Patents by Inventor Pettai Krishna Shankar

Pettai Krishna Shankar 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).

  • Method for providing controlled heat to a process
    Patent number: 7108730
    Abstract: This invention relates to a method for providing controlled heat to a process utilizing a flameless distributed combustion.
    Type: Grant
    Filed: April 1, 2003
    Date of Patent: September 19, 2006
    Assignee: Shell Oil Company
    Inventors: Rashmi K Shah, Thomas Mikus, Pettai Krishna Shankar
  • Flameless combustor process heater
    Patent number: 7025940
    Abstract: A process heater is provided utilizing flameless combustion, the process heater having: an oxidation reaction chamber, the oxidation reaction chamber having an inlet for oxidant, an outlet for combustion products, and a flow path between the inlet and the outlet; a fuel conduit capable of transporting a fuel mixture to a plurality of fuel nozzles within the oxidation reaction chamber, each nozzle providing communication from within the fuel conduit to the oxidation chamber, with each nozzle along the flowpath between the inlet and the outlet; a preheater in communication with the oxidation chamber inlet, the preheater capable of increasing the temperature of the oxidant to a temperature resulting in the combined oxidant and fuel from the fuel nozzle closest to the oxidation chamber inlet being greater than the autoignition temperature of the combined oxidant and fuel from the fuel nozzle closest to the oxidation chamber inlet; and a process chamber in a heat exchange relationship to the oxidation reaction cha
    Type: Grant
    Filed: October 8, 1998
    Date of Patent: April 11, 2006
    Assignee: Shell Oil Company
    Inventors: Rashmi K Shah, Thomas Mikus, Pettai Krishna Shankar
  • Method for providing controlled heat to a process
    Publication number: 20030182858
    Abstract: This invention relates to a method for providing controlled heat to a process utilizing a flameless distributed combustion.
    Type: Application
    Filed: April 1, 2003
    Publication date: October 2, 2003
    Inventors: Rashmi K. Shah, Thomas Mikus, Pettai Krishna Shankar