Patents by Inventor Richard C. Stoyell, Jr.

Richard C. Stoyell, Jr. 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 for treating fountain solution
    Patent number: 5622620
    Abstract: The disclosure describes an apparatus for treating fountain solution which comprises a recirculation assembly and a microporous filter assembly. The recirculation assembly is connected between the outlet and inlet of a fountain solution tray of a printing system. The recirculation assembly includes a fountain solution sump and a return line which extends from the outlet of the fountain solution tray to the sump. The microporous filter assembly is positioned in the sump or in the return line and includes a filter position across a fountain solution flow path. A pressure sensitive device is cooperatively arranged with the filter to bypass the filter in response to a predetermined pressure differential.
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: April 22, 1997
    Assignee: PALL Corporation
    Inventors: Sean G. Meenan, Richard C. Stoyell, Jr., Lawrence A. Smith, Jr.
  • Apparatus for filtering solution
    Patent number: 5489379
    Abstract: The disclosure describes an apparatus for treating fountain solution which comprises a recirculation assembly and a microporous filter assembly. The recirculation assembly disconnected between the outlet and inlet of a fountain solution tray of a printing system. The recirculation assembly includes a fountain solution sump and a return line which extends from the outlet of the fountain solution tray to the sump. The microporous filter assembly is positioned in the sump or in the return line and includes a filter position across a fountain solution flow path and having a removal rating of at least about 99.98% at about 20 microns or finer.
    Type: Grant
    Filed: July 8, 1994
    Date of Patent: February 6, 1996
    Assignee: Pall Corporation
    Inventors: Sean G. Meenan, Richard C. Stoyell, Jr.