Patents Represented by Attorney William E. Marsh

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  • Method and apparatus for storing cryogenic fluids
    Patent number: 4988014
    Abstract: Method and apparatus for preventing loss of liquid cryogen due to heat infiltration into the cryogen stored in a dewar. At least one transient heat shield disposed in the vacuum space between the inner and outer vessels of the dewar in heat exchange with normal cryogenic liquid, cold gas, or supercritical fluid withdrawal means of the stored cryogen, intercepts heat transfer into the stored cryogen.
    Type: Grant
    Filed: August 3, 1989
    Date of Patent: January 29, 1991
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Alexander P. Varghese, Robert H. Herring