Patents by Inventor John L. Emmons

John L. Emmons 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).

  • Joining of composite beryllium-aluminum parts
    Patent number: 6779713
    Abstract: A method for joining metal parts in which an aluminum rich surface is produced on a first metal part by selective removal of the beryllium component of a beryllium-aluminum alloy, as by said etching. The aluminum rich surface may then be joined to another aluminum rich surface by a brazing.
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: August 24, 2004
    Assignee: The Peregrine Falcon Corporation
    Inventors: John L. Emmons, Robert E. Hardesty
  • Method of brazing beryllium-aluminum alloy members to form a beryllium-aluminum alloy assembly and coating the beryllium-aluminum alloy assembly
    Patent number: 6543678
    Abstract: A method for brazing beryllium-aluminum alloy members to form a beryllium-aluminum alloy assembly and coating the beryllium-aluminum alloy assembly in which an aluminum-silicon based braze alloy is placed between the beryllium-aluminum members at the locations for forming braze joints. The aluminum-silicon based braze alloy is surrounded by a brazing flux comprising aluminum fluoride. The beryllium-aluminum alloy members and the aluminum-silicon based braze alloy are heated to form the beryllium-aluminum alloy assembly. Oxidized surfaces appearing on the beryllium-aluminum alloy members are removed. Thereupon, the beryllium-aluminum alloy assembly is coated by plasma deposition of alumina-titania powder.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: April 8, 2003
    Assignee: The Peregrine Falcon Corporation
    Inventors: John L. Emmons, Robert Hardesty