Patents by Inventor Laijo Hirsimaki

Laijo Hirsimaki 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 of and an arrangement for supporting the frame of a paper machine
    Patent number: 5032228
    Abstract: The invention relates to a method and an arrangement for supporting the frame of a paper machine or the like. In the method, the frame is supported at a point below it for the time the wire or felt is being changed by means of a separate support member (11) on a normal frame supporting structure (1), whereby it is not necessary to strengthen or support the other structures during the change. The arrangement comprises a support member (11) provided under the frame and comprising a support (14) arranged to be displaced so as to rest on a support element (15) attached to the supporting structure (1) to support the frame. The support (14) supports the frame on its normal supporting structure (1) while the lower vertical spacers (9) of the frame are out of place.
    Type: Grant
    Filed: March 21, 1990
    Date of Patent: July 16, 1991
    Assignee: Oy Tampella AB
    Inventor: Laijo Hirsimaki