Patents by Inventor David J. McDonald

David J. McDonald 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).

  • Rubber crumb inspection system
    Patent number: 10126247
    Abstract: An inspection system for inspecting rubber crumb includes a conveyor, lighting, a camera, and a controller. The conveyor is used to carry the rubber crumb. The lighting is positioned above the conveyor to illuminate the rubber crumb with at least 3,500 lumens. The camera is positioned adjacent to the lighting to take images of the illuminated rubber crumb in the lighted area. The controller receives the images from the camera and detects a contamination in the rubber crumb by determining whether there is a dark particle within the crumb. If a contamination is detected, it may be removed from the remaining rubber crumb.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: November 13, 2018
    Assignee: Zeon Chemicals L.P.
    Inventors: David J. McDonald, Mark Allen
  • RUBBER CRUMB INSPECTION SYSTEM
    Publication number: 20170030838
    Abstract: An inspection system for inspecting rubber crumb includes a conveyor, lighting, a camera, and a controller. The conveyor is used to carry the rubber crumb. The lighting is positioned above the conveyor to illuminate the rubber crumb with at least 3,500 lumens. The camera is positioned adjacent to the lighting to take images of the illuminated rubber crumb in the lighted area. The controller receives the images from the camera and detects a contamination in the rubber crumb by determining whether there is a dark particle within the crumb. If a contamination is detected, it may be removed from the remaining rubber crumb.
    Type: Application
    Filed: July 28, 2016
    Publication date: February 2, 2017
    Inventors: David J. McDonald, Mark Allen