Patents by Inventor Pertti Hongisto

Pertti Hongisto 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).

  • System and method for threading a moist web in a pulp dryer or the like from one section to the following section
    Patent number: 6358366
    Abstract: A system and method effectively threading the moist tail of a web through a pulp dryer. A tail threading belt in a closed loop passes the tail of the web through the dryer, and the most tail of the web is transferred from a support wire in the press section of a pulp machine to the tail threading belt. Transfer may be effected using a suction roll with a suction sector and a blower sector, or by using a suction chamber having a perforated escort belt which cooperates with it to engage the tail section on the wire and fully support it during transfer to the threading belt. The threading belt may be folded over to contain the tail web inside it while it passes through the dryer.
    Type: Grant
    Filed: August 25, 2000
    Date of Patent: March 19, 2002
    Assignee: Metso Paper, Inc.
    Inventors: Pertti Hongisto, Paavo Sairanen, Time Tammekas, Raimo Virta