Patents by Inventor Erwin Germann

Erwin Germann 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).

  • Slide ring seal assembly for the running gears of track-laying vehicles
    Patent number: 5851014
    Abstract: In a slide ring seal assembly having slide rings comprised of a casting material for running gears of track-laying vehicles and construction machinery, the improvement being slide rings composed of a gray cast iron alloy having a pearlitic matrix structure having lamellar separation of graphite therein, having a hardness value of at least 110 HRB, and being composed of:2.99 weight percent of carbon;4.61 weight percent of silicon;0.77 weight percent of manganese;0.53 weight percent of phosphorus;0.039 weight percent of sulfur;1.7 weight percent of chromium;0.81 weight percent of vanadium;1.86 weight percent of copper; andiron as remainder.
    Type: Grant
    Filed: July 15, 1996
    Date of Patent: December 22, 1998
    Assignee: A E Goetze GmbH
    Inventors: Erwin Germann, Lothar Neureuter, Hans-Henning Zutz, Hans-Jurgen Veutgen