Patents by Inventor Emanuel J. Seldin

Emanuel J. Seldin 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).

  • High taper angle connecting pin for graphite electrode joints
    Patent number: 4290709
    Abstract: In graphite electrode joints comprising two graphite electrode ends having axial tapered end sockets and a double ended tapered thread connecting pin screwed into both of said sockets, the strength of the joint is improved by increasing the angle of the taper from the conventional 9.46 degrees to from 15 to 35 degrees.
    Type: Grant
    Filed: September 28, 1979
    Date of Patent: September 22, 1981
    Assignee: Union Carbide Corporation
    Inventors: Emanuel J. Seldin, Tu-Lung Weng