The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 02, 2020
Filed:
Jul. 22, 2016
Brandenburger Patentverwertung Gbr, Landau, DE;
Peter Duttenhöfer, Ilbesheim, DE;
Brandenburger Patentverwertung GbR, Landau, DE;
Abstract
A liner tube () for rehabilitating sewers and water drainage ducts, with an inner film tube (), a first layer () arranged thereon made of nonwoven material, and a second layer () made of glass fiber material and arranged on the layer () made of nonwoven material, is characterized in that the first layer () contains at least one overlapping wound strip made of nonwoven material, which is impregnated with a fluid reaction resin which can be cured by light or heat, and in that the second layer () contains at least one first strip () which is impregnated with a fluid reaction resin and made of glass fiber material, which has glass fibers () extending in the longitudinal direction of the liner tube. The invention furthermore relates to a method for producing a liner tube of this kind.