Patents by Inventor Mark R. Donovan

Mark R. Donovan 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).

  • Printing machine with improved vacuum transfer
    Patent number: 6591749
    Abstract: A multistage printing machine is disclosed with a vacuum conveyor between stages, and in which supplemental air is provided adjacent at least one printing cylinder.
    Type: Grant
    Filed: August 24, 2001
    Date of Patent: July 15, 2003
    Assignee: Ward, Inc.
    Inventors: Michael Elkis, Mark R. Donovan
  • QUICK CHANGE INK ROLL
    Publication number: 20030047098
    Abstract: A mounting system is disclosed for removably mounting rollers and cylinders in a machine for quick and easy removal and replacement by other rollers and cylinders. The mounting system provides for rapid separation of the journal from the roller or cylinder so that only the roller or cylinder is removed, and the mounting system has particular applicability with respect to ink rolls in printing machines.
    Type: Application
    Filed: September 10, 2001
    Publication date: March 13, 2003
    Inventors: Michael Elkis, Mark R. Donovan, William F. Ward
  • Quick change ink roll
    Patent number: 6530319
    Abstract: A mounting system is disclosed for removably mounting rollers and cylinders in a machine for quick and easy removal and replacement by other rollers and cylinders. The mounting system provides for rapid separation of the journal from the roller or cylinder so that only the roller or cylinder is removed, and the mounting system has particular applicability with respect to ink rolls in printing machines.
    Type: Grant
    Filed: September 10, 2001
    Date of Patent: March 11, 2003
    Assignee: Ward Holding Company, Inc.
    Inventors: Michael Elkis, Mark R. Donovan, William F. Ward, Jr.
  • Printing machine with improved vacuum transfer
    Publication number: 20020053293
    Abstract: A multistage printing machine is disclosed with a vacuum conveyor between stages, and in which supplemental air is provided adjacent at least one printing cylinder.
    Type: Application
    Filed: August 24, 2001
    Publication date: May 9, 2002
    Inventors: Michael Elkis, Mark R. Donovan
  • Paperboard processing machine with vacuum transfer system
    Patent number: 5564693
    Abstract: A paperboard processing machine is disclosed for printing and otherwise processing sheets of paperboard, such as corrugated container blanks, and in which the sheets are conveyed from one section of the machine to another section by one or more vacuum transfer systems. Each vacuum transfer system comprises an enclosure which is closed by a closure plate for creating a subatmospheric pressure, which pressure forces the sheets into frictional engagement with the reaches of a plurality of conveyor belts whereby the sheets are transported without contact of the opposite side of the sheet not contacted by the conveyor reach. In one embodiment the closure plate is imperforate, while in the second embodiment the closure plate is provided with a limited number of apertures for providing a secondary flow of air upwardly against the bottom surfaces of the paperboard sheets.
    Type: Grant
    Filed: February 1, 1995
    Date of Patent: October 15, 1996
    Assignee: Ward Holding Company, Inc.
    Inventors: Mikhail Elkis, James M. Kowalewski, Mark R. Donovan, John H. P. Andrews