Patents by Inventor Kaj Fabritius

Kaj Fabritius 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).

  • Method and calender for calendering a paper web above the glass transition range of the paper
    Patent number: 7037407
    Abstract: A paper web is calendered by passing the paper web through a nip formed by a heatable thermo roll and a backing roll. The surface temperature of the thermo roll is above the glass transition range of the paper.
    Type: Grant
    Filed: April 16, 2002
    Date of Patent: May 2, 2006
    Assignee: Metso Paper, Inc.
    Inventors: Pekka Koivukunnas, Kaj Fabritius
  • Method and calender for calendering a paper web above the glass transition range of the paper
    Publication number: 20040173331
    Abstract: The invention relates to a method for calendering of paper, comprising passing the paper web through a flip formed by a heatable thermo roll and a backing roll. The surface temperature of the thermo roll is above the glass transition range of the paper.
    Type: Application
    Filed: April 30, 2004
    Publication date: September 9, 2004
    Inventors: Pekka Koivukunnas, Kaj Fabritius
  • Method and device for transferring a web onto a reel spool in the reel-up of a paper web
    Patent number: 6581868
    Abstract: The present invention relates to a method and device for the transferring of a web onto a reel spool in the reel-up of a paper web having an empty reel spool (2) that is introduced into a contact with the web (W) running on the reeling cylinder (1) and being still unreeled, to make the transfer possible, and a turn-up blow is used to help the web (W) to break and to be guided on to the empty reel spool (2). The turn-up blow is brought from beneath a horizontal plane passing through the central axis of the reeling cylinder (1) into a location on the mantle of the reeling cylinder that is located after the reel spool (2) in the direction of rotation of the reeling cylinder.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: June 24, 2003
    Assignee: Metso Paper, Inc.
    Inventors: Petri Enwald, Seppo Luomi, Kaj Fabritius