Patents by Inventor Lonnie Ray Chadwell

Lonnie Ray Chadwell 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).

  • METHODS AND APPARATUS FOR MAINTAINING ROTOR ASSEMBLY TIP CLEARANCES
    Publication number: 20020136631
    Abstract: A gas turbine engine including an active clearance control system that facilitates extending a useful life of a rotor assembly in a cost effective and reliable manner is described. The engine includes at least one rotor assembly and an engine casing that extends circumferentially around the rotor assembly, such that a tip clearance is defined between the rotor assembly and the engine casing. The clearance control system includes a plurality of panels that couple to extend circumferentially around the engine. Each clearance control system panel includes a circumferential feed duct that is formed integrally with the panel.
    Type: Application
    Filed: March 23, 2001
    Publication date: September 26, 2002
    Inventors: Scott Richard Zearbaugh, Steven Louis Brickner, James Warren Hackler, Lonnie Ray Chadwell
  • Methods and apparatus for maintaining rotor assembly tip clearances
    Patent number: 6454529
    Abstract: A gas turbine engine including an active clearance control system that facilitates extending a useful life of a rotor assembly in a cost effective and reliable manner is described. The engine includes at least one rotor assembly and an engine casing that extends circumferentially around the rotor assembly, such that a tip clearance is defined between the rotor assembly and the engine casing. The clearance control system includes a plurality of panels that couple to extend circumferentially around the engine. Each clearance control system panel includes a circumferential feed duct that is formed integrally with the panel.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: September 24, 2002
    Assignee: General Electric Company
    Inventors: Scott Richard Zearbaugh, Steven Louis Brickner, James Warren Hackler, Lonnie Ray Chadwell