Patents by Inventor Andreas Kaleja

Andreas Kaleja 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).

  • Molten metal dosing furnace with metal treatment and level control and method
    Patent number: 6500228
    Abstract: A dosing furnace (10) with metal treatment and level control includes a holding chamber (12) for containing a supply of molten metal (50), a pump (22) connected to the holding chamber (12), a molten metal treatment chamber (16, 18) located at an outlet (26) of the pump (22), and a dosing chamber (40) located downstream and in fluid communication with the molten metal treatment chamber (16, 18). A molten metal level sensor (56) is located in the dosing chamber (40). The pump (22) is a variable speed pump having a pump inlet (24) connected to the holding chamber (12) and configured to pump the molten metal (50) through the dosing furnace (10) during operation. The molten metal level sensor (56) is connected to the pump (22) for providing a pump speed control signal to the pump (22).
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: December 31, 2002
    Assignee: Alcoa Inc.
    Inventors: Marshall A. Klingensmith, Andreas Kaleja, Michael J. Kinosz
  • MOLTEN METAL DOSING FURNACE WITH METAL TREATMENT AND LEVEL CONTROL AND METHOD
    Publication number: 20020185789
    Abstract: A dosing furnace (10) with metal treatment and level control includes a holding chamber (12) for containing a supply of molten metal (50), a pump (22) connected to the holding chamber (12), a molten metal treatment chamber (16, 18) located at an outlet (26) of the pump (22), and a dosing chamber (40) located downstream and in fluid communication with the molten metal treatment chamber (16, 18). A molten metal level sensor (56) is located in the dosing chamber (40). The pump (22) is a variable speed pump having a pump inlet (24) connected to the holding chamber (12) and configured to pump the molten metal (50) through the dosing furnace (10) during operation. The molten metal level sensor (56) is connected to the pump (22) for providing a pump speed control signal to the pump (22).
    Type: Application
    Filed: June 11, 2001
    Publication date: December 12, 2002
    Applicant: Alcoa Inc.
    Inventors: Marshall A. Klingensmith, Andreas Kaleja, Michael J. Kinosz