Patents by Inventor Ulrich Feyerabend

Ulrich Feyerabend has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4731139
    Abstract: A method for the production of an embossed laminate containing at least two layers, in which a thin top layer of stretchable material is backed with an unvulcanized bottom layer of rubber and pressed with a platen which has recesses which are arranged in a pattern and have a depth exceeding the thickness of the top layer, in which the two layers are bonded and solidified together by vulcanization, and in which at least the top layer is removed in the area of the projections by a cutting, milling or grinding process performed on a straight line, the laminate being exposed to a pressure and deformation acting perpendicular to its surface during the removal of the top layer in the area of the projections.
    Type: Grant
    Filed: November 21, 1986
    Date of Patent: March 15, 1988
    Assignee: Firma Carl Freudenberg
    Inventors: Ulrich Feyerabend, Gerhard Graab