Patents by Inventor Jagadish Janardhan

Jagadish Janardhan 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).

  • Shifting mechanisms for fluid jet decoking tools
    Patent number: 9422479
    Abstract: A mode shifting apparatus for a decoking tool. A diversion plate can be used to provide selective delivery of a pressurized decoking fluid to one or the other of nozzles in the tool. The mode shifting apparatus can be used to switch between a cutting mode of operation and a drilling mode of operation by rotation of the diversion plate, where a biasing force causes the diversion plate to unseat itself from an adjacent surface of the tool in order to reduce friction forces between them. The diversion plate may be temporarily unseated from an adjacent surface of the mode shifting apparatus prior to relative rotation between them such that both rotationally-induced forces and the need for relying upon a lubricating fluid to achieve damping between adjacent component surfaces may be reduced.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: August 23, 2016
    Assignee: Flowserve Management Company
    Inventors: Daniel O. Arzuaga, Jagadish Janardhan
  • Shifting mechanisms for fluid jet decoking tools
    Patent number: 9175225
    Abstract: A mode shifting apparatus for a decoking tool is described herein. A diversion plate can be used to provide selective delivery of a pressurized decoking fluid to one or the other of nozzles in the tool. The mode shifting apparatus can be used to switch between a cutting mode of operation and a drilling mode of operation by rotation of the diversion plate, where a biasing force causes the diversion plate to unseat itself from an adjacent surface of the tool in order to reduce friction forces between them.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: November 3, 2015
    Assignee: Flowserve Management Company
    Inventors: Daniel O. Arzuaga, Jagadish Janardhan
  • SHIFTING MECHANISMS FOR FLUID JET DECOKING TOOLS
    Publication number: 20140076987
    Abstract: A mode shifting apparatus for a decoking tool. A diversion plate can be used to provide selective delivery of a pressurized decoking fluid to one or the other of nozzles in the tool. The mode shifting apparatus can be used to switch between a cutting mode of operation and a drilling mode of operation by rotation of the diversion plate, where a biasing force causes the diversion plate to unseat itself from an adjacent surface of the tool in order to reduce friction forces between them. The diversion plate may be temporarily unseated from an adjacent surface of the mode shifting apparatus prior to relative rotation between them such that both rotationally-induced forces and the need for relying upon a lubricating fluid to achieve damping between adjacent component surfaces may be reduced.
    Type: Application
    Filed: November 25, 2013
    Publication date: March 20, 2014
    Applicant: Flowserve Management Company
    Inventors: Daniel O. Arzuaga, Jagadish Janardhan
  • Shifting Mechanisms For Fluid Jet Decoking Tools
    Publication number: 20120199674
    Abstract: A mode shifting apparatus for a decoking tool is described herein. A diversion plate can be used to provide selective delivery of a pressurized decoking fluid to one or the other of nozzles in the tool. The mode shifting apparatus can be used to switch between a cutting mode of operation and a drilling mode of operation by rotation of the diversion plate, where a biasing force causes the diversion plate to unseat itself from an adjacent surface of the tool in order to reduce friction forces between them.
    Type: Application
    Filed: February 7, 2012
    Publication date: August 9, 2012
    Applicant: FLOWSERVE MANAGEMENT COMPANY
    Inventors: Daniel O. Arzuaga, Jagadish Janardhan