Patents by Inventor Kenneth B. Shelton

Kenneth B. Shelton 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).

  • Patent number: 4483045
    Abstract: A door track adapted for carrying a trolley supporting a door for rolling movement. The door track includes one or more single-piece track members having a first substantially planar surface and a pair of substantially identical spaced apart portions extending from the first substantially planar surface and forming a channel with the first planar surface. The spaced apart portions each have a substantially planar portion adjacent the first substantially planar surface to provide a plurality of flat mounting surfaces. The spaced apart portions further include inwardly curved portions extending from the substantially planar portions which are adapted to support a trolley for rolling movement therealong. The inwardly curved portions are spaced apart to freely receive a door supporting member which is secured to the trolley.
    Type: Grant
    Filed: June 20, 1984
    Date of Patent: November 20, 1984
    Assignee: Erect-A-Tube, Inc.
    Inventors: Kenneth B. Shelton, Klaus H. Herkert, Lynn O. Twedt