Patents by Inventor Gopal D. Gupta

Gopal D. Gupta 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).

  • System for and method of generating steam for use in oil recovery processes
    Patent number: 6675747
    Abstract: A once-through boiler system for use in conjunction with a combustion chamber includes a water inlet through which water having a high total dissolved solids content is supplied to the system, at least one tubular preheating surface for preheating the water as the water flows through the preheating surface, and at least one tubular evaporation surface for further heating the water flowing therein to produce a steam/water mixture. The preheating surface is disposed downstream from the inlet and encloses at least part of the combustion chamber, and the evaporation surface is disposed within the combustion chamber, downstream from the preheating surface.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: January 13, 2004
    Assignee: Foster Wheeler Energy Corporation
    Inventors: Stephen J. Goidich, Gopal D. Gupta