Patents by Inventor David G. Davies
David G. Davies 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: 20240077021Abstract: A thermal management system for an aircraft includes a first gas turbine engine, one or more first electric machines rotatably coupled to the first gas turbine engine, a first thermal bus, and a first heat exchanger. Waste heat energy generated by at least one first gas turbine engine, and first electric machine, transfers to the first heat transfer fluid. The first heat exchanger directs a first proportion of the first heat transfer fluid through a first heat dissipation portion wherein a first proportion of the waste heat energy transfers to a first dissipation medium dependent on the first dissipation medium temperature and mass flow rate. The first heat exchanger directs a second proportion of the first heat transfer fluid through a second heat dissipation portion wherein the second proportion of waste heat energy transfers to a second dissipation medium dependent on the second dissipation medium temperature and mass flow rate.Type: ApplicationFiled: August 14, 2023Publication date: March 7, 2024Applicant: ROLLS-ROYCE plcInventors: Paul R DAVIES, Richard G MOCHRIE, David A JONES
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Publication number: 20240077022Abstract: A thermal management system for an aircraft comprises a first gas turbine engine, one or more first electric machines rotatably coupled to the first gas turbine engine, a first thermal bus, a first heat exchanger, and one or more first ancillary systems. The first thermal bus comprises a first heat transfer fluid, with the first heat transfer fluid being in fluid communication, in a closed loop flow sequence, between the or each first electric machine, the first gas turbine engine, the first heat exchanger, and the or each first ancillary system. Waste heat energy generated by at least one of the first gas turbine engine, the or each first electric machine, and the or each first ancillary system, is transferred to the first heat transfer fluid. The first heat exchanger is configured to transfer the waste heat energy from the first heat transfer fluid to a dissipation medium.Type: ApplicationFiled: August 14, 2023Publication date: March 7, 2024Applicant: ROLLS-ROYCE plcInventors: Paul R. DAVIES, David A. JONES, Richard G. MOCHRIE
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Publication number: 20240076052Abstract: A thermal management system for an aircraft includes a first gas turbine engine, one or more first electric machines, a first thermal bus, and a first heat exchanger. The first thermal bus includes a first heat transfer fluid in a closed loop flow sequence, between the first gas turbine engine, the or each first electric machine, and the first heat exchanger. Waste heat energy generated by at least one of the first gas turbine engine, and the or each first electric machine, is transferred to first heat transfer fluid. When airspeed of aircraft is less than Mn0.6, the first heat exchanger transfers the waste heat energy from the first heat transfer fluid to a first dissipation medium. When the airspeed of the aircraft is greater than Mn0.6, the first heat exchanger is configured to transfer the waste heat energy from the first heat transfer fluid to a second dissipation medium.Type: ApplicationFiled: August 14, 2023Publication date: March 7, 2024Applicant: ROLLS-ROYCE plcInventors: Paul R DAVIES, David A JONES, Richard G MOCHRIE
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Publication number: 20240077025Abstract: A thermal management system for an aircraft comprises a first gas turbine engine, a first thermal bus, a first heat exchanger, and a chiller. The first thermal bus comprises a first heat transfer fluid, with the first heat transfer fluid being in fluid communication, in a closed loop flow sequence, between the first gas turbine engine, the first heat exchanger, and the chiller. Waste heat energy generated by the first gas turbine engine, is transferred to the first heat transfer fluid. The chiller is configured to lower a temperature of the first heat transfer fluid prior to the first heat transfer fluid being circulated through the gas turbine engine. The first heat is exchanger is configured to transfer the waste heat energy from the first heat transfer fluid to a dissipation medium.Type: ApplicationFiled: August 14, 2023Publication date: March 7, 2024Applicant: ROLLS-ROYCE PLCInventors: Paul R DAVIES, David A JONES, Alexander T JOYCE, Richard G MOCHRIE
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Patent number: 11452291Abstract: One aspect of the present invention is directed to a composition. The composition includes a dispersion inducer comprising: H3C—(CH2)n—CHmCHmR, where is a single or double carbon-carbon bond, m is 1 or 2, n is 2 to 15, and R is a carboxylic acid, a salt, an ester, or an amide, where the ester or amide is an isostere or biostere of the carboxylic acid. The composition additionally contains an additive component selected from one or more of the group consisting of biocides, surfactants, antibiotics, antiseptics, detergents, chelating agents, virulence factor inhibitors, gels, polymers, pastes, edible products, and chewable products. The composition is formulated so that when it is contacted with a biofilm produced by a microorganism, where the biofilm comprises a matrix and microorganism on a surface, the dispersion inducer selectively acts on the microorganism and has a suitable biological response without a required direct effect on the matrix to disperse the biofilm.Type: GrantFiled: May 13, 2020Date of Patent: September 27, 2022Assignee: The Research Foundation for The State UniversityInventor: David G. Davies
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Publication number: 20220240503Abstract: The invention provides a method of microbial control in water comprising adding to the water one or more bromine-based biocide(s) and cis-2-decenoic acid or a salt thereof. Compositions in the form of liquid concentrates comprising bromine-based biocides and cis-2-decenoic acid or a salt thereof are also described.Type: ApplicationFiled: May 27, 2020Publication date: August 4, 2022Applicants: BROMINE COMPOUNDS LTD., THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORKInventors: Michal RODENSKY, Chen ZOLKOV, David G. DAVIES
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Publication number: 20200275653Abstract: One aspect of the present invention is directed to a composition. The composition includes a dispersion inducer comprising: H3C—(CH2)n—CHmCHmR, where is a single or double carbon-carbon bond, m is 1 or 2, n is 2 to 15, and R is a carboxylic acid, a salt, an ester, or an amide, where the ester or amide is an isostere or biostere of the carboxylic acid. The composition additionally contains an additive component selected from one or more of the group consisting of biocides, surfactants, antibiotics, antiseptics, detergents, chelating agents, virulence factor inhibitors, gels, polymers, pastes, edible products, and chewable products. The composition is formulated so that when it is contacted with a biofilm produced by a microorganism, where the biofilm comprises a matrix and microorganism on a surface, the dispersion inducer selectively acts on the microorganism and has a suitable biological response without a required direct effect on the matrix to disperse the biofilm.Type: ApplicationFiled: May 13, 2020Publication date: September 3, 2020Inventor: David G. Davies
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Patent number: 10653140Abstract: One aspect of the present invention is directed to a composition. The composition includes a dispersion inducer comprising: H3C—(CH2)n—CHmCHmR, where is a single or double carbon-carbon bond, m is 1 or 2, n is 2 to 15, and R is a carboxylic acid, a salt, an ester, or an amide, where the ester or amide is an isostere or biostere of the carboxylic acid. The composition additionally contains an additive component selected from one or more of the group consisting of biocides, surfactants, antibiotics, antiseptics, detergents, chelating agents, virulence factor inhibitors, gels, polymers, pastes, edible products, and chewable products. The composition is formulated so that when it is contacted with a biofilm produced by a microorganism, where the biofilm comprises a matrix and microorganism on a surface, the dispersion inducer selectively acts on the microorganism and has a suitable biological response without a required direct effect on the matrix to disperse the biofilm.Type: GrantFiled: July 18, 2013Date of Patent: May 19, 2020Assignee: The Research Foundation for The State University of New YorkInventor: David G. Davies
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Publication number: 20130302390Abstract: One aspect of the present invention is directed to a composition. The composition includes a dispersion inducer comprising: H3C—(CH2)n—CHmCHmR, where is a single or double carbon-carbon bond, m is 1 or 2, n is 2 to 15, and R is a carboxylic acid, a salt, an ester, or an amide, where the ester or amide is an isostere or biostere of the carboxylic acid. The composition additionally contains an additive component selected from one or more of the group consisting of biocides, surfactants, antibiotics, antiseptics, detergents, chelating agents, virulence factor inhibitors, gels, polymers, pastes, edible products, and chewable products. The composition is formulated so that when it is contacted with a biofilm produced by a microorganism, where the biofilm comprises a matrix and microorganism on a surface, the dispersion inducer selectively acts on the microorganism and has a suitable biological response without a required direct effect on the matrix to disperse the biofilm.Type: ApplicationFiled: July 18, 2013Publication date: November 14, 2013Inventor: David G. DAVIES
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Patent number: 8513305Abstract: One aspect of the present invention is directed to a composition. The composition includes a dispersion inducer comprising: H3C—(CH2)n—CHmCHmR, where is a single or double carbon-carbon bond, m is 1 or 2, n is 2 to 15, and R is a carboxylic acid, a salt, an ester, or an amide, where the ester or amide is an isostere or biostere of the carboxylic acid. The composition additionally contains an additive component selected from one or more of the group consisting of biocides, surfactants, antibiotics, antiseptics, detergents, chelating agents, virulence factor inhibitors, gels, polymers, pastes, edible products, and chewable products. The composition is formulated so that when it is contacted with a biofilm produced by a microorganism, where the biofilm comprises a matrix and microorganism on a surface, the dispersion inducer selectively acts on the microorganism and has a suitable biological response without a required direct effect on the matrix to disperse the biofilm.Type: GrantFiled: May 14, 2008Date of Patent: August 20, 2013Assignee: Research Foundation of State University of New YorkInventor: David G. Davies
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Publication number: 20080317815Abstract: One aspect of the present invention is directed to a composition. The composition includes a dispersion inducer comprising: H3C—(CH2)n—CHmCHmR, where is a single or double carbon-carbon bond, m is 1 or 2, n is 2 to 15, and R is a carboxylic acid, a salt, an ester, or an amide, where the ester or amide is an isostere or biostere of the carboxylic acid. The composition additionally contains an additive component selected from one or more of the group consisting of biocides, surfactants, antibiotics, antiseptics, detergents, chelating agents, virulence factor inhibitors, gels, polymers, pastes, edible products, and chewable products. The composition is formulated so that when it is contacted with a biofilm produced by a microorganism, where the biofilm comprises a matrix and microorganism on a surface, the dispersion inducer selectively acts on the microorganism and has a suitable biological response without a required direct effect on the matrix to disperse the biofilm.Type: ApplicationFiled: May 14, 2008Publication date: December 25, 2008Applicant: Research Foundation of State University of New YorkInventor: David G. Davies
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Patent number: 7094394Abstract: A method of cleaning or protecting surfaces by treatment with compositions comprising N-(3-oxododecanoyl)-L-homoserine lactone (OdDHL) blocking compounds and/or N-butyryl-L-homoserine lactone (BHL) analogs, either in combination or separately.Type: GrantFiled: July 1, 2002Date of Patent: August 22, 2006Assignees: Montana State University, University of Rochester, University of Iowa Research FoundationInventors: David G. Davies, John William Costerton
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Publication number: 20030171421Abstract: A method of cleaning or protecting surfaces by treatment with compositions comprising N-(3-oxododecanoyl)-L-homoserine lactone (OdDHL) blocking compounds and/or N-butyryl-L-homoserine lactone (BHL) analogs, either in combination or separately.Type: ApplicationFiled: July 1, 2002Publication date: September 11, 2003Inventors: David G. Davies, John W. Costerton
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Patent number: 6455031Abstract: A method of cleaning or protecting surfaces by treatment with compositions comprising N-(3-oxododecanoyl)-L-homoserine lactone (OdDHL) blocking compounds and/or N-butyryl-L-homoserine lactone (BHL) analogs, either in combination or separately.Type: GrantFiled: June 9, 1999Date of Patent: September 24, 2002Inventors: David G Davies, John W Costerton
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Patent number: 4521261Abstract: A double base propellant composition having well-platonized ballistics at low burning rates consists of nitroglycerine (NG), nitrocellulose (NC) at least one lead compound and at least one copper (II) salt of an aliphatic dicarboxylic acid. The copper salt preferably comprises copper succinate, and the lead compound may include any of those known as ballistic modifiers in the propellants art. A preferred composition, having a platonized burning rate of 2.3 mm s.sup.-1 at a chamber pressure of 2-3 MPa, comprises by weight 35.1% NC (12.6% nitrogen), 41.6% NG, 8.3% triacetin, 10.7% sucrose octa-acetate, 0.3% 2-nitrodiphenylamine, 1.2% p-nitromethylaniline, 1.0% copper (II) succinate and 1.8% lead acetophthalate.Type: GrantFiled: August 8, 1984Date of Patent: June 4, 1985Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern IrelandInventor: David G. Davies