Patents by Inventor Randall K. Stoner

Randall K. Stoner 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).

  • Low clearance dual-screen particle sorter
    Patent number: 6837380
    Abstract: An apparatus for sorting particles of a material such as concrete. The apparatus includes a frame and a drive assembly attached to the frame to induce gyroscopic vibratory motion of the frame in a selected rotational direction. Adjacent first and second inclined screens are affixed to the frame. The screens slope downwardly away from an intermediate ridge at different, respective first and second angles. Material dropped onto the intermediate ridge separates into a first stream which passes along the first inclined screen and a second stream which passes along the second inclined screen. The first and second angles are selected in relation to the vibratory motion of the frame so that the first and second streams each move at substantially the same velocity. A diverter member at the intermediate ridge aids in the transition of material flow along the respective screens.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: January 4, 2005
    Inventor: Randall K. Stoner
  • Low clearance dual-screen particle sorter
    Publication number: 20030029699
    Abstract: An apparatus for sorting particles of a material such as concrete. The apparatus includes a frame and a drive assembly attached to the frame to induce gyroscopic vibratory motion of the frame in a selected rotational direction. Adjacent first and second inclined screens are affixed to the frame. The screens slope downwardly away from an intermediate ridge at different, respective first and second angles. Material dropped onto the intermediate ridge separates into a first stream which passes along the first inclined screen and a second stream which passes along the second inclined screen. The first and second angles are selected in relation to the vibratory motion of the frame so that the first and second streams each move at substantially the same velocity. A diverter member at the intermediate ridge aids in the transition of material flow along the respective screens.
    Type: Application
    Filed: June 28, 2002
    Publication date: February 13, 2003
    Applicant: Smico Manufacturing Company, L.L.C.
    Inventor: Randall K. Stoner