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| Number | Title | Issue Date |
| 8080185 | Gaseous dielectrics with low global warming potentials A dielectric gaseous compound which exhibits the following properties: a boiling point in the range between about −20° C. to about −273° C.; non-ozone depleting; a GWP less than about 22,200; chemical stability, as measured by a negative standard enthalpy of f... | 12/20/2011 |
| 7985355 | Compositions containing sulfur hexafluoride and uses thereof A method for suppressing an electric arc or corona discharge includes providing a device capable of storing, transmitting, or generating an electrical current or field; and enveloping at least a portion of said device with a dielectric gas consisting essentially of:... | 07/26/2011 |
| 7807074 | Gaseous dielectrics with low global warming potentials A dielectric gaseous compound which exhibits the following properties: a boiling point in the range between about −20° C. to about −273° C.; low ozone depleting; a GWP less than about 22,200; chemical stability, as measured by a negative standard enthalpy of f... | 10/05/2010 |
| 7141188 | Organic compositions The present invention provides a composition comprising: (a) dielectric material; and (b) porogen comprising at least two fused aromatic rings wherein each of the fused aromatic rings has at least one alkyl substituent thereon and a bond exists between at least two ... | 11/28/2006 |
| 7029519 | System and method for gas recycling incorporating gas-insulated electric device A gas recycling system which has a carbon dioxide collecting device for collecting gas containing carbon dioxide from a carbon dioxide source. In the system, at least part of the gas containing sulfur hexafluoride used as an electric insulation medium in a gas-insul... | 04/18/2006 |
| 6673259 | Azeotrope-like compositions of pentafluoropropane Disclosed are azeotrope-like compositions comprising 1,1,1,3,3-pentafluoropropane and at least one C3 or C4 hydrocarbon, and optionally water, said compositions are environmentally desirable for use as refrigerants, aerosol propellan... | 01/06/2004 |
| 6632970 | Catalytic hydrogenation to remove gas from x-ray tube cooling oil The present invention deals with the catalytic hydrogenation of fluid used to cool and dielectrically insulate an x-ray generating device within an x-ray system. According to the present invention, a method and apparatus are provided for hydrogenating flu... | 10/14/2003 |
| 6537380 | Fluorinated solvent compositions containing ozone A homogeneous non-aqueous composition containing a fluorinated solvent, ozone, and optionally a co-solvent and the use of these compositions for cleaning and oxidizing substrates is described.... | 03/25/2003 |
| 6372700 | Fluorinated solvent compositions containing ozone A homogeneous non-aqueous compositions containing a fluorinated solvent, ozone, and optionally a co-solvent and the use of these compositions for cleaning and oxidizing substrates is described.... | 04/16/2002 |
| 5635098 | Azeotropic and azeotrope-like compositions of a hexafluoropropane and C5 hydrocarbon 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 pr... | 06/03/1997 |
| 5484546 | Refrigerant compositions including an acylic fluoroether Refrigerant compositions include mixtures of hexafluorodimethyl ether and cyclopropane, dimethylether or propylene; bis(difluoromethyl) ether and 2,2,3,4,4-pentafluorooxetane; fluoromethyl trifluoromethyl ether and 2,2,4,4,5,5-hexafluoro-1,3-dioxolane, ... | 01/16/1996 |
| 5480572 | Compositions including a three carbon cyclic fluoroether Refrigerant compositions include mixtures of perfluorooxetane and perfluoromethyl ethyl ether or dimethyl ether; 2,2,4,4,5,5-hexafluoro-1,3-dioxolane and cyclopropane or dimethyl ether; 2,2,3,4,4-pentafluorooxetane and difluoromethyl(trifluoromethyl)sulfi... | 01/02/1996 |
| 5433880 | Refrigerant compositions which include a sulfur compound Refrigerant compositions are disclosed which include a first component of bis(trifluoromethyl)sulfide, difluoromethyl(trifluoromethyl)sulfide, pentafluoroethyl sulfur pentafluoride, difluoromethyl sulfur pentafluoride, trifluoromethylsulfur pentafluoride ... | 07/18/1995 |
| 5417871 | Hydrofluorocarbon compositions 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-triflu... | 05/23/1995 |
| 5417870 | Solid, polyether-bases polymeric electrolyte The instant invention provides a solid, polymeric electrolyte in membrane form, constituted by a solid solution of an ionic compound in a crosslinked polyether, characterized in that said polymeric electrolyte is obtained by (1) blending a prepolymer, an ... | 05/23/1995 |
| 5284596 | Substantially constant boiling compositions of 1,1,1,2-tetra-fluoroethane and dimethyl ether Substantially constant boiling compositions of 1,1,1,2-tetrafluoroethane and dimethyl ether and its use as a refrigerant, aerosol propellant and polymer foam blowing agent are disclosed.... | 02/08/1994 |
| 5277834 | Near-azeotropic blends for use as refrigerants Near-Azeotropic blends of: pentafluoroethane and 1,1,1-trifluoroethane with one or more of chlorodifluoromethane, 1,2,2,2-tetrafluoroethane, 1,1,2,2-tetrafluoroethane, 1-chloro-1,1,2,2-tetrafluoroethane, 1-chloro-1,2,2,2-tetrafluoroethane, 1,1,1,2,3,3,3-h... | 01/11/1994 |
| 5262077 | Halocarbon blends Azeotrope-like blends are disclosed comprising effective amounts of 1,1,1,2-tetrafluoroethane (HFC-134a), 1,1-difluoroethane (HFC-152a) and a halocarbon selected from the group consisting of 2-chloro-1,1,1,2-tetrafluoroethane (HCFC-124), 2-chloro-1,1... | 11/16/1993 |
| 5250208 | Ternary azeotropic compositions Azeotropic or azeotrope-like compositions of effective amounts of 1,1,2,2,3,3,4,4,-octofluorobutane; trans-1,2-dichloroethylene, cis-1,2-dichloroethylene, 1,1-dichloroethane, or 1,3-dichloro-1,2,2,3,3-HCFC-225cb; and an alcohol such as methanol, etha... | 10/05/1993 |
| 5248433 | Binary azeotropic mixtures of octafluoropropane and fluoroethane Constant boiling azeotropic or azeotrope-like mixtures of octafluoropropane and fluoroethane are useful as refrigerants, aerosol propellants, heat transfer media, gaseous dielectrics, fire extinguishing agents, expansion agents for polyolefins and polyure... | 09/28/1993 |
| 5236611 | Mixtures of perfluoropropane and trifluoroethane Constant boiling compositions of perfluoropropane and trifluoroethane that are useful as refrigerants, aerosol propellants, heat transfer media, gaseous dielectrics, fire extinguishing agents, expansion agents for polyolefins and polyurethanes and as powe... | 08/17/1993 |
| 5234613 | Substantially constant boiling compositions of difluoromethane and propane Substantially constant boiling compositions that are mixtures of difluoromethane and propane that are useful as refrigerants, aerosol propellants, heat transfer media, gaseous dielectrics, fire extinguishing agents, and expansion agents for polymers.... | 08/10/1993 |
| 5232618 | Substantially constant boiling compositions of difluoromethane and trifluoroethane or perfluoroethane Substantially constant boiling mixtures of difluoromethane and 1,1,1-trifluoroethane or perfluoroethane are useful as refrigerants, aerosol propellants, heat transfer media, gaseous dielectrics, fire extinguishing agents, and expansion agents for polymers... | 08/03/1993 |
| 5221493 | Azeotropic compositions of 1,1,2,2,3,3,4,4-octafluorobutane and alcohols or ketones Azeotropic mixtures of HFC-338pcc and an alcohol such as methanol, ethanol, isopropanol or N-propanol, or a ketone such as acetone, are disclosed that are useful as cleaning agents, refrigerants, aerosol propellants, heat transfer media, gaseous dielectri... | 06/22/1993 |
| 5196137 | Azeotropic composition of 1,1,1,2,3,4,4,5,5,5-decafluoropentane and trans-1,2-dichloroethylene, cis-1,2-dichloroethylene or 1,1-dichlorethane Azeotropic mixtures of 1,1,1,2,3,4,4,5,5,5-decafluoropentane (HFC-43-10mee) and trans-1,2-dichloroethylene, cis-1,2-dichloroethylene or 1,1-dichloroethane are useful as cleaning agents, expansion agents for polyolefins and polyurethanes, refrigerants, aer... | 03/23/1993 |
| 5194170 | Binary azeotropic compositions of 1,1,2,2,3,3,4,4-octafluorobutane and either tran-1,2-dichloroethylene, cis 1,2-dichloroethylene, or 1-1 dichloroethane Azeotropic or azeotrope-like compositions of effective amounts of 1,1,2,2,3,3,4,4-octafluorobutane and trans-1,2-dichloroethylene; cis-1,2-dichloroethylene; or 1,1-dichloroethane to form an azeotropic or azeotrope-like composition are disclosed that are u... | 03/16/1993 |
| 5171482 | Silicone composition which does not cause faulty conduction at electrical contacts, and method for preventing conduction faults A silicone composition containing a carboxylic acid amide which develops a vapor pressure during its use in an electrical device prevents faulty conduction at electrical contacts which are caused by silicone vapor. Electrical devices made by bringing the ... | 12/15/1992 |
| 4935165 | Method for preventing the poor conduction at electrical switch contacts which is caused by organopolysiloxane gas The poor electrical conduction at an electrical switch contact caused by organopolysiloxane gas can be prevented by providing that a nitrogenous base gas be simultaneously present with the organopolysiloxane gas. Nitrogeneous base gases can be aliphatic a... | 06/19/1990 |
| 4565901 | Gas-insulated electric device A gas-insulated electric device comprising an electric conductor disposed in a sealed vessel filled with an insulating gas, the conductor being supported by a solid insulating member. The insulating gas is a nitrilic fluorocarbon compound or a mixture of ... | 01/21/1986 |
| 4547316 | Insulating gas for electric device An insulating gas for an electric device which comprises pentafluoropropionitrile or a mixture of pentafluoropropionitrile and sulfur hexafluoride and at least one nitrite ester selected from methyl nitrite, ethyl nitrite, propyl nitrite, butyl nitrite, a... | 10/15/1985 |
| 4440971 | Supersaturated vapor dielectrics Disclosed is an apparatus which is resistant to electrical breakdown consisting of a chamber containing electrodes separated by dielectric gas supersaturated with the vapor from a dielectric liquid.... | 04/03/1984 |
| 4410456 | Additives for enhancing corona stabilization in electronegative gases Corona stabilization in electronegative gases such as SF6 is enhanced through the use of additives exhibiting ionization potentials which lie in the range in which the photon absorption characteristic of the electronegative insulating gas, as a... | 10/18/1983 |
| 4343029 | Electrical device containing an aryl sulfide dielectric liquid Capacitors and similar electrical devices containing a dielectric liquid have superior properties when the dielectric liquid is a polyalkylated diphenyl sulfide. Particularly good dielectric properties are provided when the liquid consists essentially of ... | 08/03/1982 |
| 4330439 | Electric device comprising impregnated insulating materials and electric elements The electric device according to the present invention has as its constituents the insulating materials and elements comprising films of synthetic resin, for instance, polypropylene, impregnated with 1-phenyl-2-ethylphenylethane and/or 1-phenyl-2-isopropy... | 05/18/1982 |
| 4324933 | Electrical insulating oil compositions An electrical insulating oil composition consisting essentially of 50-85 parts by weight of a paraffinic or mixed base crude oil-derived electrical insulating oil, 50-15 parts by weight of a naphthenic base crude oil-derived electrical insulating oil, and... | 04/13/1982 |
| 4320035 | Dielectric gas-vapor and vapor-vapor mixtures A dielectric fluid composition with high electrical strength characterized by a gas mixed with the vapor from a first fluid having a high vapor pressure at a low temperature and the vapor from a second fluid having a low vapor pressure at a low temperatur... | 03/16/1982 |
| 4296003 | Atomized dielectric fluid composition with high electrical strength A dielectric fluid composition with high electrical strength characterized by a first fluid selected from the group consisting of electronegative gases, such as SF6, CCl2 F2, C2 F6, CF3 Cl, ... | 10/20/1981 |
| 4288651 | Dielectric gas selected from binary mixtures of SF6, SO2 and CF3 CFCF2 Dielectric gas mixture including a binary pair of gases with electric strengths in uniform or quasi-uniform fields which are higher than that for either component of the gases alone. Such binary pairs include (a) SF6 and CF3 CFCF | 09/08/1981 |
| 4288772 | Dielectric liquid impregnated with gases for use in transformers A flame retardant dielectric coolant for power transformers used in restricted environments consisting of a mixture of an electronegative gas dissolved in silicone fluid for providing improved 60 hertz breakdown voltage resistance to the fluid.... | 09/08/1981 |
| 4275260 | Dielectric gas mixture containing trifluoronitromethane and/or trifluoromethanesulfonyl fluoride A relatively low-cost dielectric gas mixture including a halogenated hydrocarbon such as CC12 F2, subject to carbonization in the presence of an electrical discharge, and a minor portion of CF3 NO2 or CF3 | 06/23/1981 |
