Patents by Inventor Seppo Palonen

Seppo Palonen 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).

  • Publication number: 20060169433
    Abstract: A calender is disclosed comprising at least two calender nips formed by at least two stacked rolls (8, 9; 14, 15) so disposed mutually in regard to each other that in the successive pairs of rolls the distance between the center axes of the lower rolls (8, 14) of the roll pairs is smaller than the distance between the center axes of the respective upper rolls (9, 15), whereby the rolls (8, 9; 14, 15) as seen from their ends are staggered in a Vangled configuration so as to leave space therebetween for changing the rolls. The invention provides a very compact calender construction by way of having the pairs of rolls (8, 9; 14, 15) staggered in regard to the vertical plane so as to locate the rolls at different height levels.
    Type: Application
    Filed: August 1, 2003
    Publication date: August 3, 2006
    Inventors: Heikki Kaarakka, Seppo Palonen, Ville Tiistola
  • Patent number: 7024990
    Abstract: A calender and an arrangement for mounting calender rolls, the calender comprising at least two calender nips (1, 2) formed by at least two stacked rolls (11–14). The rolls are have bearing housings (3–6) by means of which the rolls (11–14) are stacked into roll pairs forming the calender nips (1, 2), and means (31, 32) connecting the bearing housings (3, 4 and 4, 5) of the rolls pairs with each other. At least two successive calender nips (1, 2) are arranged so that in the successive nips the mutual distance between the longitudinal axes of the lower rolls (12, 14) is smaller than the corresponding mutual distance between the respective upper rolls (11, 13) of the nips, whereby the disposition of the rolls (11–14) forms a V-shaped angle as seen from the end of the calender machinery and thus forms an operating area between the nips for changing the rolls. The rolls are combined into nips advantageously using heatable pull rods inserted through the bearing housings.
    Type: Grant
    Filed: October 12, 2000
    Date of Patent: April 11, 2006
    Assignee: Metso Paper, Inc.
    Inventors: Heikki Kaarakka, Seppo Palonen, Ville Tiistola, Petteri Kokkonen, Markus Laitila, Esa Keskinen