Patents by Inventor Jalal Hunain Zia

Jalal Hunain Zia 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).

  • Superconducting cable cooling system
    Patent number: 7395675
    Abstract: A superconducting cable cooling system, wherein coolant continually provides cooling to superconducting cable, comprising a plurality of nodes within a superconducting cable network and a plurality of legs of superconducting cable which interconnect each of the nodes of the superconducting cable network.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: July 8, 2008
    Assignee: Praxair Technology, Inc.
    Inventors: John Henri Royal, Barry Minbiole, Jalal Hunain Zia, Nancy Jean Lynch
  • Cryogenic refrigeration system for superconducting devices
    Patent number: 7228686
    Abstract: A system for cooling one or more discrete superconducting devices wherein a primary refrigerator subcools cryogenic liquid for desubcooling in the devices and subsequently resubcools this liquid in a recirculation loop, and additional cryogenic liquid is maintained in a subcooled condition within a reserve storage container by diversion of some of the refrigeration generated by the primary refrigerator into the reserve storage container.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: June 12, 2007
    Assignee: Praxair Technology, Inc.
    Inventors: John Henri Royal, Richard C. Fitzgerald, Norm Henry White, Jalal Hunain Zia, M. Mushtaq Ahmed
  • Cryocooler operation with getter matrix
    Patent number: 7219501
    Abstract: A method for operating a cryocooler wherein some cryocooler working gas is diverted from the pressure wave pathway before passing to the cold portion of the cryocooler, passed to a getter for adsorptive cleaning of contaminants, and returned to the pressure wave pathway at a warm portion of the pressure wave pathway.
    Type: Grant
    Filed: November 2, 2004
    Date of Patent: May 22, 2007
    Assignee: Praxair Technology, Inc.
    Inventors: Jalal Hunain Zia, Arun Acharya, Bayram Arman