Patents Assigned to Metall-Invent S.A.
  • Method of and device for making rods, tubes and profiled articles
    Patent number: 4075881
    Abstract: A method of and device for making rods, tubes and profiled articles directly from a melt, especially metallic melt, by extrusion pressing by means of a forming tool and die. The melt charged into a receiving compartment of the device in successive batches is cooled so as to be transformed into a thermal-plastic condition. There is a build up layer by layer to form a bar and alternately with the charging of the receiving compartment the bar stepwise is subjected to pressure to extrude a portion of a strand.
    Type: Grant
    Filed: December 4, 1975
    Date of Patent: February 28, 1978
    Assignee: Metall-Invent S.A.
    Inventor: Alfred Kreidler