Patents by Inventor Jefferey S. Coombs

Jefferey S. Coombs 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: 4938275
    Abstract: A method and apparatus for the production of spray deposited ingot, disc or bar is provided it which a spray of gas atomized molten metal or metal alloy particles generated with an atomizing device is directed onto a collector. The collector is rotated about an axis of rotation and a controlled amount of heat is extracted from the atomized particles in flight and on deposition. In order to maintain a substantially constant distance between the atomizing device and the surface of the deposited metal or metal alloy there is relative movement between the atomizing device and the collector. The spray is directed so that the main axis of the spray and the axis of rotation of the collector are inclined at an angle to one another; and the spray is oscillated so that the main axis of the spray oscillates relative to the axis of rotation of the collector.
    Type: Grant
    Filed: March 1, 1989
    Date of Patent: July 3, 1990
    Assignee: Osprey Metals Limited
    Inventors: Alan G. Leatham, Jefferey S. Coombs, Paul B. Davis