Patents by Inventor John W. Hutson

John W. Hutson 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).

  • Patent number: 4190346
    Abstract: Disclosed herein is an automated system adapted to be connected to commercial film processors, the system including a common automated sequencer for advancing the wash, rinsing and fill cycles in both the developer and fixer containers. To accommodate the level requirements in the various containers and the variations in pumping rate there are periodic wait logic sections which bring the developer and fixer cycle into synchronism. The foregoing system includes an interface panel provided with level detectors and the necessary interconnections with the commercial units.
    Type: Grant
    Filed: December 4, 1978
    Date of Patent: February 26, 1980
    Inventors: John W. Hutson, Robert L. Neal