Patents by Inventor Gerald J. Drew

Gerald J. Drew 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).

  • Plate scanning device having light funnels with an adjustable aperture
    Patent number: 5770852
    Abstract: A plate scanning device for measuring diffused or reflected light is provided. The plate scanning device includes a longitudinally extending silicon sensor strip and at least one light source extending substantially parallel to the sensor strip. Adjustably mounted light funnels form an aperture therebetween for receiving light reflected from a printing plate. The aperture has a width and length which is slightly smaller than a width and length of the sensor strip.
    Type: Grant
    Filed: August 29, 1996
    Date of Patent: June 23, 1998
    Assignees: Heidelberger Druckmaschinen AG, Heidelberger Harris, Inc.
    Inventors: Michael R. Rancourt, Gerald J. Drew