Patents by Inventor John H. Moll

John H. Moll 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: 5213610
    Abstract: A method for atomizing a titanium-based material to particulates in a controlled atmosphere. In the method, titanium is skull melted in a crucible. The molten titanium-based material is transferred to a heated tundish. The molten titanium-based material may be stabilized in the heated tundish and then formed into a free-falling stream. The free-falling stream of the molten titanium-based material is impinged with an inert gas jet to atomize the molten titanium-based material. The method also includes cooling the atomized titanium-based material, and collecting the cooled atomized titanium-based material.
    Type: Grant
    Filed: January 6, 1992
    Date of Patent: May 25, 1993
    Assignee: Crucible Materials Corporation
    Inventors: Charles F. Yolton, Thomas Lizzi, John H. Moll
  • Patent number: 4999051
    Abstract: A system and method for atomizing a titanium-based material to particulates in a controlled atmosphere. The system includes a crucible for skull melting a titanium-based material. The molten titanium-based material is transferred to a tundish for receiving the molten titanium-based material. The tundish has a bottom portion with an aperture formed therein and is heated. A molten metal nozzle for forming the molten titanium-based material into a free-falling stream exiting from the tundish is provided, the molten metal nozzle being coaxially aligned with the aperture of the tundish. A baffle may be disposed in the tundish for stabilizing the free-falling stream of the molten titanium-based material. The molten titanium-based material is atomized by impinging the free-falling stream of the molten titanium-based material with an inert gas jet issuing from a gas nozzle.
    Type: Grant
    Filed: September 27, 1989
    Date of Patent: March 12, 1991
    Assignee: Crucible Materials Corporation
    Inventors: Charles F. Yolton, Thomas Lizzi, John H. Moll
  • Patent number: 4544404
    Abstract: A method for producing titanium particles suitable for powder metallurgy applications by atomizing a free-falling stream of molten titanium. Prior to atomization the molten titanium is maintained in a crucible lined with a solidified layer of titanium which separates the molten mass of titanium from the crucible interior to protect it against contamination. The bottom of the crucible has a nozzle through which the titanium passes to form the free-falling stream. The nozzle may be likewise lined with a layer of solidified titanium which maintains the molten titanium passing through the nozzle out of contact with the nozzle material further protecting the titanium from contamination. The free-falling stream is contacted by an inert gas jet to atomize the stream into spherical particles, which are solidified and collected.
    Type: Grant
    Filed: March 12, 1985
    Date of Patent: October 1, 1985
    Assignee: Crucible Materials Corporation
    Inventors: Charles F. Yolton, John H. Moll