Patents by Inventor EVAN ANDREW SEWALL

EVAN ANDREW SEWALL 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).

  • Publication number: 20120308399
    Abstract: A turbine vane or blade segment includes at least one airfoil extending radially outwardly from a radially inner band. The radially inner band is formed with substantially axially-extending side edges, and the at least one airfoil is formed with a leading edge, a trailing edge, a pressure side, a suction side, and an internal cooling plenum. The pressure side faces one of the substantially axially-extending side edges and the leading edge is located proximate to that one edge. A plurality of cooling passages are formed in the radially inner band in fluid communication with the internal plenum and exiting the inner band via a plurality of exit holes in the one of the substantially axially-extending side edges.
    Type: Application
    Filed: June 2, 2011
    Publication date: December 6, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Evan Andrew SEWALL, James William VEHR, Frederic Woodrow ROBERTS, JR.
  • Publication number: 20100284800
    Abstract: A turbine nozzle segment includes an outer band portion, an inner band portion, and at least one nozzle vane extending between the band portions. A cooling plenum is defined in a mating side face of at least one of the band portions and extends transversely at least partially through the respective band portion. First and second cooling passages extend from the cooling plenum to respective first and second cooling chambers.
    Type: Application
    Filed: May 11, 2009
    Publication date: November 11, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: EVAN ANDREW SEWALL, DAVID RICHARD JOHNS, GARY MICHAEL ITZEL