Patents by Inventor Daniel Barak

Daniel Barak 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).

  • Seal anti-rotation
    Patent number: 11199104
    Abstract: A disclosed gas turbine engine includes a shroud block including a mounting slot, a blade outer air seal supported within the mounting slot and a seal disposed within the mounting slot providing a seal between the blade outer air seal and the mounting slot. An anti-rotation tab is attached to the shroud block within the mounting slot for constraining movement of the seal within the mounting slot.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: December 14, 2021
    Assignee: Raytheon Technologies Corporation
    Inventors: Daniel Barak, Joseph F. Englehart
  • Geometry optimized blade outer air seal for thermal loads
    Patent number: 10815812
    Abstract: A blade outer air seal (BOAS) is provided. The BOAS comprising: a seal body having a forward side, an aft side opposite the forward side, a radially inward side, and a radially outward side opposite the radially inward side; and a relief gap within the seal body to allow a portion of the radially inward side to expand into the relief gap when the seal body is heated.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: October 27, 2020
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Daniel Barak, Joseph F. Englehart
  • Alternative W-seal groove arrangement
    Patent number: 10533446
    Abstract: A blade outer air seal (BOAS) assembly includes a rotor blade configured to rotate about an axis. The BOAS assembly also includes a BOAS positioned radially outward from the rotor blade and having a forward-facing BOAS face. The BOAS assembly also includes a shroud block positioned radially outward from the BOAS, having an aft-facing shroud face, and being configured to support the BOAS. The BOAS assembly also includes a first bellows seal extending from the forward-facing BOAS face to the aft-facing shroud face and configured to reduce fluid leakage radially between the BOAS and the shroud block.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: January 14, 2020
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Daniel Barak, Joseph F. Englehart
  • GEOMETRY OPTIMIZED BLADE OUTER AIR SEAL FOR THERMAL LOADS
    Publication number: 20190032505
    Abstract: A blade outer air seal (BOAS) is provided. The BOAS comprising: a seal body having a forward side, an aft side opposite the forward side, a radially inward side, and a radially outward side opposite the radially inward side; and a relief gap within the seal body to allow a portion of the radially inward side to expand into the relief gap when the seal body is heated.
    Type: Application
    Filed: March 14, 2018
    Publication date: January 31, 2019
    Inventors: Daniel Barak, Joseph F. Englehart
  • SEAL ANTI-ROTATION
    Publication number: 20190024525
    Abstract: A disclosed gas turbine engine includes a shroud block including a mounting slot, a blade outer air seal supported within the mounting slot and a seal disposed within the mounting slot providing a seal between the blade outer air seal and the mounting slot. An anti-rotation tab is attached to the shroud block within the mounting slot for constraining movement of the seal within the mounting slot.
    Type: Application
    Filed: December 14, 2017
    Publication date: January 24, 2019
    Inventors: Daniel Barak, Joseph F. Englehart
  • ALTERNATIVE W-SEAL GROOVE ARRANGEMENT
    Publication number: 20180328214
    Abstract: A blade outer air seal (BOAS) assembly includes a rotor blade configured to rotate about an axis. The BOAS assembly also includes a BOAS positioned radially outward from the rotor blade and having a forward-facing BOAS face. The BOAS assembly also includes a shroud block positioned radially outward from the BOAS, having an aft-facing shroud face, and being configured to support the BOAS. The BOAS assembly also includes a first bellows seal extending from the forward-facing BOAS face to the aft-facing shroud face and configured to reduce fluid leakage radially between the BOAS and the shroud block.
    Type: Application
    Filed: June 14, 2017
    Publication date: November 15, 2018
    Applicant: UNiTED TECHNOLOGIES CORPORATION
    Inventors: Daniel Barak, Joseph F. Englehart