Patents by Inventor Patricia S. A. Bezerra

Patricia S. A. Bezerra 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).

  • Heat treatment of weld repaired gas turbine engine components
    Patent number: 6531005
    Abstract: An article, made of a material such as a iron-nickel-base alloy, is weld repaired, and then heat treated. The heat treatment includes heating the weld-repaired portion to a first hold temperature of at least about 1775 degrees Fahrenheit, cooling the weld-repaired portion to a temperature of 1025 degrees Fahrenheit or less, heating the weld-repaired portion at a rate of at least about 10 degrees Fahrenheit per minute or greater, to a second hold temperature of at least about 1525 degrees Fahrenheit, cooling the weld-repaired portion to a third hold temperature of about 1425 degrees Fahrenheit or less, and cooling the weld-repaired portion to a fourth hold temperature of about 1225 degrees Fahrenheit or less.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: March 11, 2003
    Assignee: General Electric Co.
    Inventors: Patricia S. A. Bezerra, Thomas J. Kelly