Patents by Inventor Harald Risius

Harald Risius 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: 5008057
    Abstract: The disclosure herein describes a method for producing a structure, more particularly a wooden structure, in the surface of a hardened fibreboard, especially a medium-density fibreboard; it comprises the steps of: applying a resin-water mix to the surface of the fibreboard on one or both sides to soften and penetrate into the surface of the fibreboard; and pressing the fibreboard with a short-cycle press, under the action of pressure and heat, and using a structured pressure-plate. The water-part of the resin-water mix is caused to evaporate and the resin-part to cure, whereas the structure of the pressure-plate is moulded into the surface of the fibreboard.
    Type: Grant
    Filed: November 29, 1989
    Date of Patent: April 16, 1991
    Assignee: Glunz Aktiengesellschaft
    Inventors: Harald Risius, Wilhelm Oldemeyer