Patents by Inventor John P. Markey

John P. Markey 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).

  • Apparatus and method for processing photosensitive sheets
    Patent number: 4937607
    Abstract: A processor for photosensitive sheet material which allows uniform initial exposure of the sheet material to developer solution. The processor includes a channel defined by an initial roller pair submerged in developer tank, third and fourth rollers above the rollers of the pair. The channel runs horizontally in the processor and has a stream of developer. The sheet to be developed travels downward through the stream and through the nip of the initial roller pair.
    Type: Grant
    Filed: September 20, 1988
    Date of Patent: June 26, 1990
    Assignee: Pako Corporation
    Inventors: Richard W. Kulus, David M. Webb, John P. Markey