Patents by Inventor Richard L. Powell
Richard L. Powell 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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Patent number: 11459497Abstract: Non-ozone depleting and non-flammable refrigerant compositions with GWPs less than 1050 which may replace HFC404A, HFC507 and HFC410A in refrigeration and air-conditioning systems.Type: GrantFiled: November 26, 2018Date of Patent: October 4, 2022Assignee: RPL Holdings LimitedInventors: John Edward Poole, Richard L. Powell
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Publication number: 20200362214Abstract: A refrigerant composition consists essentially of: carbon dioxide 10-35%; an HFO selected from the group consisting of: R1234yf, R1234ze(E) and mixtures thereof 45-85%; and R227ea 3-15% wherein the percentages are by mass and are selected from the ranges quoted to total 100%.Type: ApplicationFiled: November 26, 2018Publication date: November 19, 2020Inventors: John Edward Poole, Richard L. Powell
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Publication number: 20200317974Abstract: Non-ozone depleting and non-flammable refrigerant compositions with GWPs less than 1050 which may replace HFC404A, HFC507 and HFC410A in refrigeration and air-conditioning systems.Type: ApplicationFiled: November 26, 2018Publication date: October 8, 2020Inventors: John Edward Poole, Richard L. Powell
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Patent number: 6629419Abstract: A refrigerant composition comprising a hydrofluorocarbon component including 1,1,1,2-tetrafluoroethane (HFC 134a), the composition further comprising an additive selected from a saturated hydrocarbon or mixture thereof boiling in the range −5 to +70° C.Type: GrantFiled: September 29, 2000Date of Patent: October 7, 2003Assignee: Refringerant Products Ltd.Inventors: Richard L. Powell, John Edward Poole, John Derek Capper, James Victor Thomas
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Patent number: 6606868Abstract: A refrigerant composition comprising a hydrofluorocarbon component including 1,1,1,2-tetrafluoroethane (HCFC 134a), the composition further comprising an additive selected from a saturated hydrocarbon or mixture thereof boiling in the range −5 to +70° C.Type: GrantFiled: October 2, 2000Date of Patent: August 19, 2003Assignee: Refrigerant Products, Ltd.Inventors: Richard L. Powell, John Edward Poole, John Derek Capper, James Victor Thomas
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Patent number: 6604368Abstract: A refrigerant composition comprising 1,1,1,2-tetafluoroethane (R134a) butane and pentane wherein the weights of butane, pentane and R134a are in the range: Pentane and butane 1-5% R134a 99-95%Type: GrantFiled: October 2, 2000Date of Patent: August 12, 2003Assignee: Refrigerant Products, Ltd.Inventors: Richard L. Powell, John Edward Poole, John Derek Capper, James Victor Thomas
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Patent number: 6495060Abstract: A composition comprising (A) 1,1,2,2,3-pentafluoropropane(CF2HCF2CFH2) and (B) at least one hydrofluorocarbon selected from the group consisting of 1,1,1,3,3-pentafluoropropane (CF3CH2CF2H) and 1,1,1,2,2,3,3,4,4-nonafluorobutane (CF3CF2CF2CF2H) is described. The composition is useful as a refrigerant and may be used in chillers as a replacement for refrigerant R-11.Type: GrantFiled: February 10, 2000Date of Patent: December 17, 2002Assignee: Ineos Fluor Holdings LimitedInventors: Richard L. Powell, Stuart Corr, Frederick T. Murphy, James D. Morrison
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Publication number: 20020063234Abstract: A composition comprising (A) 1,1,2,2,3-pentafluoropropane (CF 2 HCF 2 CFH 2) and (B) at least one hydrofluorocarbon selected from the group consisting of 1,1,1,3,3-pentafluoropropane (CF 3 CH 2 CF 2 H) and 1,1,1,2,2,3,3,4,4-nonafluorobutane (CF 3 CF 2 CF 2 C F 2 H) is described. The composition is useful as a refrigerant and may be used in chillers as a replacement for refrigerant R-11.Type: ApplicationFiled: February 10, 2000Publication date: May 30, 2002Inventors: RICHARD L. POWELL, STUART CORR, FREDERICH MURPHY, JAMES D. MORRISON
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Patent number: 6117356Abstract: ?PPA composition is described which comprises carbon dioxide (CO2), at least one hydrofluorocarbon selected from the group consisting of 1,1,1,2tetrafluoroethane (R-134a), 1,1,2,2-tetrafluoroethane (R-134) and 1,1difluoroethane (R-152a), and at least one hydrofluorocarbon selected from the group consisting of 1,1,1,3,3,3-hexafluoropropane (R-236fa) and 1,1,1,2,3,3-hexafluoropropane (R-236ea). The composition may additionally comprise at least one hydrocarbon and can be used as a replacement for refrigerant R-12 in automobile air conditioning and domestic refrigeration systems.Type: GrantFiled: May 7, 1999Date of Patent: September 12, 2000Assignee: Imperial Chemical Industries PLCInventors: Richard L Powell, Stuart Corr, Frederick T Murphy, James D Morrison
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Patent number: 5591032Abstract: A laser weapon simulator apparatus for practice in the shooting of a firearm at a target having reflective material thereon. The apparatus includes a laser beam transmitter that is actuable to emit a laser beam of short duration, a laser beam receiver for collecting and processing a reflected portion of the laser beam, circuitry for detecting the emission of the laser beam by the transmitter, and a visual display. The receiver includes circuitry adapted to produce a "hit" signal upon receiving the reflected portion of the laser beam and the detecting circuitry is adapted to produce a "try" signal in response to the emission of the laser beam. The visual display produces an output "hit" display signal upon the concurrent receipt of a "hit" signal from the receiver and a "try" signal from the detecting circuitry.Type: GrantFiled: March 23, 1995Date of Patent: January 7, 1997Assignee: Richard L. PowellInventors: Richard L. Powell, W. Joe Jacobsen
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Patent number: 5495056Abstract: A process for the production of hydrofluorocarbons, in particular hydrofluoroalkanes such as difluoromethane, which comprises contacting an .alpha.-fluoro-ether, in particular a fluorinated dialkyl ether such as bis(fluoromethyl)ether in the liquid phase with a Lewis acid such as a fluoride of Nb, Sb, B, Ta, Al or Ti.Type: GrantFiled: December 12, 1994Date of Patent: February 27, 1996Assignee: Imperial Chemical Industries PLCInventors: Leslie Burgess, Thomas A. Ryan, Richard L. Powell
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Patent number: 5264462Abstract: A method for the preparation of a polymeric foam which comprises vaporising a fluorine-containing ether in the presence of a foamable polymer or the precursors of a foamable polymer.Type: GrantFiled: March 1, 1993Date of Patent: November 23, 1993Assignee: Imperial Chemical Industries PLCInventors: Roger J. Hodson, Richard L. Powell, David Randall
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Patent number: 5254772Abstract: A process for the preparation of an alkane containing fluorine by contacting a halogenated alkane containing at least one hydrogen atom and at least one halogen atom selected from chlorine, bromine and iodine with a transition metal fluoride selected from osmium hexafluoride, iridium hexafluoride, rhenium hexafluoride, ruthenium pentafluoride, chromium pentafluoride, vanadium pentafluoride, rhenium heptafluoride and uranium hexafluoride, whereby to replace at least one hydrogen atom or at least one chlorine, bromine or iodine atom in said halogenated alkane starting material by a fluorine atom.Use of certain of the defined transition metal fluorides, e.g. OsF.sub.6, IrF.sub.6 and ReF.sub.6 allows the selective replacement of halogen by fluorine, while others, e.g. UF.sub.6, VF.sub.5 and ReF.sub.7 allow selective replacement of hydrogen by fluorine.Type: GrantFiled: March 12, 1992Date of Patent: October 19, 1993Assignee: Imperial Chemical Industries PLCInventors: Wolfgang W. Dukat, John H. Holloway, Eric G. Hope, Matthias Rieland, Paul J. Townson, Richard L. Powell
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Patent number: 5254775Abstract: A process for the preparation of an alkane containing fluorine which process comprises contacting a halogenated alkane containing at least one halogen atom selected from chlorine, bromine and iodine with a transition metal oxide fluoride and replacing at least one chlorine, bromine or iodine atom in said halogenated alkane by a fluorine atom.The transition metal oxide fluoride may be an oxide fluoride of vanadium, molybdenum, tungsten, rhenium or osmium, and the replacement of halogen atom in the starting halogenated alkane is highly selectove where the starting halogenated alkane also contains hydrogen.Type: GrantFiled: March 12, 1992Date of Patent: October 19, 1993Assignee: Imperial Chemical Industries PLCInventors: John H. Holloway, Eric G. Hope, Paul J. Townson, Richard L. Powell
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Patent number: 5113013Abstract: A method for the preparation of a fluorine-containing organic compound which comprises reacting a sulphonyl halide of the formula:RfSO.sub.2 Xwhere Rf represents a fluorinated organic radical and X represents a halogen atom, with a reactive organic halide in the presence of a metal known to complex with fluorinated organic radicals.Type: GrantFiled: April 26, 1990Date of Patent: May 12, 1992Assignee: Imperial Chemical Industries PLCInventors: Richard L. Powell, Charles A. Heaton
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Patent number: 4942203Abstract: A polymer composition comprising (1) a polyether polyol which is a product obtained by the free radical addition of a fluoro-olefin of the general formula: ##STR1## wherein Y represents F or fluoroalkyl and Z represents Cl or F(CF.sub.2)m--wherein m is an integer from 0 to 10 or Y and Z together form a (CH.sub.2)p--chain wherein p represents an integer from 2 to 4, to a polytetramethylene gylcol having a molecular weight in the range 162 to 5000 and (2) at least one acrylic polymer. The composition is useful for coating compositions or for the fabrication of films.Type: GrantFiled: July 11, 1988Date of Patent: July 17, 1990Assignee: Imperial Chemical Industries PlCInventors: John N. Conti-Ramsden, Robert A. Head, Richard L. Powell, Brian D. Young
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Patent number: 4877839Abstract: Composition, optionally curable, comprising a fluorocopolymer admixed with an acrylic polymer, where the fluoropolymer comprises units of a fluorolefine (e.g. TFE) and fluoroallylether (e.g. tetrafluororallylether).Type: GrantFiled: June 8, 1988Date of Patent: October 31, 1989Assignee: Imperial Chemical Industries PLCInventors: John N. Conti-Ramsden, Richard L. Powell, Brian D. Young, Jeffrey Farrar, Debra K. Brown
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Patent number: 4806694Abstract: Fluorine-containing polyols obtained by the free radical addition of a fluoro-olefin having the general formula: ##STR1## wherein Y represents F and Z represents Cl or F(CF.sub.2)n--wherein n is an integer from 0 to 10 or Y and Z together form a --(CF.sub.2)m-- chain wherein m represents an integer from 2 to 4 to a polyol wherein each hydroxyl group is directly attached to a group of the formula:--(CH.sub.2).sub.p O-- (2)wherein p is an integer of at least 4.Type: GrantFiled: September 10, 1987Date of Patent: February 21, 1989Assignee: Imperial Chemical Industries PLCInventors: Richard L. Powell, Brian Young
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Patent number: 4736045Abstract: Fluorinated ether, process for their preparation, and use of the fluorinated ethers as inert fluids.Type: GrantFiled: September 11, 1984Date of Patent: April 5, 1988Inventors: Frederick G. Drakesmith, Richard L. Powell, Richard D. Chambers, Brian Grievson
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Patent number: 4585569Abstract: An absorption heat pump wherein the working fluid is a fluoroalkylamine of the formula: ##STR1## wherein each of X and X.sup.1, independently, represents hydrogen or fluorine,R represents hydrogen or a lower alkyl radical,n represents an integer from 1 to 4, each of m and q represents an integer from 0 to 2,p represents an integer from 0 to 4 provided that p is not zero when X.sup.1 is fluorine, and r represents an integer from 1 to 3, the fluoroalkylamine having a maximum of 6 carbon atomsand the solvent is a phenol.Type: GrantFiled: December 24, 1984Date of Patent: April 29, 1986Assignee: Imperial Chemical Industries PLCInventor: Richard L. Powell