Patents by Inventor Herbert Schmedders

Herbert Schmedders 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 reducing the gaping values in the web saw cut test on steel railway tracks
    Patent number: 5916387
    Abstract: This invention concerns a method of reducing the gaping values of railway tracks made of steel to less than 3.6 mm. It is characteristic of this invention that the rolled and leveled rails are heated briefly, i.e., for approx. 10 to 25 sec, until reaching a maximum temperature of 100.degree. C. in the rail head and a maximum of 260.degree. C. in the web, and then they are allowed to cool again immediately.
    Type: Grant
    Filed: August 13, 1997
    Date of Patent: June 29, 1999
    Assignee: Thyssen Stahl AG
    Inventors: Robert Dannenberg, Herbert Schmedders, Jurgen Scharlack