Patents by Inventor Ilkka Rata

Ilkka Rata 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).

  • Caring doctor blade and method for manufacture of same
    Patent number: 6416843
    Abstract: The invention concerns a caring doctor blade for a paper/board machine, which blade comprises layers of fiberglass and carbon fiber and a caring layer as a rigid laminated structure, which caring layer comprises carbon fiber and grinding particles in direct vicinity of the carbon fibers. The orientation of the fiberglass layers is parallel to the longitudinal axis of the blade, and at least in some of the layers that contain carbon fiber the orientation of the carbon fibers is substantially diverging from the direction of the longitudinal axis of the blade. The invention also concerns a method for manufacture of a doctor blade for a paper/board machine by means of a pultrusion method.
    Type: Grant
    Filed: May 4, 1999
    Date of Patent: July 9, 2002
    Assignee: Metso Paper, Inc.
    Inventors: Ilkka Rata, Juhani Vestola
  • Loading hose for use in a paper machine doctor or coating device
    Patent number: 6361656
    Abstract: A loading hose for use in a paper machine doctor or coating device, which loading hose is located between the doctor's or coating device's blade support and rotatably arranged blade holder, is arranged to load the doctor blade of the doctor or the coating blade of the coating device. The loading hose incorporates a flexible casing, which is pressure-resistant and of a uniform cross-section. The loading hose includes at least one stiffening member attached to the casing and arranged to lie against either the blade support or the blade holder.
    Type: Grant
    Filed: November 19, 1999
    Date of Patent: March 26, 2002
    Assignee: Metso Paper, Inc.
    Inventor: Ilkka Rata
  • Beam structure in a pulp machine/paper machine/board machine or in a paper/board finishing device
    Patent number: 6361655
    Abstract: A beam structure (10) made of a composite for a pulp machine/paper machine/board machine or for a paper/board finishing device. The beam (10, 10a1, 10a2) is formed of a first curved part (12) and of a second straight part (13) joined thereto, to which second straight part (13) a doctoring, coating or measurement apparatus (110) is attached.
    Type: Grant
    Filed: October 22, 1999
    Date of Patent: March 26, 2002
    Assignee: Valmet Corporation
    Inventors: Kari Holopainen, Ilkka Rata, Jukka Samppala, Juha Isometsä, Heikki Toivanen
  • Doctor blade
    Publication number: 20010052401
    Abstract: A doctor blade for use in cleaning a roll in a paper machine comprises a thermosetting plastic polymer material selected from the group consisting of vinylesterurethanes and polyether amides.
    Type: Application
    Filed: March 9, 2001
    Publication date: December 20, 2001
    Inventors: Jouni Kirjava, Ilkka Rata, Tommi Vainio
  • Composite blade and a method for its manufacture
    Publication number: 20010011401
    Abstract: A composite blade, in which there is an essentially plate-like blade component with a composite-construction and retention members arranged in its rear part is intended to be installed in a special blade holder with the retention members remaining in the throat of the blade holder. The retention members are formed of a profiling arranged as a lateral extension of the blade component. The profiling extends essentially over the entire length of the blade and is of the same piece as the blade component.
    Type: Application
    Filed: February 5, 2001
    Publication date: August 9, 2001
    Applicant: Metso Paper, Inc.
    Inventor: Ilkka Rata