Patents by Inventor Gunnar E. Holm

Gunnar E. Holm 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: 6041638
    Abstract: The invention relates to a method for the continuous extrusion of a metallic material, in which extrusion process the feedstock to be extruded is fed into the extrusion apparatus (4) by means of a feed member (2) advantageously provided with a groove on its outer circumference and a cooperating shoe (3) installed in said groove. According to the invention, the feed member (2) and the shoe (3) are adjusted at a desired distance from each other. In order to essentially maintain said desired distance and to eliminate the extrusion forces, the position of the shoe (3) in relation to the feed member (2) is maintained by means of an extrusion member (8) connected to the shoe (3).
    Type: Grant
    Filed: March 17, 1997
    Date of Patent: March 28, 2000
    Assignee: Outokumpu Copper Oy
    Inventors: Tuomas Mikael Pinomaa, Hannu Tapani Pajala, Gunnar E. Holm