Patents by Inventor Lothar Reichmann

Lothar Reichmann 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).

  • Quench hardening of gears
    Patent number: 4154628
    Abstract: A method of quench hardening a gear having a gear rim, a hub, and two rim carrying gear disk includes carburizing the gear and quenching it subsequently in a saline bath, and is improved by releasably covering the perforated disks with perforated supplemental disks, the perforations are closed during carburization but open during quenching. The gear is turned about its vertically positioned axis during quenching; the supplemental disks are removed subsequently so that the gear disks are not carburized.
    Type: Grant
    Filed: November 14, 1977
    Date of Patent: May 15, 1979
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Otto Dudek, Klaus Ortmann, Lothar Reichmann, Wilhelm Schafer