Patents by Inventor Peter M. Cowx

Peter M. Cowx 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).

  • Treatment of oxide-containing dusts
    Patent number: 5368627
    Abstract: An arc is drawn between a movable electrode (E) (preferably graphite), and a fixed electrode (7) in a furnace when smelting metal oxides using a plasma. Shielding gas, e.g. N. is introduced into plenum (P) about the movable electrode (E) to prevent metal vapor from settling on the inner lining (3;9) of the furnace (1). The movable electrode (E) may be connected to a mast (30) on the furnace roof (4) to align that electrode (E) in its path through a hole (10) in the roof (4) into the furnace chamber (C).
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: November 29, 1994
    Inventor: Peter M. Cowx