Patents by Inventor Bertil Hanas

Bertil Hanas 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).

  • Stirring metal in a continuous casting mold
    Patent number: 4478273
    Abstract: For continuous casting with stirring of the molten metal in the mold, DC is passed lengthwise through the molten metal in the mold so as to effect the stirring.
    Type: Grant
    Filed: May 18, 1983
    Date of Patent: October 23, 1984
    Assignee: ASEA Aktiebolag
    Inventor: Bertil Hanas
  • Continuous casting temperature control apparatus
    Patent number: 4469162
    Abstract: The invention relates to a mechanism for continuous casting, such as from a melt container. Between the melt container and the casting mold there is arranged an intermediate ladle having a heating device and an outlet to the mold as well as an indicator for predicting the temperature in the melt container. The output signal of the indicator is adapted to be compared with a desired value signal to obtain a comparison signal to control the heating device for substantially constant temperature at the outlet of the intermediate ladle.
    Type: Grant
    Filed: November 16, 1983
    Date of Patent: September 4, 1984
    Assignee: Asea Akt
    Inventors: Bertil Hanas, Gunter Rudolph
  • Molten metal heating, stirring and casting apparatus
    Patent number: 4336411
    Abstract: A molten steel ladle has a melt electrode in its side wall near its bottom so a DC arc can be formed with molten metal in the ladle for heating and stirring the metal, the ladle being also used for casting. The melt electrode is free from the ladle's casting nozzle and the outside of the ladle is free from projections extending beyond the ladle's trunions, so the ladle can be crane-carried in the usual manner.
    Type: Grant
    Filed: February 24, 1981
    Date of Patent: June 22, 1982
    Assignee: ASEA Aktibolag
    Inventors: Bertil Hanas, Sven-Einar Stenkvist
  • Continuous casting
    Patent number: 4243092
    Abstract: Molten metal is continuously cast by being flowed through a casting pipe leading into a continuous casting mold, the metal flowing through the pipe being inductively stirred with the stirring motion through the momentum of the metal continuing in the mold.
    Type: Grant
    Filed: February 9, 1979
    Date of Patent: January 6, 1981
    Assignee: ASEA Aktiebolag
    Inventor: Bertil Hanas