Patents by Inventor John A. Wellslager

John A. Wellslager 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).

  • Patent number: 5043029
    Abstract: An apparatus and method for casting metal strip include a moving chill body that has a quench surface. A nozzle mechanism deposits a stream of molten metal on a quenching region of the quench surface to form the strip. The nozzle mechanism has an exit portion with a nozzle orifice. A depletion mechanism supplies a reducing gas to a depletion region located adjacent to and upstream from the quenching region. The reducing gas reacts exothermically to lower the density provide a low density reducing atmosphere within the depletion and substantially prevent formation of gas pockets in the strip.
    Type: Grant
    Filed: December 13, 1990
    Date of Patent: August 27, 1991
    Assignee: Allied-Signal Inc.
    Inventors: Howard H. Liebermann, John A. Wellslager, Lance A. Davis
  • Patent number: 4869312
    Abstract: An apparatus and method for casting metal strip includes a moving chill body that has a quench surface. A nozzle mechanism deposits a stream of molten metal on a quenching region of the quench surface to form the strip. The nozzle mechanism has an exit portion with a nozzle orifice. A depletion mechanism supplies a reducing gas to a depletion region located adjacent to and upstream from the quenching region. The reducing gas reacts exothermically to lower the density to provide a low density reducing atmosphere within the depletion and substantially prevent formation of gas pockets in the strip.
    Type: Grant
    Filed: August 20, 1986
    Date of Patent: September 26, 1989
    Assignee: Allied Corporation
    Inventors: Howard H. Liebermann, John A. Wellslager, Lance A. Davis
  • Patent number: 4260007
    Abstract: An improvement is provided in a method for the continuous casting of glassy metal alloy filaments wherein molten alloy is extruded from a pressurized crucible through an extrusion orifice onto a rotating quench surface. The invention provides a boric oxide seal for the extrusion orifice that prevents oxidation of the molten alloy prior to initiation of extrusion. At initiation of extrusion, the seal is conveniently expelled from the orifice with the leading surge of the extruded molten alloy.
    Type: Grant
    Filed: March 14, 1979
    Date of Patent: April 7, 1981
    Assignee: Allied Chemical Corporation
    Inventors: John A. Wellslager, Susan L. Rosenberg