Patents by Inventor Larry D. Watlington

Larry D. Watlington 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).

  • Lock coupling
    Patent number: 4991993
    Abstract: Gears with a soft metal hub and a hexagonal coaxial hole in the hub, often need repair. Accordingly the old hub is removed and a new solid plug is pressed in place and welded. A radial face on the plug and the gear are flush. A lock plate is placed on this radial face and wleded along an arc. Then the assembly has an axial circular hole bored therethrough and then a hexagonal hole is broached therein. The lock plate has two ears opposite the weld which receive a bolt.
    Type: Grant
    Filed: July 3, 1990
    Date of Patent: February 12, 1991
    Assignees: Larry D. Watlington, Nathan T. Haynes
    Inventors: Larry D. Watlington, Nathan T. Haynes