Patents by Inventor Claude Bak

Claude Bak 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).

  • Method and installation for the continuous manufacture of pipes from spheroidal graphite cast-iron having a controlled structure
    Patent number: 4800949
    Abstract: The invention concerns a method and apparatus for thermally treating cast-iron pipes formed in a continuous casting die. The pipe or tube undergoes tempering by passing through a vat which is located downstream from the continuous casting die. The vat contains a continuously cooled bath of fluidized sand or the like which lowers the temperature of the tube in a uniform manner and makes it possible to obtain a very precise and homogeneous tube structure.
    Type: Grant
    Filed: December 3, 1987
    Date of Patent: January 31, 1989
    Assignee: Pont-A-Mousson S.A.
    Inventors: Claude Bak, Rio Bellocci, Yves Gourmel, Michel Pierrel
  • Method for inoculating liquid metal cast under low pressure
    Patent number: 4527608
    Abstract: Liquid metal M in a casting ladle 1 located under a mold A is cast uphill under low pressure into the mold cavity 10 through a vertical shaft 3. The metal is treated by a soluble inoculation wire 13 suspended down through the cavity over a length L greater than the height h of the mold with its lower part H submerged in the liquid metal filling the shaft. The ladle pressure is maintained until the wire is fully dissolved, and then raised to fill the mold cavity with the inoculated liquid metal.
    Type: Grant
    Filed: May 23, 1984
    Date of Patent: July 9, 1985
    Assignee: Pont-A-Mousson S.A.
    Inventors: Claude Bak, Rio Bellocci, Serge Colmet