Patents by Inventor Grama Narasimhaprasad Praveen

Grama Narasimhaprasad Praveen 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).

  • Turbine blade fabrication
    Patent number: 8510947
    Abstract: A method includes joining an integral bulkhead and a blade shell to form a blade and separating the blade into two blade segments at a location including the integral bulkhead such that each blade segment comprises a portion of the integral bulkhead and a portion of the blade shell.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: August 20, 2013
    Assignee: General Electric Company
    Inventors: Bowden Kirkpatrick, Peggy Lynn Baehmann, Shu Ching Quek, Grama Narasimhaprasad Praveen, Youdong Zhou
  • Turbine blade and method of fabricating the same
    Patent number: 7891947
    Abstract: A turbine blade includes at least two blade segments. Each blade segment includes first and second shells joined together, a base region, at least one joint region including a mating face. Each of the first and second shells includes an outer skin, a base spar cap attached to an inner surface of the outer skin in the base region, a joint spar cap attached to the inner surface of the outer skin in the joint region and adjacent to at least a portion of the base spar cap. The joint spar cap includes holes in the mating face of the joint region. The turbine blade further includes fasteners within the holes for securing the at least two blade segments together.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: February 22, 2011
    Assignee: General Electric Company
    Inventors: Xianglei Chen, Peggy Lynn Baehmann, Wendy Wen-Ling Lin, Youdong Zhou, Shu Ching Quek, Grama Narasimhaprasad Praveen, Bowden Kirkpatrick, Robert Michael Zirin, Gang Qian
  • TURBINE BLADE AND METHOD OF FABRICATING THE SAME
    Publication number: 20100143148
    Abstract: A turbine blade includes at least two blade segments. Each blade segment includes first and second shells joined together, a base region, at least one joint region including a mating face. Each of the first and second shells includes an outer skin, a base spar cap attached to an inner surface of the outer skin in the base region, a joint spar cap attached to the inner surface of the outer skin in the joint region and adjacent to at least a portion of the base spar cap. The joint spar cap includes holes in the mating face of the joint region. The turbine blade further includes fasteners within the holes for securing the at least two blade segments together.
    Type: Application
    Filed: December 12, 2008
    Publication date: June 10, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Xianglei Chen, Peggy Lynn Baehmann, Wendy Wen-Ling Lin, Youdong Zhou, Shu Ching Quek, Grama Narasimhaprasad Praveen, Bowden Kirkpatrick, Robert Michael Zirin, Gang Qian
  • TURBINE BLADE FABRICATION
    Publication number: 20100122442
    Abstract: A method includes joining an integral bulkhead and a blade shell to form a blade and separating the blade into two blade segments at a location including the integral bulkhead such that each blade segment comprises a portion of the integral bulkhead and a portion of the blade shell.
    Type: Application
    Filed: November 14, 2008
    Publication date: May 20, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Bowden Kirkpatrick, Peggy Lynn Baehmann, Shu Ching Quek, Grama Narasimhaprasad Praveen, Youdong Zhou