Patents by Inventor Jari Tiitta

Jari Tiitta 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
  • Patent number: 7799171
    Abstract: A method and a system to control a reeling profile of a material web reel (30), when, in the forming of a material web reel (30), a web is reeled around a reeling core and when in an adjustment of CD-directional profiles of the web reel, profiling devices (8) have been applied. For adjusting quality profiles and reeling profiles of the web, profiling devices are managed with the help of profile measurings of the roller nip and/or of the profile measurings of the reel (30), which are obtained from the reel-up (2). A measuring device (40) for a measuring of a CD-directional hardness profile of the fiber web reel includes a measuring head (43), which is connected with a loading means (41, 42), which loads the measuring head against the fiber web reel. The motion course of the measuring head is linear.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: September 21, 2010
    Assignee: Metso Paper, Inc.
    Inventors: Tapio Mäenpää, Jari Tiitta, Petteri Lannes, Rami Vanninen, Tatu Pitkänen, Heikki Kettunen, Matti Innala, John Shakespeare, Toni Heikkilä, Topi Tynkkynen, Teppo Kojo, Risto Mäkinen, Marko Tiilikainen, Matti M. Kemppainen
  • Patent number: 7757990
    Abstract: In a reel change in the reeling process of a fiber material web, the fiber material web (W) running to a reel that is becoming full is changed to run around a new reeling core (2) brought to a reel change position in such a way that the web is made to adhere onto the surface of the new reeling core (2). The web (W) is made to adhere onto the surface of the reeling core (2) by a change in the properties of the material on the surface of the reeling core (2). The material is a combination of an adhesive area (6a) on the surface of the reeling core and a protective layer (6b) on top of the adhesive area, and the properties of the material are changed by removing the protective layer (6b).
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: July 20, 2010
    Assignee: Metso Paper, Inc.
    Inventors: Jari Tiitta, Pekka Ruha, Topi Tynkkynen, Tatu Pitkänen, Petteri Lannes, Teppo Kojo, Hannu Kasula, Matti Kemppainen
  • Publication number: 20100032118
    Abstract: The invention relates to a measuring roll for a fibre-web machine, which roll has a shell on whose surface a sensor is arranged, and which roll is coated with a coating layer proper. The roll comprises at least one protective coating layer placed under the coating layer proper and on top of the sensor in such a way that when the coating layer proper is replaced, the protective coating layer remains substantially on top of the sensor and the roll shell when the coating layer proper is removed. The invention also relates to a method for coating a measuring roll of a fibre-web machine and to a method for replacing a coating of a measuring roll of a fibre-web machine.
    Type: Application
    Filed: December 4, 2007
    Publication date: February 11, 2010
    Inventors: Petteri Lannes, Tatu Pitkanen, Jari Tiitta, Marko Tiilikainen, Teppo Kojo, Reijo Huuskonen
  • Publication number: 20080149757
    Abstract: In a reel change in the reeling process of a fiber material web, the fiber material web (W) running to a reel that is becoming full is changed to run around a new reeling core (2) brought to a reel change position in such a way that the web is made to adhere onto the surface of the new reeling core (2). The web (W) is made to adhere onto the surface of the reeling core (2) by a change in the properties of the material on the surface of the reeling core (2). The material is a combination of an adhesive area (6a) on the surface of the reeling core and a protective layer (6b) on top of the adhesive area, and the properties of the material are changed by removing the protective layer (6b).
    Type: Application
    Filed: February 3, 2006
    Publication date: June 26, 2008
    Applicant: METSO PAPER, INC.
    Inventors: Jari Tiitta, Pekka Ruha, Topi Tynkkynen, Tatu Pitkanen, Petteri Lannes, Teppo Kojo, Hannu Kasula, Matti Kemppainen
  • Publication number: 20080017341
    Abstract: A method and a system to control a reeling profile of a material web reel (30), when, in the forming of a material web reel (30), a web is reeled around a reeling core and when in an adjustment of CD-directional profiles of the web reel, profiling devices (8) have been applied. For adjusting quality profiles and reeling profiles of the web, profiling devices are managed with the help of profile measurings of the roller nip and/or of the profile measurings of the reel (30), which are obtained from the reel-up (2). A measuring device (40) for a measuring of a CD-directional hardness profile of the fiber web reel includes a measuring head (43), which is connected with a loading means (41, 42), which loads the measuring head against the fiber web reel. The motion course of the measuring head is linear.
    Type: Application
    Filed: July 1, 2005
    Publication date: January 24, 2008
    Applicant: METSO PAPER, INC.
    Inventors: Tapio Maenpaa, Jari Tiitta, Petteri Lannes, Rami Vanninen, Tatu Pitkanen, Heikki Kettunen, Matti Innala, John Shakespeare, Toni Heikkila, Topi Tynkkynen, Teppo Kojo, Risto Makinen, Marko Tiilikainen, Matti Kemppainen
  • 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: 20070185685
    Abstract: A machine relating to papermaking is located at a production plant (100), which is equipped with a plant data system (155). A teleservice connection (189) based on a data communication link is arranged between the production plant (100) and a teleservice center (200). The condition, state and/or performance of the machine units and/or processes and/or automation systems of the production line at the production plant are monitored by monitoring systems, such as condition monitoring systems (130) and/or performance measuring systems (140) and/or quality assessment systems (150) and diagnostic units (110), in order to recognize emergency situations. An automatic service process is started in an emergency situation based on the signals given by the monitoring systems. The system includes means for bringing about the automatic service process.
    Type: Application
    Filed: February 18, 2005
    Publication date: August 9, 2007
    Inventors: Petteri Lannes, Jari Tiitta, Jouni Pyotsia, Tatu Pitkanen, Kaarlo Lackman, Timo Pekkarinen
  • 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