Patents by Inventor Alfred G. Lopez

Alfred G. Lopez 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).

  • Trailer hitch
    Patent number: 4836570
    Abstract: An apparatus for preventing unauthorized intentional or accidental uncoupling of a trailer from a towed vehicle. A tow ball characterized by a flared shoulder is mounted on a tow bar. A bushing spaces the shoulder away from the tow bar and provides a cylindrical support for a bracket. The bracket is free to rotate about the bushing. A cap attached to the bracket prevents disengagement of the trailer from the towing vehicle.
    Type: Grant
    Filed: April 7, 1988
    Date of Patent: June 6, 1989
    Inventors: Alfred G. Lopez, Arthur F. Lopez