Patents by Inventor Brooks Shawn Lunger

Brooks Shawn Lunger 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).

  • Hydrofluorocarbon compositions
    Patent number: 6846792
    Abstract: Refrigerant compositions include mixtures of difluoromethane and isobutane, butane, propylene or cyclopropane; pentafluoroethane and propylene or cyclopropane; 1,1,2,2-tetrafluoroethane and propane; 1,1,1,2-tetrafluoroethane and cyclopropane; 1,1,1-trifluoroethane and DME or propylene; 1,1-difluoroethane and propane, isobutane, butane or cyclopropane; fluoroethane and propane or cyclopropane; 1,1,1,2,2,3,3-heptafluoropropane and butane, cyclopropane, DME, isobutane or propane; or 1,1,1,2,3,3,3-heptafluoropropane and butane, cyclopropane, isobutane or propane.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: January 25, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Barbara Haviland Minor, Donald Bernard Bivens, Brooks Shawn Lunger
  • Hydrofluorocarbon compositions
    Publication number: 20040014621
    Abstract: Refrigerant compositions include mixtures of difluoromethane and isobutane, butane, propylene or cyclopropane; pentafluoroethane and propylene or cyclopropane; 1,1,2,2-tetrafluoroethane and propane; 1,1,1,2-tetrafluoroethane and cyclopropane; 1,1,1-trifluoroethane and DME or propylene; 1,1-difluoroethane and propane, isobutane, butane or cyclopropane; fluoroethane and propane or cyclopropane; 1,1,1,2,2,3,3-heptafluoropropane and butane, cyclopropane, DME, isobutane or propane; or 1,1,1,2,3,3,3-heptafluoropropane and butane, cyclopropane, isobutane or propane.
    Type: Application
    Filed: December 20, 2002
    Publication date: January 22, 2004
    Inventors: Barbara Haviland Minor, Donald Bernard Bivens, Brooks Shawn Lunger
  • Hydrofluorocarbon compositions
    Patent number: 6531441
    Abstract: Refrigerant compositions include mixtures of difluoromethane and isobutane, butane, propylene or cyclopropane; pentafluoroethane and propylene or cyclopropane; 1,1,2,2-tetrafluoroethane and propane; 1,1,1,2-tetrafluoroethane and cyclopropane; 1,1,1-trifluoroethane and DME or propylene; 1,1-difluoroethane and propane, isobutane, butane or cyclopropane; fluoroethane and propane or cyclopropane; 1,1,1,2,2,3,3-heptafluoropropane and butane, cyclopropane, DME, isobutane or propane; or 1,1,1,2,3,3,3-heptafluoropropane and butane, cyclopropane, isobutane or propane.
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: March 11, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Barbara Haviland Minor, Donald Bernard Bivens, Brooks Shawn Lunger
  • Binary azeotropes of difluoromethane and hydrocarbons
    Patent number: 6001273
    Abstract: Refrigerant compositions include mixtures of difluoromethane and isobutane, butane, propylene or cyclopropane; pentafluoroethane and propylene or cyclopropane; 1,1,2,2-tetrafluoroethane and propane; 1,1,1,2-tetrafluoroethane and cyclopropane; 1,1,1-trifluoroethane and DME or propylene; 1,1-difluoroethane and propane, isobutane, butane or cyclopropane; fluoroethane and propane or cyclopropane; 1,1,1,2,2,3,3-heptafluoropropane and butane, cyclopropane, DME, isobutane or propane; or 1,1,1,2,3,3,3-heptafluoropropane and butane, cyclopropane, isobutane or propane.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: December 14, 1999
    Inventors: Barbara Haviland Minor, Donald Bernard Bivens, Brooks Shawn Lunger
  • Azeotropic and azeotrope-like compositions of 1,1,2,2-tetrafluoroethane
    Patent number: 5968406
    Abstract: The azeotropic compositions of 1,1,2,2-tetrafluoroethane and 1,1-difluoroethane and the azeotropic and azeotropic-like composition of 1,1,2,2-tetrafluoroethane and one of, 1-chloro-1,1-difluoroethane, perfluorocyclobutane, n-butane, isobutane and 1,1,1,2,3,3,3-heptafluoropropane, and their use as refrigerants, aerosol propellants and blowing agents for polymer foams, are disclosed. The azeotropic and azeotrope-like compositions of 1,1,1,2-tetrafluoroethane and one of perfluorocyclobutane and 1,1,1,2,3,3,3-heptafluoropropane are also useful as fire extinguishants.
    Type: Grant
    Filed: July 31, 1997
    Date of Patent: October 19, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Philip Lee Bartlett, Donald Bernard Bivens, Brooks Shawn Lunger, Akimichi Yokozeki
  • Hydrofluorocarbon compositions with tetrafluoroethane and cyclopropane
    Patent number: 5785883
    Abstract: Refrigerant compositions include mixtures of difluoromethane and isobutane, butane, propylene or cyclopropane; pentafluoroethane and propylene or cyclopropane; 1,1,2,2-tetrafluoroethane and propane; 1,1,1,2-tetrafluoroethane and cyclopropane; 1,1,1-trifluoroethane and DME or propylene; 1,1-difluoroethane and propane, isobutane, butane or cyclopropane; fluoroethane and propane or cyclopropane; 1,1,1,2,2,3,3-heptafluoropropane and butane, cyclopropane, DME, isobutane or propane; or 1,1,1,2,3,3,3-heptafluoropropane and butane, cyclopropane, isobutane or propane.
    Type: Grant
    Filed: April 23, 1997
    Date of Patent: July 28, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Barbara Haviland Minor, Donald Bernard Bivens, Brooks Shawn Lunger
  • Compositions which include 1,1,2,2- tetrafluoroethane and fluoroethane
    Patent number: 5762818
    Abstract: Compositions are disclosed which include 1,1,2,2-tetrafluoroethane and a propane, tris(trifluoromethyl)amine, trifluoromethylsulfur pentafluoride or fluoroethane. The term propane includes compounds of the formula C.sub.3 F.sub.a H.sub.8-a wherein 0.ltoreq.a.ltoreq.8 as well as cyclic compounds of the formula C.sub.3 F.sub.b H.sub.6-b wherein 0.ltoreq.b.ltoreq.6. These compositions are useful as refrigerants, cleaning agents, expansion agents for polyolefins and polyurethanes, aerosol propellants, heat transfer media, gaseous dielectrics, fire extinguishing agents, power cycle working fluids, polymerization media, particulate removal fluids, carrier fluids, buffing abrasive agents, and displacement drying agents.
    Type: Grant
    Filed: April 23, 1997
    Date of Patent: June 9, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Barbara Haviland Minor, Donna Marie Patron, Diana Lynn Klug, Brooks Shawn Lunger
  • Compositions which include 1,1,2,2-tetrafluoroethane and fluoropropane
    Patent number: 5733472
    Abstract: Compositions are disclosed which include 1,1,2,2-tetrafluoroethane and a propane, tris(trifluoromethyl)amine, trifluoromethylsulfur pentafluoride or fluoroethane. The term propane includes compounds of the formula C.sub.3 F.sub.a H.sub.8-a wherein 0.ltoreq.a.ltoreq.8 as well as cyclic compounds of the formula C.sub.3 F.sub.b H.sub.6-b wherein 0.ltoreq.b.ltoreq.6. These compositions are useful as refrigerants, cleaning agents, expansion agents for polyolefins and polyurethanes, aerosol propellants, heat transfer media, gaseous dielectrics, fire extinguishing agents, power cycle working fluids, polymerization media, particulate removal fluids, carrier fluids, buffing abrasive agents, and displacement drying agents.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: March 31, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Barbara Haviland Minor, Donna Marie Patron, Diana Lynn Klug, Brooks Shawn Lunger
  • Azeotropic and azeotrope-like compositions of 1,1,2,2-tetrafluoroethane
    Patent number: 5725791
    Abstract: The azeotropic compositions of 1,1,2,2-tetrafluoroethane and 1,1-difluoroethane and the azeotropic and azeotropic-like composition of 1,1,2,2-tetrafluoroethane and one of, 1-chloro-1,1-difluoroethane, perfluorocyclobutane, n-butane, isobutane and 1,1,1,2,3,3,3-heptafluoropropane, and their use as refrigerants, aerosol propellants and blowing agents for polymer foams, are disclosed. The azeotropic and azeotrope-like compositions of 1,1,1,2-tetrafluoroethane and one of perfluorocyclobutane and 1,1,1,2,3,3,3-heptafluoropropane are also useful as fire extinguishants.
    Type: Grant
    Filed: August 9, 1993
    Date of Patent: March 10, 1998
    Assignee: E. I. du pont de Nemours and Company
    Inventors: Donald Bernard Bivens, Brooks Shawn Lunger, Akimichi Yokozeki
  • Hydrofluorocarbon compositions
    Patent number: 5672293
    Abstract: Refrigerant compositions include mixtures of difluoromethane and isobutane, butane, propylene or cyclopropane; pentafluoroethane and propylene or cyclopropane; 1,1,2,2-tetrafluoroethane and propane; 1,1,1,2-tetrafluoroethane and cyclopropane; 1,1,1-trifluoroethane and DME or propylene; 1,1-difluoroethane and propane, isobutane, butane or cyclopropane; fluoroethane and propane or cyclopropane; 1,1,1,2,2,3,3-heptafluoropropane and butane, cyclopropane, DME, isobutane or propane; or 1,1,1,2,3,3,3-heptafluoropropane and butane, cyclopropane, isobutane or propane.
    Type: Grant
    Filed: May 4, 1995
    Date of Patent: September 30, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Barbara Haviland Minor, Donald Bernard Bivens, Brooks Shawn Lunger
  • Azeotropic and azeotrope-like compositions of a hydrofluorocarbon and a hydrocarbon
    Patent number: 5670079
    Abstract: This invention relates to compositions that include at least one hydrocarbon and at least one fluorinated species. Such compositions may be used as refrigerants, cleaning agents, expansion agents for foams such as polyolefins and polyurethanes, aerosol propellants, heat transfer media, gaseous dielectrics, fire extinguishing agents, power cycle working fluids, polymerization media, particulate removal fluids, carrier fluids, buffing abrasive agents, displacement drying agents, among others.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: September 23, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Brooks Shawn Lunger, Glenn Scott Shealy
  • Azeotropic and azeotrope-like compositions of 1,1,2,2-tetrafluoroethane and (iso) butane
    Patent number: 5648017
    Abstract: The azeotropic compositions of 1,1,2,2-tetrafluoroethane and 1,1-difluoroethane and the azeotropic and azeotropic-like composition of 1,1,2,2-tetrafluoroethane and one of, 1-chloro-1,1-difluoroethane, perfluorocyclobutane, n-butane, isobutane and 1,1,1,2,3,3,3-heptafluoropropane, and their use as refrigerants, aerosol propellants and blowing agents for polymer foams, are disclosed. The azeotropic and azeotrope-like compositions of 1,1,1,2-tetrafluoroethane and one of perfluorocyclobutane and 1,1,1,2,3,3,3-heptafluoropropane are also useful as fire extinguishants.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 15, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Philip Lee Bartlett, Donald Bernard Bivens, Brooks Shawn Lunger, Akimichi Yokozeki