Patents by Inventor Mauri Palmu

Mauri Palmu 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 manufacturing a thin copper plate with flow conduits
    Patent number: 4412373
    Abstract: A method of manufacturing a thin plate or band from copper or a copper alloy is disclosed, the plate or band having flow conduits parallel to its plane, in which a thicker copper plate billet, which also has flow conduits parallel to its plane and the total wall thickness of which, as measured in a direction perpendicular to the plane of the plate, is equal to the thickness of the plate on both sides of the flow conduit, is cold worked to its final material thickness, whereafter the flow conduit flattened during the rolling is opened by means of pressure produced inside it.
    Type: Grant
    Filed: December 24, 1980
    Date of Patent: November 1, 1983
    Assignee: Outokumpu Oy
    Inventors: Ahti Kosonen, Mauri Palmu