Patents by Inventor Herbert Feldewert

Herbert Feldewert 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).

  • Patent number: 4680846
    Abstract: Track wheels, especially railroad wheels, are trued in a material saving manner by first displacing material from zones of lesser wear to zones of higher wear on the wheel tread and/or on the wheel flange including the flank area of the flange, especially that part of the flank merging the flange into the tread zone. The location of the new or restored tread is then determined and a material removing operation such as milling or turning is performed. The material displacing may be performed by a rolling or forging operation prior to the milling or turning operation.
    Type: Grant
    Filed: May 2, 1986
    Date of Patent: July 21, 1987
    Assignee: Wilhelm Hegenscheidt GmbH
    Inventor: Herbert Feldewert