Patents by Inventor Glenn Scott Shealy

Glenn Scott Shealy 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).

  • Halogenated hydrocarbon refrigerant compositions containing polymeric oil-return agents
    Patent number: 6299792
    Abstract: Refrigerant compositions containing polymeric oil-return agents which solubilize or disperse mineral and synthetic oil lubricants with hydrofluorocarbon and hydrofluorocarbon/hydrochlorofluorocarbon-based refrigerants are disclosed. These polymeric oil-return agents, such as copolymers of fluorinated and non-fluorinated methacrylates, as a small proportion of an overall refrigerant composition, permit efficient return of mineral and synthetic oil lubricants from non-compressor zones back to a compressor zone in a refrigeration system operating with hydrofluorocarbon and hydrofluorocarbon/hydrochlorofluorocarbon-based refrigerants.
    Type: Grant
    Filed: January 15, 1999
    Date of Patent: October 9, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Andrew Edward Feiring, Lois Lo-I Lin, Barbara Haviland Minor, Glenn Scott Shealy, Hans O. Spauschus
  • 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
  • Compositions including a hexafluoroprpoane and dimethyl ether for heat transfer
    Patent number: 5645754
    Abstract: Compositions disclosed include hexafluoropropane and a hydrocarbon having from 1 to 5 carbon atoms or dimethyl ether. These compositions are useful as refrigerants, cleaning agents, expansion agents for polyolefins and polyurethanes, aerosol propellants, refrigerants, 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: December 22, 1994
    Date of Patent: July 8, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Barbara Haviland Minor, Glenn Scott Shealy