Patents by Inventor Theodore Fringelin Fisher

Theodore Fringelin Fisher 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).

  • System for providing refrigeration for chemical processing
    Patent number: 6604367
    Abstract: A system for providing refrigeration to a chemical processing operation wherein a refrigerant fluid is compressed and cooled, and a portion turboexpanded prior to being passed to a chemical processing operation for direct contact or indirect heat exchange.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: August 12, 2003
    Assignee: Praxair Technology, Inc.
    Inventors: M. Mushtaq Ahmed, Theodore Fringelin Fisher
  • SYSTEM FOR PROVIDING REFRIGERATION FOR CHEMICAL PROCESSING
    Publication number: 20030110782
    Abstract: A system for providing refrigeration to a chemical processing operation wherein a refrigerant fluid is compressed and cooled, and a portion turboexpanded prior to being passed to a chemical processing operation for direct contact or indirect heat exchange.
    Type: Application
    Filed: December 19, 2001
    Publication date: June 19, 2003
    Inventors: M. Mushtaq. Ahmed, Theodore Fringelin Fisher
  • System for providing direct contact refrigeration
    Patent number: 6415628
    Abstract: A method and apparatus for providing direct contact refrigeration to a heat source wherein refrigeration is generated using a recirculating defined multicomponent refrigerant fluid, and transferred to a direct contact refrigerant fluid which directly contacts the heat source.
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: July 9, 2002
    Assignee: Praxair Technology, Inc.
    Inventors: M. Mushtaq Ahmed, Theodore Fringelin Fisher
  • Cryogenic rectification system for processing atmospheric fluids
    Patent number: 6314757
    Abstract: A cryogenic rectification system comprising a rare gas concentrator column for producing a liquid having an enhanced concentration of krypton and xenon, and which processes atmospheric fluids and also produces gaseous oxygen and liquid nitrogen.
    Type: Grant
    Filed: August 25, 2000
    Date of Patent: November 13, 2001
    Assignee: Prakair Technology, Inc.
    Inventors: James Robert Dray, Theodore Fringelin Fisher
  • Gas recycle for float glass system
    Patent number: 5925158
    Abstract: A method for cleaning and recycling protective atmosphere for a float glass facility wherein contaminated protective atmosphere is cooled, preferably while scrubbing out particulates, compressed, and then purified by passage through a bed comprising water selective and hydrogen sulfide selective adsorbents.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: July 20, 1999
    Assignee: Praxair Technology, Inc.
    Inventors: Joseph Alfred Weber, Theodore Fringelin Fisher, Dante Patrick Bonaquist
  • Air separation float glass system
    Patent number: 5888265
    Abstract: A cryogenic air separation plant or a combined pressure swing adsorption plant and membrane separation plant is integrated with a float glass manufacturing system wherein oxygen from the plant is used for oxy-fuel combustion in the melt furnace and nitrogen from the plant is used as a protective atmosphere in the float glass forming chamber.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: March 30, 1999
    Assignee: Praxair Technology, Inc.
    Inventors: Dante Patrick Bonaquist, Joseph Alfred Weber, Theodore Fringelin Fisher
  • Process for producing ammonia and recovering argon using low purity oxygen
    Patent number: 5775128
    Abstract: A process for producing ammonia synthesis gas and recovering argon in conjunction with a low-purity oxygen separating unit.
    Type: Grant
    Filed: May 2, 1997
    Date of Patent: July 7, 1998
    Assignee: Praxair Technology, Inc.
    Inventors: Raymond Francis Drnevich, Theodore Fringelin Fisher
  • Cryogenic rectification system for recovery of fluorine compounds
    Patent number: 5771713
    Abstract: A cryogenic system for the recovery of fluorine compounds from a carrier gas stream such as an effluent stream from a semiconductor facility comprising three cryogenic rectification columns and a mass transfer contacting device.
    Type: Grant
    Filed: August 20, 1997
    Date of Patent: June 30, 1998
    Assignee: Praxair Technology, Inc.
    Inventor: Theodore Fringelin Fisher