Patents by Inventor Peter G. Madden
Peter G. Madden 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: 12240614Abstract: A power system for an aircraft includes one or more gas turbine engines arranged to burn a fuel so as to provide power to the aircraft; a plurality of fuel tanks each arranged to contain a fuel to be used to provide power to the aircraft; and a fuel manager. At least two of the fuel tanks contain different fuels, which have different proportions of a sustainable aviation fuel. The fuel manager is arranged to store information on the fuel contained in each fuel tank; and to control fuel supply so as to select a specific fuel accordingly to power at least the majority of operations on the ground. The fuel manager may additionally identify which tank contains the fuel with the highest proportion of a sustainable aviation fuel; and that fuel may be used to power at least the majority of operations on the ground.Type: GrantFiled: June 13, 2023Date of Patent: March 4, 2025Assignee: ROLLS-ROYCE plcInventors: Peter Swann, Craig W Bemment, Alastair G Hobday, Benjamin J Keeler, Christopher P Madden
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Patent number: 10483832Abstract: An electric drive system including: a rotary motor system including a hub assembly, a first rotating assembly, a second rotating assembly, and a third rotating assembly, wherein the hub assembly defines a rotational axis about which the first rotating assembly, the second rotating assembly, and the third rotating assembly are coaxially aligned and are capable of independent rotational movement independent of each other; a multi-bar linkage mechanism connected to each of the first and third rotating assemblies and connected to the hub assembly and constraining movement of the hub assembly so that the rotational axis of the hub assembly moves along a defined path that is in a transverse direction relative to the rotational axis and wherein the multi-bar linkage mechanism causes the rotational axis of the hub assembly to translate along the defined path in response to relative rotation of the first rotating assembly and the third rotating assembly with respect to each other.Type: GrantFiled: September 12, 2017Date of Patent: November 19, 2019Assignee: Indigo Technologies, Inc.Inventors: Ian W. Hunter, Timothy A. Fofonoff, Peter G. Madden, Dean Ljubicic, Thomas Moriarty, Scott T. Purchase
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Publication number: 20180072120Abstract: An electric drive system including: a rotary motor system including a hub assembly, a first rotating assembly, a second rotating assembly, and a third rotating assembly, wherein the hub assembly defines a rotational axis about which the first rotating assembly, the second rotating assembly, and the third rotating assembly are coaxially aligned and are capable of independent rotational movement independent of each other; a multi-bar linkage mechanism connected to each of the first and third rotating assemblies and connected to the hub assembly and constraining movement of the hub assembly so that the rotational axis of the hub assembly moves along a defined path that is in a transverse direction relative to the rotational axis and wherein the multi-bar linkage mechanism causes the rotational axis of the hub assembly to translate along the defined path in response to relative rotation of the first rotating assembly and the third rotating assembly with respect to each other.Type: ApplicationFiled: September 12, 2017Publication date: March 15, 2018Inventors: Ian W. Hunter, Timothy A. Fofonoff, Peter G. Madden, Dean Ljubicic
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Patent number: 9815072Abstract: The present inventions relate to the formation of a thin polymer film on a substrate. Apparatus is described for transforming a solid polymer resist into an aerosol of small particles, electrostatically charging and depositing the particles onto a substrate, and flowing the particles into a continuous layer. Apparatus is further described for transforming solid resist into an aerosol of small particles by heating the resist to form a low viscosity liquid such as is compatible with nebulization and applying the techniques of jet or impact nebulization and aerosol particle sizing to form the aerosol. A method is further described of using ionized gas to confer charge onto the aerosol particles and using a progression of charging devices establish an electric field directing the flow of charged particles to the substrate. The progression of charging devices and associated apparatus results in high collection efficiency for the aerosol particles.Type: GrantFiled: October 12, 2012Date of Patent: November 14, 2017Assignee: 1366 Technologies Inc.Inventors: Guy M. Danner, Vladimir S. Tarasov, Peter E. Kane, Peter G. Madden, Holly G. Gates, Emanuel M. Sachs
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Patent number: 9810552Abstract: A method for determining a position of a magnet assembly relative to an array of inductive elements arranged adjacent to a magnetically permeable material, the method involving: measuring electrical characteristics of each of one or more inductive elements of the array of inductive elements; and from information derived from the measured electrical characteristics of the one or more inductive elements of the array of inductive elements, determining the position of the magnet assembly relative to the array of inductive elements.Type: GrantFiled: April 16, 2015Date of Patent: November 7, 2017Assignee: Nucleus Scientific Inc.Inventors: Ian W. Hunter, George C. Whitfield, Peter G. Madden
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Publication number: 20150300843Abstract: A method for determining a position of a magnet assembly relative to an array of inductive elements arranged adjacent to a magnetically permeable material, the method involving: measuring electrical characteristics of each of one or more inductive elements of the array of inductive elements; and from information derived from the measured electrical characteristics of the one or more inductive elements of the array of inductive elements, determining the position of the magnet assembly relative to the array of inductive elements.Type: ApplicationFiled: April 16, 2015Publication date: October 22, 2015Inventors: Ian W. Hunter, George C. Whitfield, Peter G. Madden
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Publication number: 20140255615Abstract: The present inventions relate to the formation of a thin polymer film on a substrate. Apparatus is described for transforming a solid polymer resist into an aerosol of small particles, electrostatically charging and depositing the particles onto a substrate, and flowing the particles into a continuous layer. Apparatus is further described for transforming solid resist into an aerosol of small particles by heating the resist to form a low viscosity liquid such as is compatible with nebulization and applying the techniques of jet or impact nebulization and aerosol particle sizing to form the aerosol. A method is further described of using ionized gas to confer charge onto the aerosol particles and using a progression of charging devices establish an electric field directing the flow of charged particles to the substrate. The progression of charging devices and associated apparatus results in high collection efficiency for the aerosol particles.Type: ApplicationFiled: October 12, 2012Publication date: September 11, 2014Inventors: Guy M. Danner, Vladimir S. Tarasov, Peter E. Kane, Peter G. Madden, Holly G. Gates, Emanuel M. Sachs
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Publication number: 20110028676Abstract: The synthesis of thiophene based conducting polymer molecular actuators, exhibiting electrically triggered molecular conformational transitions is reported. Actuation is believed to be the result of conformational rearrangement of the polymer backbone at the molecular level, not simply ion intercalation in the bulk polymer chain upon electrochemical activation. Molecular actuation results from ?-? stacking of thiophene oligomers upon oxidation, producing a reversible molecular displacement that leads to surprising material properties, such as electrically controllable porosity and large strains. The existence of active molecular conformational changes is supported by in situ electrochemical data. Single molecule techniques have been used to characterize the molecular actuators.Type: ApplicationFiled: February 8, 2010Publication date: February 3, 2011Applicants: Massachusetts Institute of Technology, Secreatary of the Navy, United StatesInventors: Patrick A. Anquetil, Ian W. Hunter, John D. Madden, Peter G. Madden, Anthony E. Pullen, Timothy M. Swager, Bing Xu, Hsiao-hua Yu
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Patent number: 7658868Abstract: The synthesis of thiophene based conducting polymer molecular actuators, exhibiting electrically triggered molecular conformational transitions is reported. Actuation is believed to be the result of conformational rearrangement of the polymer backbone at the molecular level, not simply ion intercalation in the bulk polymer chain upon electrochemical activation. Molecular actuation results from ?-? stacking of thiophene oligomers upon oxidation, producing a reversible molecular displacement that leads to surprising material properties, such as electrically controllable porosity and large strains. The existence of active molecular conformational changes is supported by in situ electrochemical data. Single molecule techniques have been used to characterize the molecular actuators.Type: GrantFiled: November 21, 2006Date of Patent: February 9, 2010Assignees: Massachusetts Institute of Technology, The United States of America as represented by the Secretary of the NavyInventors: Patrick A Anquetil, Ian W Hunter, John D Madden, Peter G Madden, Anthony E Pullen, Timothy M Swager, Bing Xu, Hsiao-Hua Yu
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Patent number: 7138075Abstract: The synthesis of thiophene based conducting polymer molecular actuators, exhibiting electrically triggered molecular conformational transitions is reported. Actuation is believed to be the result of conformational rearrangement of the polymer backbone at the molecular level, not simply ion intercalation in the bulk polymer chain upon electrochemical activation. Molecular actuation results from ?—? stacking of thiophene oligomers upon oxidation, producing a reversible molecular displacement that leads to surprising material properties, such as electrically controllable porosity and large strains. The existence of active molecular conformational changes is supported by in situ electrochemical data. Single molecule techniques have been used to characterize the molecular actuators.Type: GrantFiled: March 19, 2003Date of Patent: November 21, 2006Assignee: Massachusetts Institute of TechnologyInventors: Patrick A. Anquetil, Ian W. Hunter, John D. Madden, Peter G. Madden, Anthony E. Pullen, Timothy M. Swager, Bing Xu, Hsiao-hua Yu
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Publication number: 20040007695Abstract: The synthesis of thiophene based conducting polymer molecular actuators, exhibiting electrically triggered molecular conformational transitions is reported. Actuation is believed to be the result of conformational rearrangement of the polymer backbone at the molecular level, not simply ion intercalation in the bulk polymer chain upon electrochemical activation. Molecular actuation results from &pgr;-&pgr; stacking of thiophene oligomers upon oxidation, producing a reversible molecular displacement that leads to surprising material properties, such as electrically controllable porosity and large strains. The existence of active molecular conformational changes is supported by in situ electrochemical data. Single molecule techniques have been used to characterize the molecular actuators.Type: ApplicationFiled: March 19, 2003Publication date: January 15, 2004Inventors: Patrick A. Anquetil, Ian W. Hunter, John D. Madden, Peter G. Madden, Anthony E. Pullen, Timothy M. Swager, Bing Xu, Hsiao-hua Yu
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Patent number: 5487768Abstract: A minienvironment provides a cleanroom-type environment by maintaining an ultra-filtered clean-air material handling area to minimize or eliminate the exposure of materials to harmful microcontaminants. The minienvironment includes an air flow generator assembly for directing air external to the minienvironment through a filter assembly into a material handling area. A diffuser redirects this filtered air flow over the material handling area in more than one direction to minimize or eliminate the exposure of any surfaces of materials in the handling area to harmful microcontaminants. The resulting continual outward flow of ultra-filtered air over this handling area prevents harmful microcontaminants in the air external to the minienvironment from directly entering the handling area and flushes out any harmful microcontaminants generated within the handling area.Type: GrantFiled: January 31, 1994Date of Patent: January 30, 1996Inventors: Donald J. Zytka, Peter G. Madden, Robert B. Eglinton