Patents by Inventor Carl Emil Oppenheim

Carl Emil Oppenheim 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).

  • Railway bolster integral wear liner
    Patent number: 4040362
    Abstract: A railway bolster is provided wherein the bolster bowl and king bolt openings have liners of low alloy or carbon steel backed by a weld metal deposit with a hardness of from about 25 to 40 Rockwell C the weld metal forming the wear element.
    Type: Grant
    Filed: September 29, 1976
    Date of Patent: August 9, 1977
    Assignee: Chemetron Corporation
    Inventors: Carl Emil Oppenheim, James McKenna