Patents by Inventor Colin D. Saunders

Colin D. Saunders 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).

  • Method of classifying objects according to shape
    Patent number: 5010247
    Abstract: Objects are dropped in succession through a viewing zone, where they are viewed in bright field illumination by three viewers along mutually orthogonal axes, using radiation of different wave-lengths (or viewing in rapid succession). The viewers sense the presented area. The presented areas are compared in a microprocessor in order to obtain a rough determination of the shape of the object. The presented areas can, for example, be summated to obtain a rough determination of the size of the object.
    Type: Grant
    Filed: October 6, 1989
    Date of Patent: April 23, 1991
    Assignee: Spandrel Establishment
    Inventors: Martin P. Smith, Colin D. Saunders