Patents by Inventor Mauri V. Rantanen

Mauri V. Rantanen 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 for manufacturing tubes
    Patent number: 4876870
    Abstract: The method of the invention relates to the manufacturing of tubes of a continuously cast or the like billet by means of cold working, wherein the temperature of the material rises to the recrystallization range due to the influence of the deformation resistance. The method is particularly related to the further working of billets made of non-ferrous metals such as copper, aluminum, nickel, zirconium and titanium, as well as of their alloys.
    Type: Grant
    Filed: March 23, 1988
    Date of Patent: October 31, 1989
    Assignee: Outokumpu Oy
    Inventor: Mauri V. Rantanen