Patents by Inventor Ravindranath Ps

Ravindranath Ps 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).

  • Seal for a rotary machine
    Patent number: 9951637
    Abstract: A rotary machine includes a machine rotor, a machine stator, a labyrinth seal disposed between the machine rotor and the machine stator, a dry gas seal disposed between the machine rotor and the machine stator, the dry gas seal being disposed downstream of the labyrinth seal, the labyrinth seal including a labyrinth seal rotor, and, a labyrinth seal stator, the labyrinth seal stator having a cavity containing a heat transfer medium configured to transfer heat between the labyrinth seal stator and a zone adjacent the labyrinth seal stator to cool or heat a pressurized process fluid before the process fluid bears against the dry gas seal.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: April 24, 2018
    Inventors: Matteo Berti, Stefano Bresciani, Ravindranath Ps, Lorenza Sassolini, Alessandro Ciani
  • SEAL FOR A ROTARY MACHINE
    Publication number: 20150226076
    Abstract: A rotary machine includes a machine rotor, a machine stator, a labyrinth seal disposed between the machine rotor and the machine stator, a dry gas seal disposed between the machine rotor and the machine stator, the dry gas seal being disposed downstream of the labyrinth seal, the labyrinth seal including a labyrinth seal rotor, and, a labyrinth seal stator, the labyrinth seal stator having a cavity containing a heat transfer medium configured to transfer heat between the labyrinth seal stator and a zone adjacent the labyrinth seal stator to cool or heat a pressurized process fluid before the process fluid bears against the dry gas seal.
    Type: Application
    Filed: September 6, 2012
    Publication date: August 13, 2015
    Applicant: NUOVO PIGNONE S.p.A.
    Inventors: Matteo Berti, Stefano Bresciani, Ravindranath Ps, Lorenza Sassolini, Alessandro Ciani