Patents by Inventor Ernst Altfeld

Ernst Altfeld 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).

  • Bracing tube for pusher type or rocker bar furnaces
    Patent number: 4080152
    Abstract: A bracing tube construction for pusher type or rocker bar furnaces comprising a bracing tube having a carrier bracket secured thereto. A rider is secured to the carrier bracket and thereby to the tube. The rider has a recess in which the carrier bracket is received and a bore in the rider extends perpendicularly to the tube for receiving a bolt which extends transversely to the tube and is engaged in a groove in the carrier bracket. The carrier bracket has ends engaging corresponding surfaces in the recess in the rider to prevent relative axial movement between the rider and the tube. The bolt and the bore in the carrier bracket are trapezoidal in shape.
    Type: Grant
    Filed: December 23, 1975
    Date of Patent: March 21, 1978
    Assignee: Fried Krupp Huttenwerke AG
    Inventors: Ernst Altfeld, Manfred Heerdt, Heinz Lehmkuhl