Patents by Inventor Arto Kumpulainen

Arto Kumpulainen 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 for modernizing a multiroll calender, in particular for modernizing a supercalender and a modernized multiroll calender, in particular a modernized supercalender
    Patent number: 9133580
    Abstract: A method for modernizing a existing multiroll calender, having at least one stack of calender rolls (10, 20), each stack comprising at least two calender rolls (11, 12, 13, 14, 21, 22, 23, 24) and at least one of the calender rolls being a smooth-surfaced press-roll (12, 22). In an existing multiroll calender the smooth-surfaced press roll (12, 22) is replaced by an ultra thermo roll that is a thermo roll with a diameter substantially the same or less than the thermo roll to be replaced, so that the surface temperature of the ultra thermo roll when heated is at least 110° C., and has at least 10° C. higher than the surface temperature of the existing roll with the same heating fluid temperature and having flow channels arranged in such a way that vibration excitation is minimized, by being arranged to form a spiral geometry in the mantle.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: September 15, 2015
    Assignee: Valmet Technologies, Inc.
    Inventors: Jani Hakola, Lauri Aaltio, Mika Viljanmaa, Pekka Linnonmaa, Laura Savela, Arto Kumpulainen, Petri Ristola
  • METHOD FOR MODERNIZING A MULTIROLL CALENDER, IN PARTICULAR FOR MODERNIZING A SUPERCALENDER AND A MODERNIZED MULTIROLL CALENDER, IN PARTICULAR A MODERNIZED SUPERCALENDER
    Publication number: 20130231230
    Abstract: A method for modernizing a existing multiroll calender, having at least one stack of calender rolls (10, 20), each stack comprising at least two calender rolls (11, 12, 13, 14, 21, 22, 23, 24) and at least one of the calender rolls being a smooth-surfaced press-roll (12, 22). In an existing multiroll calender the smooth-surfaced press roll (12, 22) is replaced by an ultra thermo roll that is a thermo roll with a diameter substantially the same or less than the thermo roll to be replaced, so that the surface temperature of the ultra thermo roll when heated is at least 110° C., and has at least 10° C. higher than the surface temperature of the existing roll with the same heating fluid temperature and having flow channels arranged in such a way that vibration excitation is minimized, by being arranged to form a spiral geometry in the mantle.
    Type: Application
    Filed: February 21, 2013
    Publication date: September 5, 2013
    Applicant: Metso Paper, Inc.
    Inventors: Jani Hakola, Lauri Aaltio, Mika Viljanmaa, Pekka Linnonmaa, Laura Savela, Arto Kumpulainen, Petri Ristola