Patents Assigned to Scandiamant Aktiebolag
  • High pressure apparatus
    Patent number: 4140448
    Abstract: A high pressure apparatus for the manufacture of diamonds includes a pressure chamber formed of holes in annular, disc-like members arranged one after the other and a pair of opposed pressure-exerting members movable into the chamber formed by the holes with compressible gaskets arranged between adjacent disc-like members. The pressure exerting members are frusto-conical and the ends of the holes adjacent these members are similarly shaped.
    Type: Grant
    Filed: March 27, 1978
    Date of Patent: February 20, 1979
    Assignee: Scandiamant Aktiebolag
    Inventors: Bertram Brinkeborn, Henry Halldin, Hakan Lindqvist, Erik Lundblad, Kjell Nilsson, Pertti Syvakari