Patents by Inventor Tarja Hanska

Tarja Hanska 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 and equipment for cleaning and maintaining rolls
    Patent number: 6905573
    Abstract: The surface of a web is monitored by a fault detection system (20), a machine condition monitoring system, a quality measurement system, a web moisture measurement and/or a web temperature measurement and the soiled part of the surface of the roll is detected and localized by means of a soiling monitoring apparatus (31, 35; 60). A control system (41) controls a cleaning device (40) to remove the detected soiling. As a web (W) travels in a paper or board production or finishing process or in finishing machinery the web and/or the surface of the roll is monitored and after a detected deviation the surface thereof is momentarily spread with a liquid while machinery is running at the same time as the web (W) travels over said roll surface.
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: June 14, 2005
    Assignee: Metso Paper, Inc.
    Inventors: Tapio Mäenpää , Timo Vuorimies, Pekka Koivukunnas, Aaron Mannio, Olli-Pekka Väkevä , Kari Hasanen, Tarja Hanska, Pekka Linnonmaa, Markku Kyytsönen, Helena Leppäkoski, Markus Laitila, Markku Kojo, Toni Seppänen, Marjaana Toppila
  • Method and equipment for cleaning and maintaning rolls
    Publication number: 20040035540
    Abstract: The [invention relates to a method and equipment for cleaning rolls of a paper machine or board machine. In the method, the ]surface of a web is monitored by a fault detection system (20), a machine condition monitoring system, a quality measurement system, a web moisture measurement and/or a web temperature measurement and the soiled part of the surface of the roll is detected and localized by means of a soiling monitoring apparatus (31, 35; 60). [Information on the detection and location of soiling is delivered from the soiling monitoring apparatus (31, 35; 60) to a]A control system (41) [of the cleaning device, which ]controls [the]a cleaning device (40) to remove the detected soiling. [The equipment for cleaning rolls comprises of a soiling monitoring apparatus (31, 35; 60), a cleaning device (40) and a control system (41) for controlling the cleaning device (40).
    Type: Application
    Filed: June 23, 2003
    Publication date: February 26, 2004
    Inventors: Tapio Menp, Timo Vuorimies, Pekka Koivukunnas, Aaron Mannio, Olli-Pekka Vkev, Kari Hasanen, Tarja Hanska, Pekka Linnonmaa, Markku Kyytsnen, Helena Leppkoski, Markus Laitila, Markku Kojo, Toni Seppnen, Marjaana Toppila