Patents by Inventor Alexander P. Varghese

Alexander P. Varghese 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).

  • Apparatus for insulating cryogenic devices
    Patent number: 5589020
    Abstract: A method and apparatus for facilitating insulation of cryogenic devices such as piping, dewars, tanks, superconducting assemblies and the like. A sleeve having a generally circular cross-section and a diameter slightly larger than the cryogenic device is fabricated from a material preferably having low thermal emissivity and covered with the required thickness of insulation so that what the insulated sleeve with the device installed inside is placed into a housing or jacket the required heat leak from the device when in use is achieved.
    Type: Grant
    Filed: August 1, 1994
    Date of Patent: December 31, 1996
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Alexander P. Varghese
  • Support system and method for jacketed multiple cryogenic pipes for cyrogenic fluid transfer
    Patent number: 5570723
    Abstract: An assembly and method for supporting a plurality of individually insulated pipes or conduits inside a vacuum jacket where the insulated pipes are positioned or fixed relative to one another and the inside surface of the vacuum jacket.
    Type: Grant
    Filed: August 26, 1994
    Date of Patent: November 5, 1996
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Kwang-Fu P. Hwang, Alexander P. Varghese, David D. Nguyen, Thomas Joseph
  • 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
  • Method and apparatus for storing cryogenic fluids
    Patent number: 4877153
    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 vapor withdrawal means of the stored cryogen intercepts heat transfer into the stored cryogen.
    Type: Grant
    Filed: February 4, 1988
    Date of Patent: October 31, 1989
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Alexander P. Varghese, Robert H. Herring