Patents by Inventor Krishna Ramadurai

Krishna Ramadurai 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).

  • Patent number: 11970875
    Abstract: A system for manufacturing a tower structure of a wind turbine includes an additive printing device having a central frame structure with a platform and an arm member. The arm member is generally parallel to a longitudinal axis of the tower structure. The additive printing device also includes a plurality of robotic arms secured to the arm member of the central frame structure. Each of the robotic arms includes a printer head for additively printing one or more materials. The additive printing device further includes at least one nozzle configured for dispensing a cementitious material. Moreover, the system includes one or more molds additively printed via the additive printing device of a polymer material. As such, the mold(s) define inner and outer wall limits of the tower structure.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: April 30, 2024
    Assignee: GE Infrastructure Technology LLC
    Inventors: Norman Arnold Turnquist, James Robert Tobin, Krishna Ramadurai, Krishna Prashanth Anandan
  • Publication number: 20220049521
    Abstract: A system for manufacturing a tower structure of a wind turbine includes an additive printing device having a central frame structure with a platform and an arm member. The arm member is generally parallel to a longitudinal axis of the tower structure. The additive printing device also includes a plurality of robotic arms secured to the arm member of the central frame structure. Each of the robotic arms includes a printer head for additively printing one or more materials. The additive printing device further includes at least one nozzle configured for dispensing a cementitious material. Moreover, the system includes one or more molds additively printed via the additive printing device of a polymer material. As such, the mold(s) define inner and outer wall limits of the tower structure.
    Type: Application
    Filed: September 24, 2019
    Publication date: February 17, 2022
    Inventors: Norman Arnold Turnquist, James Robert Tobin, Krishna Ramadurai, Krishna Prashanth Anandan
  • Publication number: 20220034116
    Abstract: A method for manufacturing a tower structure of a wind turbine includes printing, via an additive printing device, the tower structure of the wind turbine of a cementitious material. During printing, the method includes embedding one or more reinforcement sensing elements at least partially within the cementitious material at one or more locations. Thus, the reinforcement sensing element(s) are configured for sensing structural health of the tower structure, sensing temperature of the cementitious material, heating to control cure time of the cementitious material, and/or reinforcing the cementitious material. In addition, the method includes curing the cementitious material so as to form the tower structure.
    Type: Application
    Filed: September 26, 2019
    Publication date: February 3, 2022
    Inventors: Norman Arnold Turnquist, Daniel Jason Erno, James Robert Tobin, Krishna Ramadurai, Gregory Edward Cooper, Krishna Prashanth Anandan, Pascal Meyer, Biao Fang, John P. Davis
  • Patent number: 8969838
    Abstract: A device is described herein which may comprise a chamber, a fluid line, a pressurized source material in the fluid line, a component restricting flow of the source material into the chamber, a sensor measuring flow of a fluid in the fluid line and providing a signal indicative thereof, and a pressure relief valve responsive to a signal to reduce a leak of source material into the chamber in the event of a failure of the component.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: March 3, 2015
    Assignee: ASML Netherlands B.V.
    Inventors: Georgiy O. Vaschenko, Krishna Ramadurai, Richard Charles Taddiken
  • Publication number: 20100258747
    Abstract: A device is described herein which may comprise a chamber, a fluid line, a pressurized source material in the fluid line, a component restricting flow of the source material into the chamber, a sensor measuring flow of a fluid in the fluid line and providing a signal indicative thereof, and a pressure relief valve responsive to a signal to reduce a leak of source material into the chamber in the event of a failure of the component.
    Type: Application
    Filed: July 23, 2009
    Publication date: October 14, 2010
    Applicant: CYMER, INC.
    Inventors: Georgiy O. Vaschenko, Krishna Ramadurai