Patents by Inventor Margaret Jones Schotsch

Margaret Jones Schotsch 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).

  • Airfoil for nozzle and a method of forming the machined contoured passage therein
    Patent number: 8246306
    Abstract: A nozzle in which an airfoil includes a pressure surface and a suction surface that join at substantially opposing chordal ends of the airfoil to form a leading edge of the airfoil and a trailing edge of the airfoil. A trailing edge passage is defined through the airfoil through which coolant flows. The trailing edge passage is proximate to the trailing edge of the airfoil and has a contoured shape that conforms to that of the trailing edge.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: August 21, 2012
    Assignee: General Electric Company
    Inventors: Margaret Jones Schotsch, Randall Gill, Peter Stevens, David Leo, John Seymour
  • AIRFOIL FOR NOZZLE AND A METHOD OF FORMING THE MACHINED CONTOURED PASSAGE THEREIN
    Publication number: 20090252603
    Abstract: A nozzle in which an airfoil includes a pressure surface and a suction surface that join at substantially opposing chordal ends of the airfoil to form a leading edge of the airfoil and a trailing edge of the airfoil. A trailing edge passage is defined through the airfoil through which coolant flows. The trailing edge passage is proximate to the trailing edge of the airfoil and has a contoured shape that conforms to that of the trailing edge.
    Type: Application
    Filed: April 3, 2008
    Publication date: October 8, 2009
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Margaret Jones Schotsch, Randall Gill, Peter Stevens, David Leo, John Seymour
  • Turbine nozzle stage having thermocouple guide tube
    Patent number: 6431824
    Abstract: A guide tube is fixed adjacent opposite ends in outer and inner covers of a nozzle stage segment. The guide tube is serpentine in shape between the outer and inner covers and extends through a nozzle vane. An insert is disposed in the nozzle vane and has apertures to accommodate serpentine portions of the guide tube. Cooling steam is also supplied through chambers of the insert on opposite sides of a central insert chamber containing the guide tube. The opposite ends of the guide tube are fixed to sleeves, in turn fixed to the outer and inner covers.
    Type: Grant
    Filed: October 1, 1999
    Date of Patent: August 13, 2002
    Assignee: General Electric Company
    Inventors: Margaret Jones Schotsch, Francis Lawrence Kirkpatrick, Eric Michael Lapine
  • Post-cast EDM method for reducing the thickness of a turbine nozzle wall
    Patent number: 6388223
    Abstract: A post-cast EDM process is used to remove material from the interior surface of a nozzle vane cavity of a turbine. A thin electrode is passed through the cavity between opposite ends of the nozzle vane and displaced along the interior nozzle wall to remove the material along a predetermined path, thus reducing the thickness of the wall between the cavity and the external surface of the nozzle. In another form, an EDM process employing a profile as an electrode is disposed in the cavity and advanced against the wall to remove material from the wall until the final wall thickness is achieved, with the interior wall surface being complementary to the profile surface.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: May 14, 2002
    Assignee: General Electric Company
    Inventors: Raymond Joseph Jones, Parvangada Ganapathy Bojappa, Francis Lawrence Kirkpatrick, Margaret Jones Schotsch, Rajiv Rajan, Bin Wei
  • TURBINE NOZZLE STAGE HAVING THERMOCOUPLE GUIDE TUBE
    Publication number: 20010051095
    Abstract: A guide tube is fixed adjacent opposite ends in outer and inner covers of a nozzle stage segment. The guide tube is serpentine in shape between the outer and inner covers and extends through a nozzle vane. An insert is disposed in the nozzle vane and has apertures to accommodate serpentine portions of the guide tube. Cooling steam is also supplied through chambers of the insert on opposite sides of a central insert chamber containing the guide tube. The opposite ends of the guide tube are fixed to sleeves, in turn fixed to the outer and inner covers.
    Type: Application
    Filed: October 1, 1999
    Publication date: December 13, 2001
    Inventors: MARGARET JONES SCHOTSCH, FRANCIS LAWRENCE KIRKPATRICK, ERIC MICHAEL LAPINE
  • Post-cast EDM method for reducing the thickness of a turbine nozzle wall
    Publication number: 20010002667
    Abstract: A post-cast EDM process is used to remove material from the interior surface of a nozzle vane cavity of a turbine. A thin electrode is passed through the cavity between opposite ends of the nozzle vane and displaced along the interior nozzle wall to remove the material along a predetermined path, thus reducing the thickness of the wall between the cavity and the external surface of the nozzle. In another form, an EDM process employing a profile as an electrode is disposed in the cavity and advanced against the wall to remove material from the wall until the final wall thickness is achieved, with the interior wall surface being complementary to the profile surface.
    Type: Application
    Filed: December 21, 2000
    Publication date: June 7, 2001
    Inventors: Raymond Joseph Jones, Parvangada Ganapathy Bojappa, Francis Lawrence Kirkpatrick, Margaret Jones Schotsch, Rajiv Rajan, Bin Wei