BRANDENBURGER PATENTVERWERTUNG GDBR Patent applications |
Patent application number | Title | Published |
20140037877 | TUBULAR LINER HAVING AN INNER TUBULAR FILM FOR THE LINING OF PIPELINES AND METHOD FOR THE CONTINUOUS MANUFACTURE OF THE TUBULAR LINER - A tubular liner for pipelines includes an inner tubular film and a fiber material layer located on the film and impregnated with a reactive resin curable under UV light. The film contains a styrene-proof and thermally weldable carrier material having a laminated non-woven layer on its outer side facing the fiber material. The carrier material includes an overlapping region along the film. Edge sections of the carrier material are thermally welded together in the overlapping region. The non-woven layer on the outer side of the radially inner lower edge section in the overlapping region is thermally welded to the carrier material on the lower side of the radially outer upper edge section, and the radially outer upper edge section in the overlapping region has a structure on its outer side enabling a durable adhesion of reactive resin. A method for manufacturing the tubular liner is provided. | 02-06-2014 |
20130291987 | TUBULAR LINER FOR THE REHABILITATION OF DEFECTIVE SEWERS WITH AN INTEGRAL LONGITUDINAL PULL STRAP AND REINFORCING LAYER - 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. | 11-07-2013 |
20120043006 | METHOD OF PRODUCING A RESIN-IMPREGNATED FIBER TUBE AND METHOD OF INTERNALLY LINING CONDUITS AND PIPES - A method for remediating conduits and pipework includes the production of a resin-saturated fibrous tube for lining the conduits or pipework by impregnating a prefabricated fibrous tube or a tape with a liquid resin. The resin is a solution of an unsaturated polyester or of a vinyl ester in styrene and/or an acrylic ester, the viscosity of the resin being raised after the impregnating. Impregnating is performed by pulling the fibrous tube through a bath of the resin, or in that the resin is blade coated or sprayed onto the fibrous tube, and in that the liquid resin during the impregnating has a viscosity in the range from 200 to 20 000 mPa s and, after the impregnating, is thickened such that its viscosity is in the range from 50 000 to 2 000 000 mPa s. Alternatively, a fibrous tape is first impregnated and then wound into a tubular shape on a mandril. | 02-23-2012 |
20080203321 | Radiation Source for Irradiating the Interior Walls of Elongated Cavities - A radiation source apparatus for irradiating the inner walls of elongated cavities, especially for hardening of artificial resin laminates that can be radiation hardened by ultraviolet or infrared radiation, has a base body with at least one light source and multiple wheels by which the apparatus is guided inside the cavities. The multiple wheels are movably mounted on arms in a direction radial to the base body. At least one gas pressure spring is assigned to each arm, which pushes the arm from a radially proximal first position into a radially distal second position. | 08-28-2008 |