Patents by Inventor Buford Lewis

Buford Lewis 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).

  • Locking device for air hose coupling devices of tractor trailers
    Patent number: 4787770
    Abstract: A tractor-trailer coupling safety device includes a housing mountable about the curved medial area of a pair of joined coupling elements and presenting opposed inwardly directed projections serving to contain and prevent the members from separating from the housing while allowing normal angular relative displacement between the joined coupling elements.
    Type: Grant
    Filed: July 7, 1987
    Date of Patent: November 29, 1988
    Inventor: Buford Lewis