Patents by Inventor John N. Bohnker

John N. Bohnker 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).

  • Dual belt conveyor system
    Patent number: 6484870
    Abstract: A dual belt conveyor includes a pair of flexible endless loop conveyor belts arranged at an incline with a lower flight of the upper belt in face-to-face conveying relationship with an upper flight of the lower belt to retain and convey granular material between the belts. Drive pulleys are connected to both belts to move the belts at the same speed, and the conveying flights of the belts are journaled through a trough which forces the belts into a curved concave orientation between the side edges with the upper belt biased downwardly into engagement with product on the lower belt to retain product therebetween.
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: November 26, 2002
    Inventors: John N. Bohnker, David Hoffman
  • Dual belt conveyor system
    Publication number: 20010052450
    Abstract: A dual belt conveyor includes a pair of flexible endless loop conveyor belts arranged at an incline with a lower flight of the upper belt in face-to-face conveying relationship with an upper flight of the lower belt to retain and convey granular material between the belts. Drive pulleys are connected to both belts to move the belts at the same speed, and the conveying flights of the belts are journaled through a trough which forces the belts into a curved concave orientation between the side edges with the upper belt biased downwardly into engagement with product on the lower belt to retain product therebetween.
    Type: Application
    Filed: June 11, 2001
    Publication date: December 20, 2001
    Inventors: John N. Bohnker, David Hoffman