Patents by Inventor Lawrence E. Lobaugh

Lawrence E. Lobaugh 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).

  • Cold forged steel grating
    Patent number: 3948013
    Abstract: A cold forged steel grating is formed of a plurality of spaced parallel bearing bars secured to one another by a plurality of spaced parallel cross rods engaged in openings in the bearing bars adjacent their uppermost surfaces with the metal of the bearing bars adjacent the cross rods cold forged into engagement therewith and the metal of the cross rods adjacent the bearing bars flatened by cold forging to forcefully engage the opposite sides of said bearing bars and forming a sturdy rigid grating structure.
    Type: Grant
    Filed: May 7, 1975
    Date of Patent: April 6, 1976
    Inventors: Lawrence E. Lobaugh, Thomas S. Gallo