Patents by Inventor Mikhail Elkis

Mikhail Elkis 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).

  • Paperboard processing machine with vacuum transfer system
    Patent number: 5651313
    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.
    Type: Grant
    Filed: November 29, 1995
    Date of Patent: July 29, 1997
    Assignee: Ward Holding Company, Inc.
    Inventors: James M. Kowalewski, Mikhail Elkis, Leonard T. Katilas
  • 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
  • Paperboard processing machine with vacuum transfer system
    Patent number: 5509352
    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.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: April 23, 1996
    Assignee: Ward Holding Company
    Inventors: James M. Kowalewski, Mikhail Elkis, Leonard T. Katilas