines, comprising the method steps of moving a circumferentially closed inner film hose () over a winding mandrel () of a winding apparatus () and wrapping the inner film hose (), which is guided on the winding mandrel () by means of a guide mechanism (), with a fibrous strip () which has been impregnated with curable reaction resin, is characterized in that the inner film hose () is guided via endless pulling means () that circulate without a drive, and in that the inner film hose () that has been wrapped with the fibrous strip () is moved off of the winding mandrel () solely by a pull-off mechanism () which acts from the outside on the fibrous strip (). The invention further relates to a device for carrying out the method.

Method for producing a liner hose for lining pipes and apparatus for carrying out the method

A tubular liner for rehabilitating sewers has a reinforcing layer being expandable in the circumferential direction and formed of fiber rovings and impregnated with a curable reactive resin. The tubular liner has an outer tubular film which encloses the reinforcing layer and is formed of a material that can be expanded radially. A longitudinal pull strap is provided and absorbs the tensile forces acting on the tubular liner when the tubular liner is inserted into the sewer. The tubular film has a laminated nonwoven layer on the side facing the reinforcing layer. The longitudinal pull strap is located between the nonwoven layer and the reinforcing layer and is in immediate contact with the outer side of the reinforcing layer and the nonwoven layer. The longitudinal pull strap has a width of less than 50% of a length of the outer circumference of the reinforcing layer.

Tubular liner for the rehabilitation of defective sewers with an integral longitudinal pull strap and reinforcing layer

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Landau, Germany

Tim Brandenburger