Patents by Inventor Paul Rouhiainen

Paul Rouhiainen 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).

  • Web support and transferring a paper web between papermachine components
    Patent number: 6558514
    Abstract: An apparatus (62) and method for supporting a web (22) of paper being transferred through a region (40) from the surface (26) of one moving component (24) of a papermachine (20) to the surface (30) of a subsequent moving component (28) of the papermachine utilizes an air-permeable sheet (70) and a blowbox (86) or Coanda air knives (38) supported adjacent the air-permeable sheet. The sheet is supportable in a stationary condition across so as to span at least a portion of the papermachine region through which the moving web of paper is transferred and adjacent one side (72) of the web, and the blowbox or Coanda air knives are used to move air away from the side (72) of the air-permeable sheet opposite the web so that as the web is moved through the papermachine region, the web is biased by atmospheric air pressure into contact with the air-permeable sheet and moves in sliding engagement therealong.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: May 6, 2003
    Assignee: Valmet, Inc.
    Inventors: Paul Rouhiainen, Michael John Vander Wielen, Robert J. Marinack, James R. Benson
  • Web support system and method for use when transferring a paper web between components of a papermachine
    Publication number: 20020092637
    Abstract: An apparatus (62) and method for supporting a web (22) of paper being transferred through a region (40) from the surface (26) of one moving component (24) of a papermachine (20) to the surface (30) of a subsequent moving component (28) of the papermachine utilizes an air-permeable sheet (70) and a blowbox (86) or Coanda air knives (38) supported adjacent the air-permeable sheet. The sheet is supportable in a stationary condition across so as to span at least a portion of the papermachine region through which the moving web of paper is transferred and adjacent one side (72) of the web, and the blowbox or Coanda air knives are used to move air away from the side (72) of the air-permeable sheet opposite the web so that as the web is moved through the papermachine region, the web is biased by atmospheric air pressure into contact with the air-permeable sheet and moves in sliding engagement therealong.
    Type: Application
    Filed: January 12, 2001
    Publication date: July 18, 2002
    Inventors: Paul Rouhiainen, Michael John Vaner Wielen, Robert J. Marinack, James R. Benson