Patents by Inventor Werner Psiuk

Werner Psiuk 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).

  • Method of generating a wear-reducing layer on a plastifying worm or screw
    Patent number: 5405660
    Abstract: A coating of at least 71% by weight molybdenum as applied to the steel base body of a worm or screw for a plastifier or extruder for plastic materials and synthetic resin by introducing the coating material into a laser beam and directing the thus melted coating material and the laser beam onto the surface of the worm or screw to be coated. The melt-metallurgical bond is formed between the coating without distortion or crack formation of the base body.
    Type: Grant
    Filed: October 18, 1993
    Date of Patent: April 11, 1995
    Assignee: Friedrich Theysohn GmbH
    Inventors: Werner Psiuk, Michael Reuter