Patents by Inventor Ruthann Mercadante

Ruthann Mercadante 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 turbine airfoil
    Patent number: 7018176
    Abstract: According to the present invention, a hollow airfoil is provided that comprises a leading edge wall portion, a plurality of cavities, one or more crossover ribs, a plurality of cooling apertures, and a plurality of impingement ribs. The cavities are disposed adjacent the leading edge wall portion, between the leading edge wall portion and a first rib. The crossover ribs extend between the leading edge wall portion and the first rib, and at least one crossover rib is disposed between a pair of the cavities. The cooling apertures are disposed in the leading edge wall portion, providing a passage through which cooling air can exit the cavities. The impingement apertures are disposed in the first rib, providing a passage through which cooling air can enter the cavities. At least one of the impingement apertures is contiguous with one of the crossover ribs.
    Type: Grant
    Filed: May 6, 2004
    Date of Patent: March 28, 2006
    Assignee: United Technologies Corporation
    Inventors: Dominic J. Mongillo, Shawn J. Gregg, Ruthann Mercadante
  • Cooled turbine airfoil
    Publication number: 20050249583
    Abstract: According to the present invention, a hollow airfoil is provided that comprises a leading edge wall portion, a plurality of cavities, one or more crossover ribs, a plurality of cooling apertures, and a plurality of impingement ribs. The cavities are disposed adjacent the leading edge wall portion, between the leading edge wall portion and a first rib. The crossover ribs extend between the leading edge wall portion and the first rib, and at least one crossover rib is disposed between a pair of the cavities. The cooling apertures are disposed in the leading edge wall portion, providing a passage through which cooling air can exit the cavities. The impingement apertures are disposed in the first rib, providing a passage through which cooling air can enter the cavities. At least one of the impingement apertures is contiguous with one of the crossover ribs.
    Type: Application
    Filed: May 6, 2004
    Publication date: November 10, 2005
    Applicant: United Technologies Corporation
    Inventors: Dominic Mongillo, Shawn Gregg, Ruthann Mercadante