Patents by Inventor Jari Vainio

Jari Vainio 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).

  • Dryer section in a paper or board machine including an arrangement for cutting at least one of a leader of a web
    Patent number: 5852963
    Abstract: A method for cutting the leader of the web in a paper or board machine in the dryer section of the machine by a jet of pressurized water. The web is placed against the drying wire when it is being cut, and the jet is directed at the web from the free side of the web. The water jet pressure used is from about 40 bar to about 400 bar, preferably from about 100 bar to about 350 bar, which is produced by an ordinary pressure washer.
    Type: Grant
    Filed: January 14, 1997
    Date of Patent: December 29, 1998
    Assignee: Valmet Corporation
    Inventors: Ismo Koponen, Iimari Rintasalo, Jari Vainio, Juha Kaihovirta
  • Method and arrangement for cutting a leader of the web in a paper or board machine in the drying section of the machine
    Patent number: 5758556
    Abstract: A method for cutting the leader of the web in a paper or board machine in the dryer section of the machine by a jet of pressurized water. The web is placed against the drying wire when it is being cut, and the jet is directed at the web from the free side of the web. The water jet pressure used is from about 40 bar to about 400 bar, preferably from about 100 bar to about 350 bar, which is produced by an ordinary pressure washer.
    Type: Grant
    Filed: January 14, 1997
    Date of Patent: June 2, 1998
    Assignee: Valmet Corporation
    Inventors: Ismo Koponen, Iimari Rintasalo, Jari Vainio, Juha Kaihovirta
  • Dryer section of a paper or board machine including an arrangement for cutting a leader of the web
    Patent number: 5644962
    Abstract: An arrangement for cutting the leader of the web in a paper or board machine in the dryer section of the machine by a jet of pressurized water. The web is placed against the drying wire when it is being cut, and the jet is directed at the web from the free side of the web. The water jet pressure used is from about 40 bar to about 400 bar, preferably from about 100 bar to about 350 bar, which is produced by an ordinary pressure washer.
    Type: Grant
    Filed: March 4, 1994
    Date of Patent: July 8, 1997
    Assignee: Valmet Corporation
    Inventors: Ismo Koponen, Iimari Rintasalo, Jari Vainio, Juha Kaihovirta
  • Method for cutting of the leader of the web in a paper or board machine in the drying section of the machine
    Patent number: 5445055
    Abstract: A method for cutting of the leader of the web in a paper or board machine in the drying section of the machine by a jet of pressurized water. According to the method, the web is placed against the drying wire when it is being cut, and the jet is directed at the web from the free side of the web. The water-jet pressure used is about 40 bar to about 400 bar bar, preferably about 100 bar, which is produced by an ordinary pressure washer.
    Type: Grant
    Filed: June 22, 1993
    Date of Patent: August 29, 1995
    Assignee: Valmet Paper Machinery, Inc.
    Inventors: Ismo Koponen, Jari Vainio, Umari Rintasalo