Patents by Inventor Coimbatore R. Krishna

Coimbatore R. Krishna 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).

  • Stabilizing coal-water mixtures with portland cement
    Patent number: 4602918
    Abstract: Coal-water mixes stabilized by the addition of portland cement which may additionally contain retarding carbohydrates, or borax are described.
    Type: Grant
    Filed: October 17, 1984
    Date of Patent: July 29, 1986
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Meyer Steinberg, Coimbatore R. Krishna
  • Cyclone separator having boundary layer turbulence control
    Patent number: 4511474
    Abstract: A cyclone separator including boundary layer turbulence control that is operable to prevent undue build-up of particulate material at selected critical areas on the separator walls, by selectively varying the fluid pressure at those areas to maintain the momentum of the vortex, thereby preventing particulate material from inducing turbulence in the boundary layer of the vortical fluid flow through the separator.
    Type: Grant
    Filed: January 27, 1984
    Date of Patent: April 16, 1985
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Coimbatore R. Krishna, Julius S. Milau