Patents by Inventor Donald Bernard Bivens
Donald Bernard Bivens 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).
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Publication number: 20200354618Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a tetrafluoropropene and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.Type: ApplicationFiled: July 29, 2020Publication date: November 12, 2020Applicant: THE CHEMOURS COMPANY FC, LLCInventors: BARBARA HAVILAND MINOR, THOMAS JOSEPH LECK, DONALD BERNARD BIVENS
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Patent number: 10767092Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a tetrafluoropropene and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.Type: GrantFiled: January 3, 2019Date of Patent: September 8, 2020Assignee: THE CHEMOURS COMPANY FC, LLCInventors: Barbara Haviland Minor, Thomas Joseph Leck, Donald Bernard Bivens
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Publication number: 20190177590Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a tetrafluoropropene and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.Type: ApplicationFiled: January 3, 2019Publication date: June 13, 2019Applicant: THE CHEMOURS COMPANY FC, LLCInventors: BARBARA HAVILAND MINOR, THOMAS JOSEPH LECK, DONALD BERNARD BIVENS
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Patent number: 10208236Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a tetrafluoropropene and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.Type: GrantFiled: November 28, 2016Date of Patent: February 19, 2019Assignee: THE CHEMOURS COMPANY FC, LLCInventors: Barbara Haviland Minor, Thomas Joseph Leck, Donald Bernard Bivens
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Publication number: 20170073561Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a tetrafluoropropene and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.Type: ApplicationFiled: November 28, 2016Publication date: March 16, 2017Inventors: BARBARA HAVILAND MINOR, THOMAS JOSEPH LECK, DONALD BERNARD BIVENS
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Patent number: 9540556Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a tetrafluoropropene and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.Type: GrantFiled: September 29, 2014Date of Patent: January 10, 2017Assignee: THE CHEMOURS COMPANY FC, LLCInventors: Barbara Haviland Minor, Thomas Joseph Leck, Donald Bernard Bivens
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Publication number: 20150013942Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a tetrafluoropropene and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.Type: ApplicationFiled: September 29, 2014Publication date: January 15, 2015Inventors: Barbara Haviland MINOR, Thomas Joseph LECK, Donald Bernard BIVENS
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Publication number: 20150007592Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises 2,3,3,3-tetrafluoropropene (HFC-1234yf) and at least one hydrocarbon. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, and aerosol propellants.Type: ApplicationFiled: September 23, 2014Publication date: January 8, 2015Inventors: BARBARA HAVILAND MINOR, THOMAS JOSEPH LECK, DONALD BERNARD BIVENS, AKIMICHI YOKOZEKI
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Patent number: 8871112Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises 2,3,3,3-tetrafluoropropene (HFC-1234yf) and at least one hydrocarbon. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, and aerosol propellants.Type: GrantFiled: November 16, 2009Date of Patent: October 28, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Barbara Haviland Minor, Thomas J. Leck, Donald Bernard Bivens, Akimichi Yokozeki
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Patent number: 7959825Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.Type: GrantFiled: June 17, 2009Date of Patent: June 14, 2011Assignee: E.I. du Pont de Nemours and CompanyInventors: Barbara Haviland Minor, Velliyur Nott Mallikarjuna Rao, Donald Bernard Bivens, Deepak Perti, Mark Steven Baunchalk
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Patent number: 7914698Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.Type: GrantFiled: June 17, 2009Date of Patent: March 29, 2011Assignee: E.I. du Pont de Nemours and CompanyInventors: Barbara Haviland Minor, Velliyur Nott Mallikarjuna Rao, Donald Bernard Bivens, Deepak Perti, Mark Steven Baunchalk
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Publication number: 20110017942Abstract: Disclosed are compositions containing about 17.0 weight percent to about 22.0 weight percent pentafluoroethane; about 77.0 weight percent to about 81.0 weight percent 1,1,1,2-tetrafluoroethane; and about 1.0 weight percent to about 2.0 weight percent of n-butane, and which may include optional other components.Type: ApplicationFiled: April 10, 2009Publication date: January 27, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Donald Bernard Bivens, Deepak Perti
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Publication number: 20100251803Abstract: 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: ApplicationFiled: June 22, 2010Publication date: October 7, 2010Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: DONALD BERNARD BIVENS, Thomas J. Leck, Mack McFarland, Barbara Haviland Minor, John Carl Steichen
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Publication number: 20100123095Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises 2,3,3,3-tetrafluoropropene (HFC-1234yf) and at least one hydrocarbon. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, and aerosol propellants.Type: ApplicationFiled: November 16, 2009Publication date: May 20, 2010Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Barbara Haviland Minor, Thomas J. Leck, Donald Bernard Bivens, Akimichi Yokozeki
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Publication number: 20100122545Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a tetrafluoropropene and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.Type: ApplicationFiled: November 16, 2009Publication date: May 20, 2010Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Barbara Haviland Minor, Thomas J. Leck, Donald Bernard Bivens
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Publication number: 20100101245Abstract: Disclosed are refrigerant compositions comprising the following components, as expressed in weight percent, and such that the total adds up to 100%, including any additives. 7.0-9.0% wt. R32 [difluoromethane, CH2F2, having a normal boiling point of ?51.7° C.]; 39.0-50.0% wt. R125 [pentafluoroethane, CF3CHF2, having a normal boiling point of ?48.5° C.]; 39.0-50.0% wt R134a [1,1,1,2 tetrafluoroethane, CF3CHF2, normal boiling point of ?26.1° C.]; 1.9 to 2.5% wt hydrocarbon, which consists essentially of 1.5-1.8% wt R600 [n-butane, CH3CH2CH2CH3, normal boiling point of ?0.5° C.], and 0.4-0.7% wt R601a [isopentane, ((CH3)2CHCH2CH3, having normal boiling point of +27.8° C.] or R601 [n-pentane (CH3CH2CH2 CH2CH3, having a normal boiling point of +36° C.)]. Further disclosed are refrigerators, freezers, air conditioners, water chillers, and heat pumps using the compositions described herein as at least one of the heat transfer compositions in the equipment.Type: ApplicationFiled: December 19, 2007Publication date: April 29, 2010Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Donald Bernard Bivens, Thomas J. Leck
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Publication number: 20100065773Abstract: Disclosed are compositions containing pentafluoroethane, 1,1,1,2-tetrafluoroethane and at least two hydrocarbons each having eight or fewer carbon atoms. Disclosed herein are compositions containing about 13 weight percent to about 20 weight percent pentafluoroethane; about 70 weight percent to about 80 weight percent 1,1,1,2-tetrafluoroethane; about 1 weight percent to about 6 weight total of at combination of hydrocarbons consisting of n-butane and n-pentane. Also disclosed herein are compositions further comprising 1,1,1,2,3,3,3-heptafluoropropane. Also disclosed are azeotrope-like compositions comprising pentafluoroethane, 1,1,1,2-tetrafluoroethane, n-butane and n-pentane and azeotrope like compositions comprising pentafluoroethane, 1,1,1,2-tetrafluoroethane, n-butane, n-pentane, and 1,1,1,2,3,3,3-heptafluoropropane.Type: ApplicationFiled: December 18, 2007Publication date: March 18, 2010Applicant: E.I. DU PONT DE NEMOURSA AND COMPANYInventor: Donald Bernard Bivens
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Publication number: 20100011791Abstract: A heat transfer system capable of being coupled to at least one temperature controlled zone, the elements of the system comprising: (i) at least one liquid refrigerant line; (ii) at least one expansion valve selected for R22 or R422D; (iii) at least one evaporator (iv) at least one compressor; (v) at least one condenser; (vi) at least one vapor refrigerant line; and wherein all of the elements have an inlet side and an outlet side and elements (i) through (vi) are in fluid communication together and contains R422D; and the system further comprising a sensing element communicatively coupled to the outlet side of at least one evaporator and at least one expansion valve and at least one sensing element contains a fluid selected to work when R22 is in the condenser-to-evaporator circuit, or R422D. Further disclosed are methods for retrofitting R22 containing heat transfer systems, including refrigerators and air conditioners. Also disclosed are refrigerators and air conditioners containing only R422D.Type: ApplicationFiled: December 19, 2007Publication date: January 21, 2010Inventors: Roger Nicholas Strickland, Calvin Curtis Lawson, Neil Andre Roberts, James William Dunlap, Donald Bernard Bivens, Kevin Patrick O'Shea
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Publication number: 20090314015Abstract: The present invention relates to the use of flexible hoses capable of handling high pressure fluids and providing a barrier against permeation loss in air conditioning and refrigeration systems. Such hoses are particularly suitable in air conditioning and refrigeration in which new, low global warming potential refrigerant alternatives are used.Type: ApplicationFiled: August 31, 2007Publication date: December 24, 2009Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Barbara Haviland Minor, Donald Bernard Bivens, Shailesh Ratilal Doshi, Velliyur Nott Mallikarjuna Rao, Enrico Simonato
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Publication number: 20090278072Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.Type: ApplicationFiled: June 17, 2009Publication date: November 12, 2009Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Barbara Haviland Minor, Velliyur Nott Mallikarjuna Rao, Donald Bernard Bivens, Deepak Perti, Mark Steven Baunchalk