Patents by Inventor Ilkka Naatti

Ilkka Naatti 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).

  • Patent number: 7832677
    Abstract: A method and an apparatus for controlling the cross-directional nip profile of a reeling nip in a reeler, in which the reeling nip is arranged by means of a reeling core or a growing machine reel and at least one loop of an endless supporting member continuous in the direction of the axis of the reeling core. To control the cross-directional nip profile of the reeling nip, variables proportional to the tension of the supporting member are measured, cross-directional tension profile of the supporting member is determined on the basis of said variables, and further, a cross-directional nip profile of the reeling nip is determined, said nip profile being controlled by adjusting the determined cross-directional tension profile of the supporting member.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: November 16, 2010
    Assignee: Metso Paper, Inc.
    Inventors: Petteri Lannes, Tatu Pitkänen, Ilkka Naatti, Jari Tiitta, Rami Vanninen, Marko Tiilikainen
  • Publication number: 20080251628
    Abstract: The invention relates to a method and an apparatus in reeling up, in which a paper web or the like (W) is reeled around a center-driven reel spool (5), which is transferred from the primary reeling to the secondary reeling, in which reeling the reel spool (5) is transferred in accordance with the growth of the reel by means of a transfer device (7) at least at some stage of the reeling and the web is brought at said stage from below the reel spool (5) via a reeling nip (N1) formed by the reel spool (5) and a loop (1) of an endless supporting member. According to the invention the web (W) is guided around the reel spool (5) during the reeling via an auxiliary nip (N2) formed by means of the reel spool (5) and the roll (10, 10?).
    Type: Application
    Filed: February 11, 2005
    Publication date: October 16, 2008
    Inventors: Matti Kemppainen, Vesa Riihela, Teppo Kojo, Risto Makinen, Ilkka Naatti, Marko Tiilikainen
  • Publication number: 20080006730
    Abstract: A method and an apparatus for controlling the cross-directional nip profile of a reeling nip in a reeler, in which the reeling nip is arranged by means of a reeling core or a growing machine reel and at least one loop of an endless supporting member continuous in the direction of the axis of the reeling core. To control the cross-directional nip profile of the reeling nip, variables proportional to the tension of the supporting member are measured, cross-directional tension profile of the supporting member is determined on the basis of said variables, and further, a cross-directional nip profile of the reeling nip is determined, said nip profile being controlled by adjusting the determined cross-directional tension profile of the supporting member.
    Type: Application
    Filed: June 30, 2005
    Publication date: January 10, 2008
    Applicant: METSO PAPER, INC.
    Inventors: Petteri Lannes, Tatu Pitkanen, Ilkka Naatti, Jari Tiitta, Rami Vanninen, Marko Tiilikainen
  • Publication number: 20070023561
    Abstract: A belt reeler has a reeling nip (7) formed by a reeling core (6) or a growing machine reel (4) and at least one endless supporting member (3) traveling at least via a first wire guiding roll (1), and a second wire guiding roll (2). Several parameters of the belt reeler are adjusted simultaneously to adjust the reeling process, of which parameters at least the first parameter and the second parameter are one of the following: web tension (P1), wire tension (P2), distance of the machine reel from the wire turning roll (P3), depression of the wire/machine reel (P4), surface draw (P5, P5?, P5?), and peripheral force (P6).
    Type: Application
    Filed: July 3, 2006
    Publication date: February 1, 2007
    Inventors: Matti Kemppainen, Jari Tiitta, Vesa Riihela, Topi Tynkkynen, Teppo Kojo, Risto Makinen, Marko Tiilikainen, Ilkka Naatti
  • Publication number: 20060175456
    Abstract: Before a reel change a new core (5) is brought to a change station. When the old reel (R) is full, the web is changed to travel to the new core periphery and primary reeling beings. The web forms a reel through a reeling nip (N1) between the loop of an endless supporting member (1) and the core. A change is made to secondary reeling, where a portion of the supporting member (1) brings the web to the reel, to move over to the reel in a nip (N) between said portion and the reel outer periphery. The core (5) is transferred so the nip (N) moves forward. A first guide roll (2) is transferred towards the core periphery so the distance of the nip (N1) located between the core (5) and the loop of the supporting member (1) from the first guide roll (2) changes in the primary reeling.
    Type: Application
    Filed: June 10, 2004
    Publication date: August 10, 2006
    Inventors: Ilkka Naatti, Teppo Kojo, Risto Makinen, Vesa Riihela, Matti Kemppainen, Olli Tuominen, Topi Tynkkynen
  • Publication number: 20060004637
    Abstract: A papermaking machine unit has a measurement system which provides performance data. The machine supplier sells maintenance and process support services at a price determined by the level of performance of the machine within a given time period. The supplier and the customer agree on a desired performance level, and the charge to the customer is set at a fixed price plus a variable price based on performance level. The amount paid to the supplier will be greater than the fixed price if performance is greater than the desired level, and will be less than the fixed price if performance is less than the desired level.
    Type: Application
    Filed: July 1, 2004
    Publication date: January 5, 2006
    Inventors: Tatu Pitkanen, Timo Pekkarinen, Ilkka Naatti, Kaarlo Lackman
  • Publication number: 20030168548
    Abstract: In the method in splicing in a continuous unwind, the surface speed of a new machine reel (R2) which is brought to the unwind and closed with a leading splice is accelerated in the initial acceleration to make the speed correspond to the speed of the old machine reel (R1) that is becoming empty, so that the fastening splice of the new machine reel can be joined to the web of the old machine reel. The loading affecting the leading splice and/or fastening splice of the new machine reel (R2) during the initial acceleration is reduced. The present invention also relates to an apparatus for implementing the method.
    Type: Application
    Filed: March 18, 2003
    Publication date: September 11, 2003
    Inventors: Jorma Kinnunen, Ilkka Naatti