Patents by Inventor Arvo Viertola

Arvo Viertola 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).

  • Device in the operation of a doctor in a paper/board machine
    Patent number: 5806136
    Abstract: A method and device in the operation of a doctor blade in a paper machine/board machine in which different quantities of lubricating medium are supplied into different areas in the longitudinal direction, i.e., along the width, of the doctor blade, independent of one another. A larger amount of lubricating medium is supplied into the area having the maximum extent of wear of the doctor blade.
    Type: Grant
    Filed: November 5, 1996
    Date of Patent: September 15, 1998
    Assignee: Valmet Corporation
    Inventor: Arvo Viertola
  • Method in the operation of a doctor in a paper/board machine
    Patent number: 5630908
    Abstract: A method and device in the operation of a doctor blade in a paper machine/board machine in which different quantities of lubricating medium are supplied into different areas in the longitudinal direction, i.e., along the width, of the doctor blade, independent of one another. A larger amount of lubricating medium is supplied into the area having the maximum extent of wear of the doctor blade.
    Type: Grant
    Filed: September 22, 1994
    Date of Patent: May 20, 1997
    Assignee: Valmet Corporation
    Inventor: Arvo Viertola