Patents by Inventor Krishnan S. Chunangad

Krishnan S. Chunangad 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).

  • VERTICAL COMBINED FEED/EFFLUENT HEAT EXCHANGER WITH VARIABLE BAFFLE ANGLE
    Publication number: 20090301699
    Abstract: A shell and tube heat exchanger, such as a vertical combined feed/effluent heat exchanger (VCFE), including: a shell having a fluid inlet and a fluid outlet; a plurality of baffles mounted in the shell to guide the fluid into a helical flow pattern through the shell; wherein a helix angle ? of a baffle proximate the inlet is different than a helix angle ? of a baffle proximate the outlet.
    Type: Application
    Filed: June 5, 2008
    Publication date: December 10, 2009
    Applicant: LUMMUS NOVOLENT GMBH/LUMMUS TECHNOLOGY INC.
    Inventors: Mark S. Karrs, Krishnan S. Chunangad, Bashir I. Master
  • Heat exchanger
    Patent number: 6827138
    Abstract: A heat exchanger is configured to have quadrant shaped baffles positioned at an angle to a longitudinal axis of shell for guiding cross-flow of fluid into a helical pattern while maintaining substantially uniform velocity of the cross-flow.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: December 7, 2004
    Assignee: ABB Lummus Global Inc.
    Inventors: Bashir I. Master, Krishnan S. Chunangad, Venkateswaran Pushpanathan