Patents by Inventor Stanley Keysa

Stanley Keysa 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).

  • Cooled duct for gas turbine engine
    Patent number: 7631481
    Abstract: A cooled exhaust duct for use in gas turbine engines is provided. The cooled exhaust duct includes an axial centerline, a circumference, an annulus, and a plurality of radially expandable bands. The annulus is disposed between a first wall and a second wall, and extends along the axial centerline. The first wall is disposed radially inside of the second wall. Each of the plurality of radially expandable bands extends circumferentially within the annulus. The bands are axially spaced apart from one another. Each band includes a first portion attached to the first wall, a second portion attached to the second wall and an intermediate portion connected to the first and second portions. The bands create circumferentially extending compartments that inhibit axial travel of the cooling air within the annulus.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: December 15, 2009
    Assignee: United Technologies Corporation
    Inventors: Curtis C Cowan, Jorge I. Farah, Debora F. Kehret, Stanley Keysa, Jeffrey R. Lavin, Michael Murphy, Stephen A. Paul, Richard Scott
  • Cooled duct for gas turbine engine
    Publication number: 20060112676
    Abstract: A cooled exhaust duct for use in gas turbine engines is provided. The cooled exhaust duct includes an axial centerline, a circumference, an annulus, and a plurality of radially expandable bands. The annulus is disposed between a first wall and a second wall, and extends along the axial centerline. The first wall is disposed radially inside of the second wall. Each of the plurality of radially expandable bands extends circumferentially within the annulus. The bands are axially spaced apart from one another. Each band includes a first portion attached to the first wall, a second portion attached to the second wall and an intermediate portion connected to the first and second portions. The bands create circumferentially extending compartments that inhibit axial travel of the cooling air within the annulus.
    Type: Application
    Filed: December 1, 2004
    Publication date: June 1, 2006
    Applicant: Uninted Technologies Corporation
    Inventors: Curtis Cowan, Jorge Farah, Debora Kehret, Stanley Keysa, Jeffrey Lavin, Michael Murphy, Stephen Paul, Richard Scott