Patents Examined by J. Reed Satten, Jr.
  • Crushed and graded magnetite ore for manufacturing moulds and cores
    Patent number: 5865236
    Abstract: Crushed and graded magnetite ore is mixed with clay to form foundry moulds and cores. These moulds or cores are useful when casting non-ferrous metals or alloys, especially light metals and light-metal alloys.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: February 2, 1999
    Assignee: Georg Fischer Disa A/S
    Inventors: Preben Nordgaard Hansen, Niels W. Rasmussen, Emil Jespersen