Patents by Inventor David A. Helmick

David A. Helmick 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).

  • Method Of Manufacturing A Ferrous Alloy Article Using Powder Metallurgy Processing
    Publication number: 20180363105
    Abstract: A method of manufacturing a ferrous alloy article is disclosed and includes the steps of melting a ferrous alloy composition into a liquid, atomizing and solidifying the liquid into powder particles, removing oxygen from surfaces of the powder particles to reduce a bulk oxygen content to approximately ?20 ppm, and consolidating the powder particles into a monolithic article.
    Type: Application
    Filed: August 23, 2018
    Publication date: December 20, 2018
    Applicant: CRS Holdings Inc.
    Inventors: David E. Wert, Timothy R. Armstrong, David A. Helmick, Michael L. Schmidt
  • Method of manufacturing a ferrous alloy article using powder metallurgy processing
    Patent number: 10094007
    Abstract: A method of manufacturing a ferrous alloy article is disclosed and includes the steps of melting a ferrous alloy composition into a liquid, atomizing and solidifying of the liquid into powder particles, outgassing to remove oxygen from the surface of the powder particles, and consolidating the powder particles into a monolithic article.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: October 9, 2018
    Assignee: CRS Holdings Inc.
    Inventors: David E. Wert, Timothy R. Armstrong, David A. Helmick, Michael L. Schmidt
  • Method Of Manufacturing A Ferrous Alloy Article Using Powder Metallurgy Processing
    Publication number: 20150118095
    Abstract: A method of manufacturing a ferrous alloy article is disclosed and includes the steps of melting a ferrous alloy composition into a liquid, atomizing and solidifying of the liquid into powder particles, outgassing to remove oxygen from the surface of the powder particles, and consolidating the powder particles into a monolithic article.
    Type: Application
    Filed: May 20, 2014
    Publication date: April 30, 2015
    Applicant: CRS HOLDINGS INC.
    Inventors: David E. Wert, Timothy R. Armstrong, David A. Helmick, Michael L. Schmidt
  • Process for sulfidation-resistant coating system
    Patent number: 8273416
    Abstract: A coating system and process for protecting component surfaces exposed to sulfur-containing environments at elevated temperatures. The coating system includes a sulfidation-resistant overlay coating that is predominantly niobium or molybdenum.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: September 25, 2012
    Assignee: General Electric Company
    Inventors: David A. Helmick, Yuk-Chiu Lau, David Vincent Bucci
  • SULFIDATION-RESISTANT COATING SYSTEM AND PROCESS THEREFOR
    Publication number: 20110300303
    Abstract: A coating system and process for protecting component surfaces exposed to sulfur-containing environments at elevated temperatures. The coating system includes a sulfidation-resistant overlay coating that is predominantly niobium or molybdenum.
    Type: Application
    Filed: August 15, 2011
    Publication date: December 8, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: David A. Helmick, Yuk-Chiu Lau, David Vincent Bucci
  • Sulfidation-resistant coating system
    Patent number: 8067098
    Abstract: A coating system and process for protecting component surfaces exposed to sulfur-containing environments at elevated temperatures. The coating system includes a sulfidation-resistant overlay coating that is predominantly niobium or molybdenum.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: November 29, 2011
    Assignee: General Electric Company
    Inventors: David A. Helmick, Yuk-Chiu Lau, David Vincent Bucci
  • THERMAL BARRIER COATING REMOVAL VIA SHOCKWAVE STRESSES
    Publication number: 20100326971
    Abstract: A method for removing a thermal barrier coating on a surface of a machine component, the method comprising the steps of arranging plural shockwave generators so as to focus shockwave energy on a target area of the machine component; and subjecting the target area of the thermal barrier coating to plural focuses shockwaves such that the thermal barrier coating is caused to delaminate and can be removed from the machine component.
    Type: Application
    Filed: June 30, 2009
    Publication date: December 30, 2010
    Applicant: General Electric Company
    Inventors: David A. HELMICK, David Leslie Burin
  • SULFIDATION-RESISTANT COATING SYSTEM AND PROCESS THEREFOR
    Publication number: 20100247927
    Abstract: A coating system and process for protecting component surfaces exposed to sulfur-containing environments at elevated temperatures. The coating system includes a sulfidation-resistant overlay coating that is predominantly niobium or molybdenum.
    Type: Application
    Filed: March 26, 2009
    Publication date: September 30, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: David A. Helmick, Yuk-Chiu Lau, David Vincent Bucci
  • METHOD AND SYSTEM FOR REMOVING THERMAL BARRIER COATING
    Publication number: 20100224602
    Abstract: A method and system for removing a thermal barrier coating on a turbine component is provided. The method includes the steps of selecting at least one turbine component having a thermal barrier coating, and subjecting at least a portion of the thermal barrier coating to a shockwave. The shockwave forms cracks in the thermal barrier coating, such that the substrate of the turbine component is not substantially deformed.
    Type: Application
    Filed: March 6, 2009
    Publication date: September 9, 2010
    Inventors: David A. Helmick, David L. Burin
  • Compressor blade leading edge shim and related method
    Publication number: 20100028160
    Abstract: A method of improving an erosion resistance at the leading edge of a compressor blade includes: a) cleaning a leading edge portion of the compressor blade airfoil; and b) attaching one or more erosion or corrosion-resistant shims to the leading edge portion.
    Type: Application
    Filed: July 31, 2008
    Publication date: February 4, 2010
    Applicant: General Electric Company
    Inventors: Jon C. Schaeffer, Surinder S. Pabla, David A. Helmick, Jeffrey Roberts
  • THERMAL BARRIER COATINGS AND METHODS OF PRODUCING SAME
    Publication number: 20100028711
    Abstract: A thermal insulating ceramic layer for use on metal alloy components exposed to hostile thermal and chemical environment, such as a gas turbine. The thermal barrier coating may include cracks made by a series of steps, including subjecting at least a portion of the thermal barrier coating to a shockwave such that microcracks are formed in the thermal barrier coating without also substantially deforming the substrate.
    Type: Application
    Filed: July 29, 2008
    Publication date: February 4, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: David A. Helmick, David Leslie Burin
  • Process for coating articles and articles made therefrom
    Patent number: 7601431
    Abstract: In one embodiment, a coated turbine article comprising a uniform enhanced coating on at least a portion of the turbine article, wherein the enhanced coating comprises a coating material and a structural enhancer, wherein the structural enhancer is selected from the group consisting of oxide, carbide, nitride, intermetallic material, and combinations comprising at least one of the foregoing, wherein the structural enhancer has an average particle size, as measured along a major axis, of about 0.01 ?m to about 100 ?m.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: October 13, 2009
    Assignee: General Electric Company
    Inventors: Vinod Kumar Pareek, David A. Helmick