Patents by Inventor Kartik Shanker

Kartik Shanker 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).

  • WEAR RESISTANT CERAMIC COMPOSITE COATINGS AND PROCESS FOR PRODUCTION THEREOF
    Publication number: 20090130324
    Abstract: A binder-free ceramic feedstock composition for thermal spraying on a surface of an article is provided. The composition comprises: an oxide ceramic powder and a boride and/or carbide ceramic powder. The boride and/or carbide ceramic powders are comprised of micron-sized particles, and the volume content of the oxide ceramic powder is in the range of about 1 to about 85 percent. A method for preparing the binder-free ceramic feedstock and a coated article by a thermal spraying process are also provided.
    Type: Application
    Filed: April 20, 2006
    Publication date: May 21, 2009
    Inventors: Kartik Shanker, Andrea Grazyna Kraj
  • Treatment apparatus and method of treating surfaces
    Publication number: 20070172689
    Abstract: A treatment apparatus includes a vacuum chamber to receive a backfill gas, a support to receive a work piece, a filament located within the vacuum chamber, and an anode located within the vacuum chamber. The support is located within the vacuum chamber.
    Type: Application
    Filed: April 13, 2006
    Publication date: July 26, 2007
    Applicant: Standard Aero (San Antonio), Inc.
    Inventors: Robert Hoskin, Kartik Shanker
  • Multilayer thermal barrier coatings
    Patent number: 6794059
    Abstract: The present invention relates to a thin impermeable top coat on a thermal barrier coating for a metal part, such as a turbine blade, wherein the composite thin top coat is porous, inert, non-sacrificial, less permeable ceramic layer that eliminates the infiltration of environmental contaminants into the thermal barrier coating during operation of the metal part, thereby extending the life of the underlying thermal barrier coating and metal part thereunder.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: September 21, 2004
    Assignee: Standard Aero Limited
    Inventor: Kartik Shanker
  • Multilayer thermal barrier coatings
    Publication number: 20030138659
    Abstract: The present invention relates to a thin impermeable top coat on a thermal barrier coating for a metal part, such as a turbine blade, wherein the composite thin top coat is porous, inert, no-sacrificial, less permeable ceramic layer that eliminates the infiltration of environmental contaminants into the thermal barrier coating during operation of the metal part, thereby extending the life of the underlying thermal barrier coating and metal part therunder.
    Type: Application
    Filed: October 24, 2002
    Publication date: July 24, 2003
    Inventor: Kartik Shanker
  • Tantalum carbide composite materials
    Patent number: 5196273
    Abstract: A tantalum carbide composite material comprises a tantalum carbide preform infiltrated with a low melting temperature metal selected from aluminum, copper, various alloys of either aluminum or copper, gold and silver.
    Type: Grant
    Filed: May 13, 1991
    Date of Patent: March 23, 1993
    Assignee: Noranda Inc.
    Inventors: Peter Tsantrizos, Lakis T. Mavropoulos, Kartik Shanker, Robin A. L. Drew, Bruce Henshaw, Raynald Lachance