Patents by Inventor Jeffrey P. Kingsley

Jeffrey P. Kingsley 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).

  • Enhanced oxidation of organic chemicals
    Patent number: 5536875
    Abstract: Organic chemical oxidation reactions are carried out using pure or nearly pure oxygen and evaporative cooling. Advantageous operating results are achieved thereby, and the oxidation of organic chemicals resulting in the production of solid products or byproducts is facilitated by obviating the need for direct contact heat exchange surfaces that become coated with solid products or byproducts.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: July 16, 1996
    Assignee: Praxair Technology, Inc.
    Inventors: Anne K. Roby, Jeffrey P. Kingsley
  • Terephthalic acid production using evaporative cooling
    Patent number: 5523474
    Abstract: The oxidation of p-xylene to produce terephthalic acid is carried out using pure or nearly pure oxygen and evaporative cooling. By-product and waste generation are reduced, oxygen utilization is enhanced, desirable operating conditions are employed, and the need for direct contact heat exchange surfaces in the reactor vessel is obviated.
    Type: Grant
    Filed: May 11, 1994
    Date of Patent: June 4, 1996
    Assignee: Praxair Technology, Inc.
    Inventors: Jeffrey P. Kingsley, Anne K. Roby
  • Variable liquid level eductor/impeller gas-liquid mixing apparatus and process
    Patent number: 5451348
    Abstract: Apparatus and process for dissolving a gas in a liquid such as a hot edible oil for deodorizing, hydrogenating or other purposes. The invention comprises recirculating the liquid from a closed container, through an eductor and back into the liquid, and connecting the vacuum end of the eductor to the overhead gas space to draw gas down into the liquid. Preferably the apparatus contains an impeller means for sucking gas down from the overhead space, if the liquid is at an operating level.
    Type: Grant
    Filed: April 18, 1994
    Date of Patent: September 19, 1995
    Assignee: Praxair Technology, Inc.
    Inventor: Jeffrey P. Kingsley
  • Advanced gas control in gas-liquid mixing systems
    Patent number: 5451349
    Abstract: Sloped inner and outer conical baffles are provided in a gas-liquid mixing system having a recirculating portion of a body of liquid, separated from a quiescent portion of the body of liquid and an overhead gas phase, precluding the collection of gas under the baffles, eliminating dead zones of gas, and minimizing the passage of gas to the overhead gas phase during normal operation, while facilitating the venting of gases during upset conditions.
    Type: Grant
    Filed: August 8, 1994
    Date of Patent: September 19, 1995
    Assignee: Praxair Technology, Inc.
    Inventor: Jeffrey P. Kingsley
  • Terephthalic acid production
    Patent number: 5371283
    Abstract: Oxygen or an oxygen-rich gas is used in the production of terephthalic acid in a reaction system that mitigates the flammability hazards associated therewith. Lower reactant and solvent consumption is achieved, with lower production of unwanted by-products, lower gas handling costs and lower environmental impact concerns than with conventional air based terephthalic acid production.
    Type: Grant
    Filed: December 22, 1993
    Date of Patent: December 6, 1994
    Assignee: Praxair Technology, Inc.
    Inventors: Jeffrey P. Kingsley, Anne K. Roby, Lawrence M. Litz