Patents by Inventor David Glasspoole

David Glasspoole 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).

  • Gas turbine engine turbine impeller pressurization
    Patent number: 10072585
    Abstract: A cooling system for a gas turbine engine turbine section includes a rotor supporting a blade having a cooling passage. A disc is secured relative to the rotor and it forms a cavity between the rotor and the disc. A bleed air source is in fluid communication with the cavity. An impeller is arranged in the cavity. The impeller is configured to increase a fluid pressure within the cavity to drive bleed air from the bleed air source and thereby provide a pressurized cooling fluid to the cooling passage.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: September 11, 2018
    Assignee: United Technologies Corporation
    Inventors: John H. Mosley, James P. Chrisikos, John J. O'Connor, Charles C. Wu, David Glasspoole, Roger Gates
  • GAS TURBINE ENGINE TURBINE IMPELLER PRESSURIZATION
    Publication number: 20160003166
    Abstract: A cooling system for a gas turbine engine turbine section includes a rotor supporting a blade having a cooling passage. A disc is secured relative to the rotor and it forms a cavity between the rotor and the disc. A bleed air source is in fluid communication with the cavity. An impeller is arranged in the cavity. The impeller is configured to increase a fluid pressure within the cavity to drive bleed air from the bleed air source and thereby provide a pressurized cooling fluid to the cooling passage.
    Type: Application
    Filed: March 10, 2014
    Publication date: January 7, 2016
    Inventors: John H. Mosley, James P. Chrisikos, Roger Gates, John J. O'Connor, Charles C. Wu, David Glasspoole
  • Turbine rotor retaining system
    Patent number: 8979502
    Abstract: A rotor retaining system for a rotor assembly of a gas turbine engine includes a washer interlocking multiple retaining nuts to prevent relative rotation. The retaining nuts retain a rotor disc and a cover plate in position, respectively. A wire is provided to retain the washer in position and which may dampen vibration during engine operation.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: March 17, 2015
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: René Paquet, David Glasspoole
  • TURBINE ROTOR RETAINING SYSTEM
    Publication number: 20130156589
    Abstract: A rotor retaining system for a rotor assembly of a gas turbine engine includes a washer interlocking multiple retaining nuts to prevent relative rotation. The retaining nuts retain a rotor disc and a cover plate in position, respectively. A wire is provided to retain the washer in position and which may dampen vibration during engine operation.
    Type: Application
    Filed: December 15, 2011
    Publication date: June 20, 2013
    Applicant: PRATT & WHITNEY CANADA CORP.
    Inventors: René PAQUET, David GLASSPOOLE
  • Shroud leading edge cooling
    Patent number: 7246989
    Abstract: A cooling device includes a plurality of passages extending through outer platforms of turbine vane segments for directing cooling air in a choked flow condition towards a downstream turbine shroud.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: July 24, 2007
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: David Glasspoole, Ricardo Trindade
  • Vane attachment arrangement
    Patent number: 7238003
    Abstract: A simplified vane mounting arrangement by which a vane ring can be pre-assembled to an inner support ring before being installed in an outer casing.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: July 3, 2007
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Remy Synnott, Nicolas Grivas, Alan Juneau, David Glasspoole
  • Gas turbine gas path contour
    Patent number: 7179049
    Abstract: Gas flow is redirected by a feature disposed on a trailing edge of at least one segment of a peripheral gas path defining surface to improve alignment with a downstream portion of the gas path.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: February 20, 2007
    Assignee: Pratt & Whitney Canada Corp.
    Inventor: David Glasspoole
  • Gas turbine gas path contour
    Publication number: 20060127214
    Abstract: Gas flow is redirected by a feature disposed on a trailing edge of at least one segment of a peripheral gas path defining surface to improve alignment with a downstream portion of the gas path.
    Type: Application
    Filed: December 10, 2004
    Publication date: June 15, 2006
    Inventor: David Glasspoole
  • Shroud leading edge cooling
    Publication number: 20060123794
    Abstract: A cooling device includes a plurality of passages extending through outer platforms of turbine vane segments for directing cooling air in a choked flow condition towards a downstream turbine shroud.
    Type: Application
    Filed: December 10, 2004
    Publication date: June 15, 2006
    Inventors: David Glasspoole, Ricardo Trindade
  • Circumferential feather seal
    Publication number: 20060082074
    Abstract: A seal arrangement between a vane assembly and a static shroud assembly reduces gas path leakage and beneficially improves gas turbine performance.
    Type: Application
    Filed: October 18, 2004
    Publication date: April 20, 2006
    Inventors: Remy Synnott, David Glasspoole
  • Vane attachment arrangement
    Publication number: 20060045745
    Abstract: A simplified vane mounting arrangement by which a vane ring can be pre-assembled to an inner support ring before being installed in an outer casing.
    Type: Application
    Filed: August 24, 2004
    Publication date: March 2, 2006
    Inventors: Remy Synnott, Nicolas Grivas, Alan Juneau, David Glasspoole