Patents by Inventor Thomas M. McDonald
Thomas M. McDonald 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: 20240131491Abstract: This disclosure relates to a select class of porous adsorbent, metal-organic frameworks (MOFs) capable of adsorbing carbon dioxide, their manufacturing, applications, and methods of use. Specifically, this disclosure relates to the solvo(hydro)thermal synthesis of a family of metal-organic frameworks, and their subsequent processing and transformation into material forms suitable for use in acid gas separations. More specifically, this disclosure relates to the preparation and recovery of MOFs at multiple scales of production, demonstrating the suitability and robustness of the materials thus obtained by the disclosed synthetic route and post-synthetic manipulation employed to tailor the materials for use in a variety of commercial acid gas separation systems, with improved performances, recyclability, and reuse characteristics.Type: ApplicationFiled: October 10, 2022Publication date: April 25, 2024Applicant: MOSAIC MATERIALS, INC.Inventors: Aeri Gosselin, Joel H. Gamoras, Zoey Rose Herm, Thomas M. McDonald, Graham B. Wenz, Lina Zhu
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Patent number: 11845058Abstract: A system and method for acid gas separations using porous frameworks of metal atoms coordinatively bound to polytopic linkers that are functionalized with basic nitrogen ligands that expose nitrogen atoms to the pore volumes forming adsorption sites. Adjacent basic nitrogen ligands on the metal-organic framework can form an ammonium from one ligand and a carbamate from the other. The formation of one ammonium carbamate pair influences the formation of ammonium carbamate on adjacent adsorption sites. Adsorption of acid gas at the adsorption sites form covalently linked aggregates of more than one ammonium carbamate ion pair. The acid gas adsorption isotherm can be tuned to match the step position with the partial pressure of acid gas in the gas mixture stream through manipulation of the metal-ligand bond strength by selection of the ligand, metal and polytopic linker materials.Type: GrantFiled: June 25, 2020Date of Patent: December 19, 2023Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Jeffrey R. Long, Thomas M. McDonald
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Publication number: 20200391179Abstract: A system and method for acid gas separations using porous frameworks of metal atoms coordinatively bound to polytopic linkers that are functionalized with basic nitrogen ligands that expose nitrogen atoms to the pore volumes forming adsorption sites. Adjacent basic nitrogen ligands on the metal-organic framework can form an ammonium from one ligand and a carbamate from the other. The formation of one ammonium carbamate pair influences the formation of ammonium carbamate on adjacent adsorption sites. Adsorption of acid gas at the adsorption sites form covalently linked aggregates of more than one ammonium carbamate ion pair. The acid gas adsorption isotherm can be tuned to match the step position with the partial pressure of acid gas in the gas mixture stream through manipulation of the metal-ligand bond strength by selection of the ligand, metal and polytopic linker materials.Type: ApplicationFiled: June 25, 2020Publication date: December 17, 2020Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Jeffrey R. Long, Thomas M. McDonald
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Patent number: 10722863Abstract: A system and method for acid gas separations using porous frameworks of metal atoms coordinatively bound to polytopic linkers that are functionalized with basic nitrogen ligands that expose nitrogen atoms to the pore volumes forming adsorption sites. Adjacent basic nitrogen ligands on the metal-organic framework can form an ammonium from one ligand and a carbamate from the other. The formation of one ammonium carbamate pair influences the formation of ammonium carbamate on adjacent adsorption sites. Adsorption of acid gas at the adsorption sites form covalently linked aggregates of more than one ammonium carbamate ion pair. The acid gas adsorption isotherm can be tuned to match the step position with the partial pressure of acid gas in the gas mixture stream through manipulation of the metal-ligand bond strength by selection of the ligand, metal and polytopic linker materials.Type: GrantFiled: October 18, 2016Date of Patent: July 28, 2020Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Jeffrey R. Long, Thomas M. McDonald
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Publication number: 20190291074Abstract: Functionalized metal-organic framework adsorbents with ligands containing basic nitrogen groups such as alkylamines and alkyldiamines appended to the metal centers and method of isolating carbon dioxide from a stream of combined gases and carbon dioxide partial pressures below approximately 1 and 1000 mbar. The adsorption material has an isosteric heat of carbon dioxide adsorption of greater than ?60 kJ/mol at zero coverage using a dual-site Langmuir model.Type: ApplicationFiled: November 27, 2018Publication date: September 26, 2019Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Jeffrey R. Long, Thomas M. McDonald, Deanna M. D'Alessandro
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Patent number: 10137430Abstract: Functionalized metal-organic framework adsorbents with ligands containing basic nitrogen groups such as alkylamines and alkyldiamines appended to the metal centers and method of isolating carbon dioxide from a stream of combined gases and carbon dioxide partial pressures below approximately 1 and 1000 mbar. The adsorption material has an isosteric heat of carbon dioxide adsorption of greater than ?60 kJ/mol at zero coverage using a dual-site Langmuir model.Type: GrantFiled: November 21, 2017Date of Patent: November 27, 2018Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Jeffrey R. Long, Thomas M. McDonald, Deanna M. D'Alessandro
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Publication number: 20180272314Abstract: The disclosure provides for diamine-appended metal-organic frameworks (MOFs), methods of making thereof, and methods of use thereof.Type: ApplicationFiled: September 29, 2016Publication date: September 27, 2018Inventors: Jeffrey R. Long, Thomas M. McDonald, Rebecca L. Siegelman, Joshua A. Thompson
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Publication number: 20180169613Abstract: Functionalized metal-organic framework adsorbents with ligands containing basic nitrogen groups such as alkylamines and alkyldiamines appended to the metal centers and method of isolating carbon dioxide from a stream of combined gases and carbon dioxide partial pressures below approximately 1 and 1000 mbar. The adsorption material has an isosteric heat of carbon dioxide adsorption of greater than ?60 kJ/mol at zero coverage using a dual-site Langmuir model.Type: ApplicationFiled: November 21, 2017Publication date: June 21, 2018Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Jeffrey R. Long, Thomas M. McDonald, Deanna M. D'Alessandro
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Patent number: 9987583Abstract: Porous aromatic framework polymers functionalized with Brønsted acid moieties are prepared by polymerization of a three-dimensional organic aryl or heteroaryl monomer and its copolymerization with a second aryl or heteroaryl monomer functionalized with one or more Brønsted acid moiety. The polymers are characterized by a stable three-dimensional structure, which, in exemplary embodiments, includes interpenetrating subunits within one or more domain of the bulk polymer structure. The polymers are of use in methods of adsorbing ammonia and amines and in devices and systems configured for this purpose.Type: GrantFiled: November 21, 2014Date of Patent: June 5, 2018Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Jeffrey Van Humbeck, Jeffrey R. Long, Thomas M. McDonald, Gokhan Barin
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Patent number: 9965479Abstract: In one example embodiment, a method is implemented to relink a data item. The method includes identifying that a data item, referenced by a referencing document, is absent from a data item location for the data item indicated by the referencing document. User preference data, indicating a designated relink location to search for absent data items, is accessed. The relink location is searched for the absent data items. Another example embodiment may include a method to relink a current data item to a replacement data item location by accessing user preference data and searching a relink location for a replacement data item in accordance with the relink location indicated by the user preference data.Type: GrantFiled: September 18, 2008Date of Patent: May 8, 2018Assignee: Adobe Systems IncorporatedInventors: Lance D. Bushore, Michael Easter, Thomas M. McDonald
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Patent number: 9861953Abstract: Functionalized metal-organic framework adsorbents with ligands containing basic nitrogen groups such as alkylamines and alkyldiamines appended to the metal centers and method of isolating carbon dioxide from a stream of combined gases and carbon dioxide partial pressures below approximately 1 and 1000 mbar. The adsorption material has an isosteric heat of carbon dioxide adsorption of greater than ?60 kJ/mol at zero coverage using a dual-site Langmuir model.Type: GrantFiled: December 8, 2016Date of Patent: January 9, 2018Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Jeffrey R. Long, Thomas M. McDonald, Deanna M. D'Alessandro
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Publication number: 20170151549Abstract: Functionalized metal-organic framework adsorbents with ligands containing basic nitrogen groups such as alkylamines and alkyldiamines appended to the metal centers and method of isolating carbon dioxide from a stream of combined gases and carbon dioxide partial pressures below approximately 1 and 1000 mbar. The adsorption material has an isosteric heat of carbon dioxide adsorption of greater than ?60 kJ/mol at zero coverage using a dual-site Langmuir model.Type: ApplicationFiled: December 8, 2016Publication date: June 1, 2017Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Jeffrey R. Long, Thomas M. McDonald, Deanna M. D'Alessandro
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Publication number: 20170087531Abstract: A system and method for acid gas separations using porous frameworks of metal atoms coordinatively bound to polytopic linkers that are functionalized with basic nitrogen ligands that expose nitrogen atoms to the pore volumes forming adsorption sites. Adjacent basic nitrogen ligands on the metal-organic framework can form an ammonium from one ligand and a carbamate from the other. The formation of one ammonium carbamate pair influences the formation of ammonium carbamate on adjacent adsorption sites. Adsorption of acid gas at the adsorption sites form covalently linked aggregates of more than one ammonium carbamate ion pair. The acid gas adsorption isotherm can be tuned to match the step position with the partial pressure of acid gas in the gas mixture stream through manipulation of the metal-ligand bond strength by selection of the ligand, metal and polytopic linker materials.Type: ApplicationFiled: October 18, 2016Publication date: March 30, 2017Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Jeffrey R. Long, Thomas M. McDonald
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Publication number: 20160288041Abstract: Porous aromatic framework polymers functionalized with Brønsted acid moieites are prepared by polymerization of a three-dimensional organic aryl or heteroaryl monomer and its copolymerization with a second aryl or heteroaryl monomer functionalized with one or more Brønsted acid moiety. The polymers are characterized by a stable three-dimensional structure, which, in exemplary embodiments, includes interpenetrating subunits within one or more domain of the bulk polymer structure. The polymers are of use in methods of adsorbing ammonia and amines and in devices and systems configured for this purpose.Type: ApplicationFiled: November 21, 2014Publication date: October 6, 2016Inventors: Jeffrey VAN HUMBECK, Jeffrey R. LONG, Thomas M. MCDONALD, Gokhan BARIN
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Publication number: 20140294709Abstract: Functionalized metal-organic framework adsorbents with ligands containing basic nitrogen groups such as alkylamines and alkyldiamines appended to the metal centers and method of isolating carbon dioxide from a stream of combined gases and carbon dioxide partial pressures below approximately 1 and 1000 mbar. The adsorption material has an isosteric heat of carbon dioxide adsorption of greater than ?60 kJ/mol at zero coverage using a dual-site Langmuir model.Type: ApplicationFiled: March 28, 2014Publication date: October 2, 2014Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Jeffrey R. Long, Thomas M. McDonald, Deanna M. D'Alessandro
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Publication number: 20140032526Abstract: In one example embodiment, a method is implemented to relink a data item. The method includes identifying that a data item, referenced by a referencing document, is absent from a data item location for the data item indicated by the referencing document. User preference data, indicating a designated relink location to search for absent data items, is accessed. The relink location is searched for the absent data items. Another example embodiment may include a method to relink a current data item to a replacement data item location by accessing user preference data and searching a relink location for a replacement data item in accordance with the relink location indicated by the user preference data.Type: ApplicationFiled: September 18, 2008Publication date: January 30, 2014Applicant: Adobe Systems IncorporatedInventors: Lance D. Bushore, Michael Easter, Thomas M. McDonald
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Patent number: 6169491Abstract: A multi-port power monitor is provided which indicates whether power is being supplied to one or more of a plurality of ports connected to external devices. The multi-port power monitor comprises a plurality of serially connected indicators and a plurality of controllable switches which supply power to the individual indicators when one or more of the corresponding ports are active.Type: GrantFiled: September 30, 1999Date of Patent: January 2, 2001Assignee: Hubbell IncorporatedInventor: Thomas M. McDonald
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Patent number: 5894392Abstract: A power distribution unit for supplying temporary branch power has a 240-250 VAC input with input power line conductors L1 and L2, a neutral conductor N, and a ground conductor G. A supervisory circuit checks that the 240-250 VAC input is properly connected to the power distribution unit by requiring that the input voltage exceeds a supervisory circuit threshold voltage substantially greater than 120-125 volts. When that occurs, a contactor is enabled by the supervisory circuit to close first and second contacts therein to pass the 240-250 VAC on lines L1 and L2 therethrough to a 240-250 VAC ground fault interrupter protected circuit breaker outlet. A plurality of 120-125 VAC GFI module outlets are connected across either one of lines L1 and L2 at the output of the supervisory circuit and the neutral conductor N which bypasses the contactor. The supervisory circuit includes a diode bridge circuit connected across power line conductors L1 and L2 to convert a 240-250 VAC input to 240-250 VDC.Type: GrantFiled: August 18, 1997Date of Patent: April 13, 1999Assignee: Hubbell IncorporatedInventor: Thomas M. McDonald
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Patent number: 5813868Abstract: An arrangement for accurately positioning a spring arm of a contact element on a mating component, such as a printed circuit board. More particularly, disclosed is an electrical contact spring arm which incorporates structure for accurately positioning the electrical contact element spring arm structure in slots formed in a printed circuit board or suitable support in a rapid and highly accurately positioned automatic manner.Type: GrantFiled: January 24, 1997Date of Patent: September 29, 1998Assignee: Hubbell IncorporatedInventors: Ward E. Strang, Carol Z. Howard, Thomas M. McDonald
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Patent number: 5661623Abstract: A ground fault circuit interrupter (GFCI) line cord plug utilizes an electronically latched relay, rather than a circuit breaker or other type of mechanical latching device, to interrupt the AC load power when a ground fault condition occurs. In order to reduce the size of the relay and minimize the cost and complexity of the GFCI plug, the fixed and movable relay contact structures are mounted directly to the circuit board which carries the remaining components of the GFCI circuit. In a preferred embodiment, the fixed relay contact structures are integral with the plug blades of the GFCI plug. The movable relay contact structures preferably comprise deflectable spring arms which are preloaded when the relay contacts are in the open position in order to control the contact gap, and which are deflected past the point of contact closure when the relay contacts are in the closed position in order to increase the closing force.Type: GrantFiled: May 22, 1995Date of Patent: August 26, 1997Assignee: Hubbell CorporationInventors: Thomas M. McDonald, Ward E. Strang, Carol Z. Howard