Patents by Inventor Mack McFarland

Mack McFarland 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).

  • Secondary loop cooling system having a bypass and a method for bypassing a reservoir in the system
    Patent number: 8418481
    Abstract: An air conditioning or refrigeration system includes a secondary loop cooling system for use with a vapor compression system having a bypass line in order to bypass a reservoir in the secondary loop system. This bypass allows the air conditioning or refrigeration system to cool down more quickly. The secondary loop cooling system uses a non-flammable cooling fluid, which is particularly useful when the refrigerant used in the vapor compression system is flammable.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: April 16, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Barbara Haviland Minor, Mack McFarland
  • SECONDARY LOOP COOLING SYSTEM HAVING A BYPASS AND A METHOD FOR BYPASSING A RESERVOIR IN THE SYSTEM
    Publication number: 20110197604
    Abstract: An air conditioning or refrigeration system includes a secondary loop cooling system for use with a vapor compression system having a bypass line in order to bypass a reservoir in the secondary loop system. This bypass allows the air conditioning or refrigeration system to cool down more quickly. The secondary loop cooling system uses a non-flammable cooling fluid, which is particularly useful when the refrigerant used in the vapor compression system is flammable.
    Type: Application
    Filed: December 18, 2008
    Publication date: August 18, 2011
    Applicant: E.I. DUPONT DE NEMOURS AND COMPANY
    Inventors: Barbara Haviland Minor, Mack Mcfarland
  • DETECTABLE REFRIGERANT COMPOSITIONS AND USES THEREOF
    Publication number: 20100251803
    Abstract: Disclosed herein are detectable refrigerant compositions, comprising from about 0.001 to about 5 weight percent tracer compositions, which are useful to identify leaking in a vapor compression refrigeration and/or air conditioning system. The presence of the tracers make the refrigerant compositions detectable by chemo/electro-active array, corona discharge, heated diode, electrochemical, photoionization, infra red, ultrasonic and electron capture detectors.
    Type: Application
    Filed: June 22, 2010
    Publication date: October 7, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: DONALD BERNARD BIVENS, Thomas J. Leck, Mack McFarland, Barbara Haviland Minor, John Carl Steichen
  • Detectable refrigerant compositions and uses thereof
    Patent number: 7779668
    Abstract: Disclosed herein are detectable refrigerant compositions, comprising from about 0.001 to about 5 weight percent tracer compositions, which are useful to identify leaking in a vapor compression refrigeration and/or air conditioning system. The presence of the tracers make the refrigerant compositions detectable by chemo/electro-active array, corona discharge, heated diode, electrochemical, photoionization, infrared, ultrasonic and electron capture detectors.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: August 24, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Thomas J. Leck, Mack McFarland, Barbara Haviland Minor, John Carl Steichen
  • Detectable Refrigerant Compositions and Uses Thereof
    Publication number: 20090189077
    Abstract: Disclosed herein are detectable refrigerant compositions, comprising from about 0.001 to about 5 weight percent tracer compositions, which are useful to identify leaking in a vapor compression refrigeration and/or air conditioning system. The presence of the tracers make the refrigerant compositions detectable by chemo/electro-active array, corona discharge, heated diode, electrochemical, photoionization, infrared, ultrasonic and electron capture detectors.
    Type: Application
    Filed: March 30, 2009
    Publication date: July 30, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Donald Bernard Bivens, Thomas J. Leck, Mack McFarland, Barbara Haviland Minor, John Carl Steichen
  • Detectable refrigerant compositions and uses thereof
    Publication number: 20050211949
    Abstract: Disclosed herein are detectable refrigerant compositions, comprising from about 0.001 to about 5 weight percent tracer compositions, which are useful to identify leaking in a vapor compression refrigeration and/or air conditioning system. The presence of the tracers make the refrigerant compositions detectable by chemo/electro-active array, corona discharge, heated diode, electrochemical, photoionization, infra red, ultrasonic and electron capture detectors.
    Type: Application
    Filed: November 9, 2004
    Publication date: September 29, 2005
    Inventors: Donald Bivens, Thomas Leck, Mack McFarland, Barbara Minor, John Steichen