Patents by Inventor Anne Elizabeth Kolman

Anne Elizabeth Kolman 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).

  • Combustion liner for gas turbine formed of cast nickel-based superalloy
    Patent number: 7540156
    Abstract: A combustion liner for a gas turbine combustion system is provided. The combustion liner comprises a combustion zone between an inlet end and an exhaust end. The combustion liner comprises a one-piece casting construction. The combustion liner is formed from a nickel-based superalloy having strength characteristics.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: June 2, 2009
    Assignee: General Electric Company
    Inventors: Mark Roger Brown, Thomas Frank Fric, Thomas Edward Johnson, Anne Elizabeth Kolman
  • Multi-nozzle combustion end cover vacuum brazing process
    Patent number: 6112971
    Abstract: A brazing process is provided that addresses the braze joint failure problems encountered in some multi-nozzle combustion end covers. The brazing process embodying the invention provides optimal, predictable low cycle fatigue joint life in particular when brazing 304L stainless steel parts using Amdry 915 braze alloy. The invention was realized in particular in the combination of and application of tightly controlled vital variables of gap, braze alloy, braze peak temperature hold time, cooling (quench) rate, surface finish and braze media to optimal limits for the process parameters. The process provides robust/reliable design limits for braze joints experiencing stress during operation.
    Type: Grant
    Filed: May 12, 1999
    Date of Patent: September 5, 2000
    Assignee: General Electric Co.
    Inventors: Dean Henry Castaldo, Bernard Arthur Couture, Anne Elizabeth Kolman, David Robert Schumacher