Patents by Inventor Martti E. Huhtala

Martti E. Huhtala 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).

  • Means for supporting the material under treatment in continuous-action heat treatment furnaces
    Patent number: 4538986
    Abstract: The invention concerns a means for supporting the material being treated in continuous-action heat treatment furnaces. The support means consists of a cooled roller (5), on the periphery of which at least two cooled rollers (7) with substantially smaller diameter have been placed. The roller (5) is placed outside the furnaces (13, 16) and/or between two consecutive furnaces. Supporting of the material (18) is carried out by the aid of one roller (7) at a time, the roller (7) rotating at the speed of moving of the material. By the aid of the drive (3) provided for the roller (5), the mutual positioning of the rollers (7) can be changed.
    Type: Grant
    Filed: January 18, 1984
    Date of Patent: September 3, 1985
    Assignee: Outokumpu Oy
    Inventors: Seppo I. Blomqvist, Markku T. Saarela, Martti E. Huhtala, Raimo A. Niska, Hannu A. Vaittinen