Patents by Inventor Melvin Howard Wilkins

Melvin Howard Wilkins 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).

  • Publication number: 20130230406
    Abstract: Gas turbine engine turbine blade includes a silicon-modified aluminide coating on at least an under platform region formed from a slurry composition being substantially free of hexavalent chromium. The silicon-modified aluminide coating provides oxidation resistance comparable to PtAl coatings without adding a weight penalty.
    Type: Application
    Filed: December 27, 2007
    Publication date: September 5, 2013
    Inventors: Melvin Howard Wilkins, Brent Ross Tholke, Lawrence Bernard Kool, Warren Davis Grossklaus, JR.
  • Patent number: 8516674
    Abstract: A method for bonding airfoil sections includes aligning upper and stub airfoil sections having upper airfoil pressure and suction sides and stub airfoil pressure and suction sides respectively, pressing together upper and stub airfoil cross sections at upper and stub airfoil distal ends of the upper and stub airfoil sections respectively, and then resistance welding, preferably solid state resistance welding, the upper and stub airfoil sections together along the upper and stub airfoil cross sections by passing electrical current across the upper and stub airfoil cross sections. The upper and stub airfoil sections may be clamped between pressure and suction side upper airfoil electrodes and between the stub airfoil pressure and suction sides respectively. The method may be performed while the stub airfoil section is attached to an airfoil carrier such as a rotor disk rim, a gas turbine engine drum, or a gas turbine engine blade platform.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: August 27, 2013
    Assignee: General Electric Company
    Inventors: Gary Edward Trewiler, Stephen Joseph Ferrigno, Melvin Howard Wilkins, Timothy Joseph Trapp, Matthew Stewart, Gregory Christopher Firestone
  • Publication number: 20110005075
    Abstract: A method for bonding airfoil sections includes aligning upper and stub airfoil sections having upper airfoil pressure and suction sides and stub airfoil pressure and suction sides respectively, pressing together upper and stub airfoil cross sections at upper and stub airfoil distal ends of the upper and stub airfoil sections respectively, and then resistance welding, preferably solid state resistance welding, the upper and stub airfoil sections together along the upper and stub airfoil cross sections by passing electrical current across the upper and stub airfoil cross sections. The upper and stub airfoil sections may be clamped between pressure and suction side upper airfoil electrodes and between the stub airfoil pressure and suction sides respectively. The method may be performed while the stub airfoil section is attached to an airfoil carrier such as a rotor disk rim, a gas turbine engine drum, or a gas turbine engine blade platform.
    Type: Application
    Filed: June 30, 2010
    Publication date: January 13, 2011
    Inventors: Gary Edward Trewiler, Stephen Joseph Ferrigno, Melvin Howard Wilkins, Timothy Joseph Trapp, Matthew Stewart, Gregory Christopher Firestone
  • Patent number: 7749569
    Abstract: Formation of a silicon-modified aluminide coating on the under platform region of a superalloy gas turbine engine blade for improved corrosion and oxidation resistance. The coating is formed from a slurry composition including colloidal silica and aluminum-based powder and is substantially free of hexavalent chromium. The coating provides aluminum and silicon content in the outer 25% of a coating thickness of at least about 20% by weight aluminum and about 3% by weight silicon.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: July 6, 2010
    Assignee: General Electric Company
    Inventors: Melvin Howard Wilkins, Lawrence Bernard Kool, Warren Davis Grossklaus, Jr., Brent Ross Tholke
  • Publication number: 20090169750
    Abstract: Formation of a silicon-modified aluminide coating on the under platform region of a superalloy gas turbine engine blade for improved corrosion and oxidation resistance. The coating is formed from a slurry composition including colloidal silica and aluminum-based powder and is substantially free of hexavalent chromium. The coating provides aluminum and silicon content in the outer 25% of a coating thickness of at least about 20% by weight aluminum and about 3% by weight silicon.
    Type: Application
    Filed: December 27, 2007
    Publication date: July 2, 2009
    Inventors: Melvin Howard Wilkins, Lawrence Bernard Kool, Warren Davis Grossklaus, JR., Brent Ross Tholke
  • Patent number: 7346999
    Abstract: Methods and apparatus for inspecting a component are provided. The method includes receiving a plurality of data points that define a shape of the component, fitting the received data points to a curve that defines a predetermined model shape, and comparing the received data points to the curve defining the predetermined model shape to determine a break radius of the component.
    Type: Grant
    Filed: January 18, 2005
    Date of Patent: March 25, 2008
    Assignee: General Electric Company
    Inventors: Douglas Edward Ingram, Francis Howard Little, Melvin Howard Wilkins