Patents by Inventor Shawn J. Pollock

Shawn J. Pollock 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).

  • Patent number: 9574499
    Abstract: A valve and valve assembly having a hybrid valve member are provided. The valve includes a housing, with an inlet, a primary outlet, and a secondary outlet. The hybrid valve member is rotatably positioned within the housing. The hybrid valve member has a fully closed position wherein the hybrid valve member prevents flow between the inlet and the primary outlet and prevents flow between the inlet and the secondary outlet. The hybrid valve member includes a planar portion and a hemispherical portion on a first side thereof. The planar portion faces the inlet in the fully closed position and the hemispherical portion faces the secondary outlet in the fully closed position.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: February 21, 2017
    Assignee: Woodward, Inc.
    Inventors: Shawn J. Pollock, Aaron W. Hrdlichka, Brian E. Hoemke, Harold W. Williams
  • Publication number: 20160333795
    Abstract: A valve and valve assembly having a hybrid valve member are provided. The valve includes a housing, with an inlet, a primary outlet, and a secondary outlet. The hybrid valve member is rotatably positioned within the housing. The hybrid valve member has a fully closed position wherein the hybrid valve member prevents flow between the inlet and the primary outlet and prevents flow between the inlet and the secondary outlet. The hybrid valve member includes a planar portion and a hemispherical portion on a first side thereof. The planar portion faces the inlet in the fully closed position and the hemispherical portion faces the secondary outlet in the fully closed position.
    Type: Application
    Filed: May 13, 2015
    Publication date: November 17, 2016
    Applicant: WOODWARD, INC.
    Inventors: Shawn J. Pollock, Aaron W. Hrdlichka, Brian E. Hoemke, Harold W. Williams
  • Patent number: 6997673
    Abstract: A turbine shroud assembly includes forward and aft hangers, an axisymmetric plenum assembly, ceramic shroud segments, ceramic spacers, and forward and aft rope seals. The plenum assembly supplies impingement cooling to the shroud and the hangers. The impingement cooling to the forward and aft hangers is controlled independently to improve blade tip clearance. The rope seals are radially inward from the hangers and reduce cooling flow leakage. The turbine shroud assembly can operate in a higher temperature environment using less cooling flow than the prior art.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: February 14, 2006
    Assignee: Honeywell International, Inc.
    Inventors: Mark C. Morris, Steve H. Halfmann, Craig A. Wilson, Shawn J. Pollock, Carl A. Larson