Patents by Inventor Maria Romaniuk Subbaraman

Maria Romaniuk Subbaraman 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).

  • Inducer with cavitation instability controls to reduce vibrations and radial loads
    Patent number: 9206820
    Abstract: An inducer includes a hub having an inlet end and an outlet end. At least one full size blade has an inner edge is affixed to the hub and an outer edge. This full size blade extends rearwardly from the inlet end in a helical configuration. A partial shroud encloses a first length of the full size blade outer edge adjacent the inlet end. A second length of the full size blade outer edge that is adjacent to the outlet end is free of the partial shroud. It is within the scope of the disclosure to include short blades symmetrically offset from the two full size blades. These short blades have a short blade inner end affixed to the partial shroud and a short blade outer end extending from the partial shroud towards the hub, but terminating prior to reaching the hub.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: December 8, 2015
    Assignee: AEROJET ROCKETDYNE, INC.
    Inventors: Maria Romaniuk Subbaraman, Saleh Tyzoon Tyebjee
  • Inducer with Cavitation Instability Controls to Reduce Vibrations and Radial Loads
    Publication number: 20130330185
    Abstract: An inducer includes a hub having an inlet end and an outlet end. At least one full size blade has an inner edge is affixed to the hub and an outer edge. This full size blade extends rearwardly from the inlet end in a helical configuration. A partial shroud encloses a first length of the full size blade outer edge adjacent the inlet end. A second length of the full size blade outer edge that is adjacent to the outlet end is free of the partial shroud. It is within the scope of the disclosure to include short blades symmetrically offset from the two full size blades. These short blades have a short blade inner end affixed to the partial shroud and a short blade outer end extending from the partial shroud towards the hub, but terminating prior to reaching the hub.
    Type: Application
    Filed: June 11, 2012
    Publication date: December 12, 2013
    Applicant: AEROJET-GENERAL CORPORATION
    Inventors: Maria Romaniuk Subbaraman, Saleh Tyzoon Tyebjee