Patents by Inventor David J. Avery

David J. Avery 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).

  • Flared springs for bearing assemblies
    Patent number: 11761484
    Abstract: A bearing assembly includes a bearing defining a bearing bore therethrough with a plurality of spring bores circumferentially distributed around the bearing bore. A respective spring is seated in each of the spring bores. Each spring is has a flared end that is larger in diameter than a main section of the spring. The flared end of each spring engages its respective spring bore.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: September 19, 2023
    Assignee: Hamilton Sundstrand Corporation
    Inventor: David J. Avery
  • FLARED SPRINGS FOR BEARING ASSEMBLIES
    Publication number: 20230175550
    Abstract: A bearing assembly includes a bearing defining a bearing bore therethrough with a plurality of spring bores circumferentially distributed around the bearing bore. A respective spring is seated in each of the spring bores. Each spring is has a flared end that is larger in diameter than a main section of the spring. The flared end of each spring engages its respective spring bore.
    Type: Application
    Filed: December 6, 2021
    Publication date: June 8, 2023
    Applicant: Hamilton Sundstrand Corporation
    Inventor: David J. Avery
  • Carbon seal O-ring cavity sizing
    Patent number: 9869391
    Abstract: A carbon seal assembly includes a carbon seal element disposed about a central axis and that extends between a first end and a second end. The carbon seal element includes an inner step surface at an axial distance H1 with regard to the first end. An o-ring is adjacent to the inner step surface. The o-ring includes a cross-section diameter D2 such that a ratio H1/D2 is between 1.60-1.73.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: January 16, 2018
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Paul T. Litis, David J. Avery, Gregory P. Smith, John R. Gunn, David L. Kurtz, IV, Kevin Brut
  • CARBON SEAL O-RING CAVITY SIZING
    Publication number: 20130200570
    Abstract: A carbon seal assembly includes a carbon seal element disposed about a central axis and that extends between a first end and a second end. The carbon seal element includes an inner step surface at an axial distance H1 with regard to the first end. An o-ring is adjacent to the inner step surface. The o-ring includes a cross-section diameter D2 such that a ratio H1/D2 is between 1.60-1.73.
    Type: Application
    Filed: August 3, 2012
    Publication date: August 8, 2013
    Inventors: Paul T. Litis, David J. Avery, Gregory P. Smith, John Gunn, David L. Kurtz, Kevin Brut