Patents by Inventor David J. Dietz

David J. Dietz 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).

  • Method for preparing and ultrasonically testing a thermal-spray coated article
    Patent number: 7341758
    Abstract: An article having a thermal-spray coating thereon is prepared by thermally spraying a coating material onto a surface of a substrate article. The coated article is nondestructively tested by directing a transmitted ultrasonic signal into the coated article, receiving a received ultrasonic signal from the coated article, and evaluating a near-bondline region of the coated article located adjacent to the surface of the article using the received ultrasonic signal.
    Type: Grant
    Filed: April 24, 2003
    Date of Patent: March 11, 2008
    Assignee: General Electric Company
    Inventors: Matthew Stewart, Thomas J. Tomlinson, David J. Dietz, Patsy Augustine Ruzzo
  • METHOD FOR PREPARING AND ULTRASONICALLY TESTING A THERMAL-SPRAY COATED ARTICLE
    Publication number: 20080038477
    Abstract: An article having a thermal-spray coating thereon is prepared by thermally spraying a coating material onto a surface of a substrate article. The coated article is nondestructively tested by directing a transmitted ultrasonic signal into the coated article, receiving a received ultrasonic signal from the coated article, and evaluating a near-bondline region of the coated article located adjacent to the surface of the article using the received ultrasonic signal.
    Type: Application
    Filed: April 24, 2003
    Publication date: February 14, 2008
    Inventors: Matthew Stewart, Thomas J. Tomlinson, David J. Dietz, Patsy Augustine Ruzzo
  • Low windage corrugated seal facing strip
    Patent number: 5096376
    Abstract: An improved seal design is provided for use in a gas turbine engine. A corrugated facing strip, with a reduced corrugation height, is attached to the exposed end faces of a seal land to reduce windage losses at the exposed end faces. The corrugated facing strip simplifies construction of the seal land and provides a low windage loss surface at seal end faces.
    Type: Grant
    Filed: August 29, 1990
    Date of Patent: March 17, 1992
    Assignee: General Electric Company
    Inventors: Harvey W. Mason, Chris B. Jiomacas, David J. Dietz