Patents by Inventor Gregory A. Bell

Gregory A. Bell 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).

  • METHODS AND APPARATUS USING REFRIGERANT COMPOSITIONS COMPRISING REFRIGERANT AND LUBRICANT COMPRISING PERFLUOROPOLYETHER AND NON-FLUORINATED LUBRICANT
    Publication number: 20160068731
    Abstract: Disclosed herein is a method to improve miscibility in refrigeration, air conditioning, heat pump or power cycle systems comprising charging a refrigeration, air conditioning or heat pump system with a refrigerant composition; wherein the refrigerant composition comprises at least one refrigerant and a lubricant comprising at least one perfluoropolyether and at least one non-fluorinated lubricant, provided that the refrigerant composition has no more than two liquid phases over the range of the composition and over a range of temperature from about ?40° C. to about +60° C. Also disclosed is a refrigeration, air conditioning, heat pump, or power cycle system containing said refrigerant composition.
    Type: Application
    Filed: April 14, 2014
    Publication date: March 10, 2016
    Inventors: BARBARA HAVILAND MINOR, BRIAN RALPH ENGLER, THOMAS JOSEPH LECK, GREGORY A. BELL, JON LEE HOWELL, KONSTANTINOS KONTOMARIS
  • REFRIGERANT ADDITIVE COMPOSITIONS CONTAINING PERFLUOROPOLYETHERS
    Publication number: 20140245760
    Abstract: The present invention relates to compositions and processes of using perfluoropolyether to maintain or improve the oil return, lubrication, cooling capacity, or energy efficiency of a refrigeration, air conditioning or heat transfer system.
    Type: Application
    Filed: May 14, 2014
    Publication date: September 4, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Thomas Joseph Leck, Thomas Frank Saturno, Gregory A. Bell
  • Refrigerant additive compositions containing perfluoropolyethers
    Patent number: 8426657
    Abstract: The present invention relates to compositions and processes of using perfluoropolyether to maintain or improve the oil return, lubrication, cooling capacity, or energy efficiency of a refrigeration, air conditioning or heat transfer system.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: April 23, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Thomas J. Leck, Thomas Frank Saturno, Gregory A. Bell
  • Lubricated metal article
    Patent number: 8372486
    Abstract: Liquid hydrofluorocarbons provide low corrosivity lubrication of metallic surfaces especially at elevated temperatures.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: February 12, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Gregory A. Bell, Jon Lee Howell, Clay Woodward Jones, Robert Clayton Wheland
  • Refrigerant compositions containing perfluoropolyethers
    Patent number: 8188323
    Abstract: The present invention relates to compositions and processes of using perfluoropolyether to maintain or improve the oil return, lubrication, cooling capacity or energy efficiency of the refrigeration, air conditioning and heat transfer system.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: May 29, 2012
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Thomas J. Leck, Thomas Frank Saturno, Gregory A. Bell
  • Refrigerant Additive Compositions Containing Perfluoropolyethers
    Publication number: 20120011864
    Abstract: The present invention relates to compositions and processes of using perfluoropolyether to maintain or improve the oil return, lubrication, cooling capacity, or energy efficiency of a refrigeration, air conditioning or heat transfer system.
    Type: Application
    Filed: September 23, 2011
    Publication date: January 19, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: THOMAS J. LECK, Thomas Frank Saturno, Gregory A. Bell
  • Refrigerant additive compositions containing perfluoropolyethers
    Patent number: 8049046
    Abstract: The present invention relates to compositions and processes of using perfluoropolyether to maintain or improve the oil return, lubrication, cooling capacity, or energy efficiency of a refrigeration, air conditioning or heat transfer system.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: November 1, 2011
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Thomas J. Leck, Thomas Frank Saturno, Gregory A. Bell
  • Refrigerant Additive Compositions Containing Perfluoropolyethers
    Publication number: 20100243948
    Abstract: The present invention relates to compositions and processes of using perfluoropolyether to maintain or improve the oil return, lubrication, cooling capacity, or energy efficiency of a refrigeration, air conditioning or heat transfer system.
    Type: Application
    Filed: June 9, 2010
    Publication date: September 30, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Thomas J. Leck, Thomas Frank Saturno, Gregory A. Bell
  • Refrigerant additive compositions containing perfluoropolyethers
    Patent number: 7759532
    Abstract: The present invention relates to compositions and processes of using perfluoropolyether to maintain or improve the oil return, lubrication, cooling capacity, or energy efficiency of a refrigeration, air conditioning or heat transfer system.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: July 20, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Thomas J. Leck, Thomas Frank Saturno, Gregory A. Bell
  • METHOD FOR LUBRICATING METALS
    Publication number: 20080176774
    Abstract: Liquid hydrofluorocarbons provide low corrosivity lubrication of metallic surfaces especially at elevated temperatures.
    Type: Application
    Filed: December 17, 2007
    Publication date: July 24, 2008
    Applicant: E. I. DUPONT DE NEMOURS AND COMPANY
    Inventors: GREGORY A. BELL, JON LEE HOWELL, CLAY WOODWARD JONES, ROBERT CLAYTON WHELAND
  • Composition comprising halogenated oil
    Patent number: 6528457
    Abstract: A composition that can be used as lubricant for high electric field including spark plug boots is disclosed. The composition comprises, or is produced by combining, a halogenated oil such as a perfluoropolyether, a polytrichlorofluoroethylene, a fluorosilicone, or combinations of two or more thereof; a basic thickener; and optionally an additional thickener in which the basic thickener is a metal hydroxide, a metal salt, an ammonium salt, or combinations of two or more thereof. The optional additional thickener is polytetrafluoroethylene, talc, silica, clay, boron nitride, metal soaps, titanium dioxide, polydimethylsiloxane, polyurea, polyurethane, or combinations of two or more thereof. Also provided is a spark plug boot that comprises the composition applied thereto.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: March 4, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Jon L. Howell, H. Carl Walther, Gregory A. Bell
  • Composition comprising halogenated oil
    Publication number: 20030013617
    Abstract: A composition that can be used as lubricant for high electric field including spark plug boots is disclosed. The composition comprises, or is produced by combining, a halogenated oil such as a perfluoropolyether, a polytrichlorofluoroethylene, a fluorosilicone, or combinations of two or more thereof; a basic thickener; and optionally an additional thickener in which the basic thickener is a metal hydroxide, a metal salt, an ammonium salt, or combinations of two or more thereof. The optional additional thickener is polytetrafluoroethylene, talc, silica, clay, boron nitride, metal soaps, titanium dioxide, polydimethylsiloxane, polyurea, polyurethane, or combinations of two or more thereof. Also provided is a spark plug boot that comprises the composition applied thereto.
    Type: Application
    Filed: June 28, 2001
    Publication date: January 16, 2003
    Inventors: Jon L. Howell, H. Carl Walther, Gregory A. Bell