Patents by Inventor Herbert Dittmar

Herbert Dittmar 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).

  • Process for stripping off an adhered-on coating and device for carrying out the process
    Patent number: 4904329
    Abstract: Heavy wall, ceiling and floor coverings with closed surfaces can be pulled or pushed off relatively easily if the material connecting the coating with the substrate in an adhesive joint can at least be loosened with the aid of a stripping fluid. In accordance with the invention, a stripping fluid is pressed in an air-free, pulse-like way with the aid of a needle nozzle (1) through the coating with a high pressure into the adhesive joint (FIG. 1).
    Type: Grant
    Filed: August 19, 1988
    Date of Patent: February 27, 1990
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Josef T. Hein, Herbert Dittmar