Patents by Inventor Donald E. Rexrode

Donald E. Rexrode 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).

  • Electrical flash butt welding apparatus
    Patent number: 4988843
    Abstract: Apparatus for electrical flash butt welding the ends of metal sheet or strip including a pair of flat faced parallel welding electrodes extending across the full width of the metal sheet or strip, one on each side thereof, and an electrode cleaning device comprising a support assembly having mounted thereon an extendable electrode cleaning means including a cleaning head having a plurality of upward extending cleaning members and a plurality of downwardly extending cleaning members the cleaning head adapted to simultaneously remove dirt and contaminants from the contact surfaces of opposed welding electrodes.
    Type: Grant
    Filed: January 4, 1990
    Date of Patent: January 29, 1991
    Assignee: Bethleham Steel Corporation
    Inventors: William D. Cornell, Donald E. Rexrode, Delmer B. Wolfe, Nicholas D. Remy