Patents by Inventor Himanshu M. Joshi

Himanshu M. Joshi 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).

  • Patent number: 7836941
    Abstract: Fouling of heat exchange surfaces is mitigated by a process in which a mechanical force is applied to a fixed heat exchanger to excite a vibration in the heat exchange surface and produce shear waves in the fluid adjacent the heat exchange surface. The mechanical force is applied by a dynamic actuator coupled to a controller to produce vibration at a controlled frequency and amplitude output that minimizes adverse effects to the heat exchange structure. The dynamic actuator may be coupled to the heat exchanger in place and operated while the heat exchanger is on line.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: November 23, 2010
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Limin Song, Julio D. Lobo, Glen B. Brons, San Chhotray, Himanshu M. Joshi, George A. Lutz
  • Publication number: 20070267176
    Abstract: Fouling of heat exchange surfaces is mitigated by a process in which a mechanical force is applied to a fixed heat exchanger to excite a vibration in the heat exchange surface and produce shear waves in the fluid adjacent the heat exchange surface. The mechanical force is applied by a dynamic actuator coupled to a controller to produce vibration at a controlled frequency and amplitude output that minimizes adverse effects to the heat exchange structure. The dynamic actuator may be coupled to the heat exchanger in place and operated while the heat exchanger is on line.
    Type: Application
    Filed: May 19, 2006
    Publication date: November 22, 2007
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Limin Song, Julio D. Lobo, Glen B. Brons, San Chhotray, Himanshu M. Joshi, George A. Lutz