Patents by Inventor Norvel Lemmons

Norvel Lemmons 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: 4826018
    Abstract: A mineral slurry processing machine for recovering gold from raw fines. An elongated, rigid skid supports a frame plate coupled thereto by vibration transmitting bearings. An inclined processing ramp is adjustably mounted to the plate. An endless belt entrained over the ramp for continual rotation is equipped with a specially grooved working surface which helps separate gold from the slurry. A plurality of similar, regularly spaced apart grooves are cut into the exposed working surface of the belt, and the angulated configuration of the grooves facilitates particle separation and recovery. The belt is divided into a fine receiving region and an adjacent gold conveying region. Each groove includes a first segment which is "angled" with respect to the direction of travel of the belt, and a second segment which is substantially perpendicular to the direction of travel of the belt. Separate fine receiving and gold conveying regions thus exist.
    Type: Grant
    Filed: May 2, 1988
    Date of Patent: May 2, 1989
    Inventor: Norvel Lemmons