Patents by Inventor Zenghu Han

Zenghu Han 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).

  • Publication number: 20240044736
    Abstract: A system for monitoring stored spent fuel rods is provided, the system comprising: canisters containing the spent fuel rods; and temperature measuring means positioned on external surfaces of the canisters. Also provided is a method for monitoring stored spent fuel rods contained in canisters, the method comprising measuring temperature of the canisters at a plurality of external surfaces of each of the canisters, recording time of temperature differences between said external surfaces, determining time of oxidation initiation of the spent fuel rods based on the recording time, and preventing oxidation from occurring.
    Type: Application
    Filed: August 2, 2022
    Publication date: February 8, 2024
    Applicant: UCHICAGO ARGONNE, LLC
    Inventors: Yung Y. Liu, Brian Craig, Zenghu Han, Hirofumi Takeda
  • Publication number: 20230268094
    Abstract: The invention provides a containment structure, the containment structure comprising a vessel with an upwardly facing opening defining a periphery; a lid in rotatable and slidable communication with the periphery; and a plurality of rods contained within the lid and in slidable communication with the periphery. Also provided is a method for sealing and unsealing a containment vessel defining a body with a longitudinal axis and a lid, the method comprising simultaneously moving the lid parallel to the longitudinal axis and orthogonal to the longitudinal axis.
    Type: Application
    Filed: February 18, 2022
    Publication date: August 24, 2023
    Applicant: UCHICAGO ARGONNE, LLC
    Inventors: Paul S. Blanton, Zenghu Han, Yung Y. Liu, Ronald B. Pope, James M. Shuler
  • Patent number: 10186336
    Abstract: A system for encapsulating and storing disused radiological sources in sealed capsules is provided, the system having a basket to removably position capsules relative to each other, the capsules containing the radiological sources; a containment vessel for receiving the basket; and a cask reversibly encapsulating or otherwise housing the containment vessel. Also provided is a method for packaging, transporting and storing disused radiological sources, the method having the steps of transporting sealed capsules containing radiological sources from water pools to baskets; placing the basket in a containment vessel and sealing the vessel with helium backfill; placing the vessel in a cask and reversibly capping the cask; surrounding the cask with personnel a shield and crumple zones to create a construct; and transporting and storing the construct until its final disposal at a geological repository or a deep borehole, all without repackaging of the disused radiological sealed capsules.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: January 22, 2019
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Yung Y. Liu, Zenghu Han, James M. Shuler
  • Publication number: 20180240560
    Abstract: A system for encapsulating and storing disused radiological sources in sealed capsules is provided, the system having a basket to removably position capsules relative to each other, the capsules containing the radiological sources; a containment vessel for receiving the basket; and a cask reversibly encapsulating or otherwise housing the containment vessel. Also provided is a method for packaging, transporting and storing disused radiological sources, the method having the steps of transporting sealed capsules containing radiological sources from water pools to baskets; placing the basket in a containment vessel and sealing the vessel with helium backfill; placing the vessel in a cask and reversibly capping the cask; surrounding the cask with personnel a shield and crumple zones to create a construct; and transporting and storing the construct until its final disposal at a geological repository or a deep borehole, all without repackaging of the disused radiological sealed capsules.
    Type: Application
    Filed: February 17, 2017
    Publication date: August 23, 2018
    Applicant: UCHICAGO ARGONNE, LLC.
    Inventors: Yung Y. Liu, Zenghu Han, James M. Shuler
  • Patent number: 8940181
    Abstract: A heat transfer fluid emulsion includes a heat transfer fluid, and liquid droplets dispersed within the heat transfer fluid, where the liquid droplets are substantially immiscible with respect to the heat transfer fluid and have dimensions that are no greater than about 100 nanometers. In addition, the thermal conductivity of the heat transfer fluid emulsion is greater than the thermal conductivity of the heat transfer fluid.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: January 27, 2015
    Assignee: University of Maryland College Park
    Inventors: Bao Yang, Zenghu Han
  • Publication number: 20120112121
    Abstract: A heat transfer fluid emulsion includes a heat transfer fluid, and liquid droplets dispersed within the heat transfer fluid, where the liquid droplets are substantially immiscible with respect to the heat transfer fluid and have dimensions that are no greater than about 100 nanometers. In addition, the thermal conductivity of the heat transfer fluid emulsion is greater than the thermal conductivity of the heat transfer fluid.
    Type: Application
    Filed: December 21, 2011
    Publication date: May 10, 2012
    Applicant: University of Maryland, College Park
    Inventors: Bao Yang, Zenghu Han
  • Publication number: 20070120088
    Abstract: A heat transfer fluid emulsion includes a heat transfer fluid, and liquid droplets dispersed within the heat transfer fluid, where the liquid droplets are substantially immiscible with respect to the heat transfer fluid and have dimensions that are no greater than about 100 nanometers. In addition, the thermal conductivity of the heat transfer fluid emulsion is greater than the thermal conductivity of the heat transfer fluid.
    Type: Application
    Filed: October 13, 2006
    Publication date: May 31, 2007
    Applicant: UNIVERSITY OF MARYLAND
    Inventors: Bao Yang, Zenghu Han