Patents by Inventor Rajendra Machukar KELKAR

Rajendra Machukar KELKAR 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).

  • LAYERED MANUFACTURING OF SINGLE CRYSTAL ALLOY COMPONENTS
    Publication number: 20200298341
    Abstract: A method of making a component includes: depositing a metallic powder on a workplane; directing a beam from a directed energy source to fuse the powder in a pattern corresponding to a cross-sectional layer of the component; repeating in a cycle the steps of depositing and fusing to build up the component in a layer-by layer fashion; and during the cycle of depositing and melting, using an external heat control apparatus separate from the directed energy source to maintain a predetermined temperature profile of the component, such that the resulting component has a directionally-solidified or single-crystal microstructure.
    Type: Application
    Filed: February 24, 2020
    Publication date: September 24, 2020
    Inventors: Todd Jay Rockstroh, Michael Francis Xavier Gigliotti, William Thomas Carter, David Henry Abbott, Rajendra Machukar Kelkar
  • Layered manufacturing of single crystal alloy components
    Patent number: 10569362
    Abstract: A method of making a component includes depositing a metallic powder on a workplane; directing a beam from a directed energy source to fuse the powder in a pattern corresponding to a cross-sectional layer of the component; repeating in a cycle the steps of depositing and fusing to build up the component in a layer-by layer fashion; and during the cycle of depositing and melting, using an external heat control apparatus separate from the directed energy source to maintain a predetermined temperature profile of the component, such that the resulting component has a directionally-solidified or single-crystal microstructure.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: February 25, 2020
    Assignee: General Electric Company
    Inventors: Todd Jay Rockstroh, Michael Francis Xavier Gigliotti, William Thomas Carter, David Henry Abbott, Rajendra Machukar Kelkar
  • LAYERED MANUFACTURING OF SINGLE CRYSTAL ALLOY COMPONENTS
    Publication number: 20160288266
    Abstract: A method of making a component includes depositing a metallic powder on a workplane; directing a beam from a directed energy source to fuse the powder in a pattern corresponding to a cross-sectional layer of the component; repeating in a cycle the steps of depositing and fusing to build up the component in a layer-by layer fashion; and during the cycle of depositing and melting, using an external heat control apparatus separate from the directed energy source to maintain a predetermined temperature profile of the component, such that the resulting component has a directionally-solidified or single-crystal microstructure.
    Type: Application
    Filed: November 12, 2014
    Publication date: October 6, 2016
    Inventors: Todd Jay Rockstroh, Michael Francis Xavier Gigliotti, William Thomas Carter, David Henry Abbott, Rajendra Machukar KELKAR