Patents by Inventor Joel T. Dawson

Joel T. Dawson 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).

  • Imparting high-temperature wear resistance to turbine blade Z-notches
    Patent number: 10221702
    Abstract: A method of imparting wear-resistance to a contact face of a turbine blade Z-notch comprising applying a flexible cladding sheet comprising a Co-based cladding alloy and an organic binder to the contact face of the Z-notch, heating the turbine blade Z-notch with flexible cladding sheet thereon to volatilize the organic binder and remove it from the cladding sheet, and further heating the turbine blade Z-notch with flexible cladding sheet thereon to sinter the cladding sheet by liquid phase sintering, thereby cladding the cladding sheet to the contact face to produce a wear-resistant layer thereon.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: March 5, 2019
    Assignee: KENNAMETAL INC.
    Inventors: Joel T. Dawson, Danie DeWet, Qingjun Zheng
  • IMPARTING HIGH-TEMPERATURE WEAR RESISTANCE TO TURBINE BLADE Z-NOTCHES
    Publication number: 20160245099
    Abstract: A method of imparting wear-resistance to a contact face of a turbine blade Z-notch comprising applying a flexible cladding sheet comprising a Co-based cladding alloy and an organic binder to the contact face of the Z-notch, heating the turbine blade Z-notch with flexible cladding sheet thereon to volatilize the organic binder and remove it from the cladding sheet, and further heating the turbine blade Z-notch with flexible cladding sheet thereon to sinter the cladding sheet by liquid phase sintering, thereby cladding the cladding sheet to the contact face to produce a wear-resistant layer thereon.
    Type: Application
    Filed: February 23, 2015
    Publication date: August 25, 2016
    Applicant: KENNAMETAL INC.
    Inventors: Joel T. Dawson, Danie DeWet, Qingjun Zheng