A method for renovating the interior of a hollow structure such as a sewerage pit (1) is described. The method provides an access opening (16) to the hollow structure (1); provides a plurality of material sheets (3) comprising reinforcing fibers and a curable resin composition through the access opening (16) and against a wall (11a, 11b) of the hollow structure (1); and provides an inflatable pressure means (4a, 4b) within the hollow structure (1). The pressure means (4a, 4b) are inflated against the wall (11a, 11b). A curing means (6) is then provided within the hollow structure (1) for curing the resin composition; and the resin composition is cured to harden the material sheets and provide a renovated interior of the hollow structure (1).

A fibrous material or composite including a plurality of layers joined to one another, for example, by needlepunching, is disclosed. The fibrous composite generally has an asymmetrical stretch profile, such that the fibrous composite is more extensible in the cross-machine direction than in the machine direction. The fibrous composite may find particular use in forming a cure-in-place pipe liner.

The invention relates to: a device for curing resin-soaked lining sleeves with energy-rich radiation, comprising at least one radiation source for generating energy-rich radiation for curing a lining sleeve, at least one camera for capturing an image sequence of an environment of the device, and at least one input device, in particular provided separately from the device, wherein a capturing region and/or a display region of the camera is/can be adjusted by a user by means of the input device, and wherein an adjustment of the capturing region of the camera occurs via a movement of at least one part of the camera and/or occurs by means of an electronic image-processing device, which is designed and configured to adjust at least one camera parameter in accordance with an adjusted display region; and a use for a device of this type.

Disclosed herein are exemplary embodiments of linings or liners (e.g., liners with corner reinforcement, etc.), methods of providing a liner or lining for a tank, and methods and apparatus for providing additional protection and/or reinforcement at the corners of a liner or lining. In an exemplary embodiment, a method generally includes positioning and attaching one or more corner attachments at one or more corners of a liner that are formed between the bottom and the one or more sides of the liner. The one or more corner attachments may be configured to provide additional protection and/or reinforcement at the one or more corners of the liner.

The invention refers to a method for laminating a tubular film (1) preferably manufactured by means of blown film (co-) extrusion with a material capable of absorbing resin or liquids, wherein the tubular film (1) is laminated over its entire perimeter with several layers (10, 11, 12, 13; 20, 21, 22; 30, 31) overlapping or positioned directly opposite one another on their front sides containing material capable of absorbing resin or liquids, so that essentially there are no areas left along the perimeter of the tubular film (1) not covered by the laminated layers (10, 11, 12, 13; 20, 21, 22; 30, 31). The invention also refers to a tubular film laminated in such a way and to various applications.

The subject matter of the invention is a lining hose as a composite hose for lining a pressure pipe to be renovated, comprising at least one first layer and a second layer which adjoins the first layer, the first layer forming a substantially fluid-tight and/or gas-tight diffusion barrier and the second layer being a textile fabric soaked in a resin and being provided for an all-over adhesive connection to an inner wall of the pressure pipe to be renovated, the lining hose being flexible in a state in which the resin has not cured. The second layer is at least 3 mm thick, the textile fabric and the resin being selected such that the lining hose forms a self-supporting pipe in a state in which the resin has cured. The invention also relates to a method for renovating a pressure pipe using such a lining hose and a corresponding renovated pressure pipe.

lining hose for the renovation of fluid carrying (fluid bearing) systems comprising

a) at least one inner tubular foil based on thermoplastic polymers mindestens einem inneren Folienschlauch auf der Basis eines thermoplastischen Kunststoffs,

b) at least one outer tubular foil based on thermoplastic polymers and

c) at least one fiber hose impregnated with a photochemically curing resin between one inner and one outer tubular foil wherein the outer tubular foil which is in contact with a resin impregnated fiber hose comprises functional groups on a surface which surface, in the installed state, is oriented towards the fiber hose and which functional groups undergo a reaction with the fiber hose.

A multilayer flexible tube includes an inner layer including a melt processable fluoropolymer, wherein the fluoropolymer includes a copolymer of a poly vinylidene fluoride (PVDF) and a hexafluoropropylene (HFP); and an outer layer including a melt processable polymer having a shore hardness less than a shore hardness of the inner layer, wherein the multilayer flexible tube has a maximum storage modulus of at least 300 MegaPascal (MPa) at a temperature of about −10° C.

A method of manufacturing a liner for reinforcing a pipe includes providing a continuous first reinforcing fibers extending in a first direction, moving the first reinforcing fibers in a machine direction such that the first direction is parallel to the machine direction, providing sheets of a material having second reinforcing fibers extending in a second direction, placing the sheets onto the moving first reinforcing fibers such that the second direction is substantially perpendicular to the first direction, and folding the sheets into a closed shape.

In order to further improve a method and a device for rehabilitating a pipe section, wherein the rehabilitation device has at least one tube-shaped inliner for sealing damage to the pipe section and a heating element, in such a way that the rehabilitation may be carried out more easily, safer, and more economically, it is proposed to design the heating element as a tube-shaped and electric heating element and to arrange it essentially across an entire length of the inliner arranged within the pipe section, and to cure the inliner essentially along the entire length in one step by means of the tube-shaped electric heating element.