Patents by Inventor Martti T. Oksanen

Martti T. Oksanen 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: 4321109
    Abstract: An apparatus for introducing an endless fabric loop over rolls in a paper making machine in connection with changing the fabric therein comprising an inflatable changing bag which, upon being inflated, has a vertical cross-sectional configuration in the machine direction which is substantially the same as the configuration of the intended run of the fabric loop over the rolls. The changing bag is located in its deflated condition within the fabric loop which is to be introduced over the rolls whereupon the bag is inflated with the fabric loop encircling the same. The assembly of the inflated changing bag and the encircling fabric loop is located on one side of the paper machine in the region adjacent to the rolls onto which the fabric loop is to be introduced whereupon the fabric loop is moved from over the inflated changing bag onto the paper machine so that it encircles the rolls.
    Type: Grant
    Filed: August 15, 1980
    Date of Patent: March 23, 1982
    Assignee: Valmet Oy
    Inventors: Eino J. Haltsonen, Martti T. Oksanen
  • Patent number: 4267018
    Abstract: A method and apparatus for introducing an endless fabric loop over rolls in a paper making machine in connection with changing the fabric therein comprising an inflatable changing bag which, upon being inflated, has a vertical cross-sectional configuration in the machine direction which is substantially the same as the configuration of the intended run of the fabric loop over the rolls. The changing bag is located in its deflated condition within the fabric loop which is to be introduced over the rolls whereupon the bag is inflated with the fabric loop encircling the same. The assembly of the inflated changing bag and the encircling fabric loop is located on one side of the paper machine in the region adjacent to the rolls onto which the fabric loop is to be introduced whereupon the fabric loop is moved from over the inflated changing bag onto the paper machine so that it encircles the rolls.
    Type: Grant
    Filed: August 15, 1979
    Date of Patent: May 12, 1981
    Assignee: Valmet Oy
    Inventors: Eino J. Haltsonen, Martti T. Oksanen