Patents by Inventor Mahmoud H. Abd Elhamid
Mahmoud H. Abd Elhamid 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: 11056737Abstract: Methods and devices for providing an even distribution of waste heat in a vehicular battery pack, including a battery pack, a cold plate, a coolant reservoir, a support structure between the battery pack and the coolant reservoir, and a conformable thermal interface material for filling the space between cells of the battery pack and the coolant reservoir so as to provide thermal contact between the cells and the coolant reservoir for distributing the waste heat. In addition, methods and devices for providing an even distribution of waste heat and structural support in any heat source to heat sink for applications such as small devices such as computer motors.Type: GrantFiled: September 20, 2018Date of Patent: July 6, 2021Assignee: GM Global Technology Operations LLCInventors: Herman K. Phlegm, Craig A. Kollar, Mahmoud H. Abd Elhamid, Timothy J. Fuller, Andrew H. Leutheuser
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Patent number: 10714756Abstract: In certain aspects, electrolytic deposition and electroless displacement deposition methods are provided to form bimetallic structures that may be used as a bipolar current collector in a battery or a substrate for forming graphene sheets. In other aspects, bipolar current collectors for lithium-ion based electrochemical cells are provided. The bimetallic current collector may have an aluminum-containing surface and a continuous copper coating. In other aspects, a flexible substrate may be coated with one or more conductive materials, like nickel, copper, graphene, aluminum, alloys, and combinations thereof. The flexible substrate is folded to form a bipolar current collector. New stack assemblies for lithium-ion based batteries incorporating such bipolar current collectors are also provided that can have cells with a tab-free and/or weld-free design.Type: GrantFiled: November 11, 2016Date of Patent: July 14, 2020Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Fang Dai, Mahmoud H. Abd Elhamid, Anne M. Dailly, Mei Cai
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Patent number: 10665913Abstract: A high voltage battery module includes a plurality of battery cells, a plurality of cooling fins dispersed between the battery cells, and a frame for holding the plurality of battery cells and the plurality of fins. An intumescent layer is proximate to at least one battery module component selected from the battery cells, the plurality of cooling fins, and the frame. The intumescent layer includes sodium silicate having formula Na2SiO3, pentaerythitol, a resin that is cross-linked by melamine, boron nitride particles, and triammonium phosphate.Type: GrantFiled: May 12, 2015Date of Patent: May 26, 2020Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Sami A. Syed, Herman K. Phlegm, Mahmoud H. Abd Elhamid, Edgar P. Calderon
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Patent number: 10337671Abstract: A product may include a storage vessel that may define a first port opening into the storage vessel, and that may define a second port opening into the storage vessel. A first fill conduit may be connected to the storage vessel at the first port. A second fill conduit may be connected to the storage vessel at the second port. A control mechanism may be connected with the first and second fill conduits. A supply conduit may be connected to the control mechanism. The control mechanism may provide a flow path from the supply conduit to at least one of the first or second fill conduits to fill the storage vessel.Type: GrantFiled: September 16, 2016Date of Patent: July 2, 2019Assignee: GM Global Technology Operations LLCInventors: Mahmoud H. Abd Elhamid, Mei Cai, Anne M. Dailly, Thomas A. Yersak
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Publication number: 20190097285Abstract: Methods and devices for providing an even distribution of waste heat in a vehicular battery pack, including a battery pack, a cold plate, a coolant reservoir, a support structure between the battery pack and the coolant reservoir, and a conformable thermal interface material for filling the space between cells of the battery pack and the coolant reservoir so as to provide thermal contact between the cells and the coolant reservoir for distributing the waste heat. In addition, methods and devices for providing an even distribution of waste heat and structural support in any heat source to heat sink for applications such as small devices such as computer motors.Type: ApplicationFiled: September 20, 2018Publication date: March 28, 2019Applicant: GM Global Technology Operations LLCInventors: Herman K. Phlegm, Craig A. Kollar, Mahmoud H. Abd Elhamid, Timothy J. Fuller, Andrew H. Leutheuser
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Patent number: 10116018Abstract: Methods and devices for providing an even distribution of waste heat in a vehicular battery pack, including a battery pack, a cold plate, a coolant reservoir, a support structure between the battery pack and the coolant reservoir, and a conformable thermal interface material for filling the space between cells of the battery pack and the coolant reservoir so as to provide thermal contact between the cells and the coolant reservoir for distributing the waste heat. In addition, methods and devices for providing an even distribution of waste heat and structural support in any heat source to heat sink for applications such as small devices such as computer motors.Type: GrantFiled: January 7, 2016Date of Patent: October 30, 2018Assignee: GM Global Technology Operations LLCInventors: Herman K. Phlegm, Craig A. Kollar, Mahmoud H. Abd Elhamid, Timothy J. Fuller, Andrew H. Leutheuser
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Patent number: 10054267Abstract: An array of pressure vessels for storage of a compressed gas includes at least one Type 4 pressure vessel and at least one Type 1 pressure vessel. The Type 1 pressure vessel is in fluid communication with the at least one Type 4 pressure vessel. A metal wall of the at least one Type 1 pressure vessel has a Type 1 thermal conductance that is greater than a Type 4 thermal conductance of the at least one Type 4 pressure vessel.Type: GrantFiled: May 27, 2016Date of Patent: August 21, 2018Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Thomas A. Yersak, Jerome P. Ortmann, Mahmoud H. Abd Elhamid
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Patent number: 10018307Abstract: A thermal management system for a natural gas tank includes a container, and a cooling mechanism operatively positioned to selectively cool the container. A method for minimizing a loss of natural gas storage during refueling is also disclosed herein. In an example of the method, a cooling mechanism, which is operatively positioned to selectively cool a container of a natural gas storage tank, is initiated prior to a refueling event. This cools the container to a predetermined temperature.Type: GrantFiled: March 24, 2014Date of Patent: July 10, 2018Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Jerome P. Ortmann, Mahmoud H. Abd Elhamid, Arianna T. Morales, Anne M. Dailly, Mei Cai
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Patent number: 9995260Abstract: A bi-fuel vehicle has an Internal Combustion Engine (ICE) to provide motive power to the vehicle by combustion of a liquid fuel and gas-phase fuel. The vehicle has a dual fuel tank including a liquid fuel tank to receive liquid fuel, contain the liquid fuel, and supply the liquid fuel for combustion in the ICE. The vehicle has a pressurizable gas-phase fuel tank defined by a wall. A gas-phase fuel is permeable through the wall. The pressurizable gas-phase fuel tank is to receive the gas-phase fuel, contain the gas-phase fuel, and supply the gas-phase fuel for combustion in the ICE. A shell envelops the pressurizable gas-phase fuel tank and defines an interior space of the liquid fuel tank. The wall is in fluid communication with the interior space. The interior space is to receive the permeated gas-phase fuel.Type: GrantFiled: September 4, 2015Date of Patent: June 12, 2018Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Mahmoud H. Abd Elhamid, Anne M. Dailly, Mei Cai, Herman K. Phlegm, Ronald O. Grover, Jr., Kushal Narayanaswamy
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Patent number: 9987705Abstract: Resistance spot welding of a steel workpiece to an aluminum or an aluminum alloy workpiece can be facilitated by replacing the refractory aluminum oxide-based layer(s) on at least the faying surface of the aluminum or aluminum alloy workpiece with a protective coating that is more conducive to the spot welding process. The protective coating may be a metallic coating or a metal oxide conversion coating. In a preferred embodiment, the protective coating is a coating of zinc, tin, or an oxide of titanium, zirconium, chromium, or silicon.Type: GrantFiled: May 2, 2014Date of Patent: June 5, 2018Assignee: GM Global Technology Operations LLCInventors: David R. Sigler, Blair E. Carlson, Mahmoud H. Abd Elhamid
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Publication number: 20180138513Abstract: In certain aspects, electrolytic deposition and electroless displacement deposition methods are provided to form bimetallic structures that may be used as a bipolar current collector in a battery or a substrate for forming graphene sheets. In other aspects, bipolar current collectors for lithium-ion based electrochemical cells are provided. The bimetallic current collector may have an aluminum-containing surface and a continuous copper coating. In other aspects, a flexible substrate may be coated with one or more conductive materials, like nickel, copper, graphene, aluminum, alloys, and combinations thereof. The flexible substrate is folded to form a bipolar current collector. New stack assemblies for lithium-ion based batteries incorporating such bipolar current collectors are also provided that can have cells with a tab-free and/or weld-free design.Type: ApplicationFiled: November 11, 2016Publication date: May 17, 2018Applicant: GM Global Technology Operations LLCInventors: Fang Dai, Mahmoud H. Abd Elhamid, Anne M. Dailly, Mei Cai
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Publication number: 20180080609Abstract: A product may include a storage vessel that may define a first port opening into the storage vessel, and that may define a second port opening into the storage vessel. A first fill conduit may be connected to the storage vessel at the first port. A second fill conduit may be connected to the storage vessel at the second port. A control mechanism may be connected with the first and second fill conduits. A supply conduit may be connected to the control mechanism. The control mechanism may provide a flow path from the supply conduit to at least one of the first or second fill conduits to fill the storage vessel.Type: ApplicationFiled: September 16, 2016Publication date: March 22, 2018Inventors: MAHMOUD H. ABD ELHAMID, Mei Cai, Anne M. Dailly, Thomas A. Yersak
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Publication number: 20180031740Abstract: Self-cleaning optic apparatuses and automobiles with self-cleaning optic apparatuses are provided. An exemplary self-cleaning optic apparatus includes an optic device for transmitting or receiving light. The optic device is located in a chamber. The self-cleaning optic apparatus further includes a window for transmitting the light. Also, the self-cleaning optic apparatus includes a photocatalytic coating on a surface of the window. Energy emitted from within the chamber activates a photocatalytic reaction in the photocatalytic coating.Type: ApplicationFiled: July 28, 2016Publication date: February 1, 2018Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: MICHAEL D. ALARCON, MAHMOUD H. ABD ELHAMID, ANTHONY L. SMITH, PAUL W. ALEXANDER, ADAM F. GROSS
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Publication number: 20180029465Abstract: A vehicle includes a vehicle platform and a natural gas fueled engine attached to the vehicle platform. The engine provides tractive power to at least one drive wheel. The vehicle includes an enclosure, attachable to the vehicle platform, to contain an array of natural gas storage vessels. The array of natural gas storage vessels is disposed completely within the enclosure. Each storage vessel of the array of natural gas storage vessels is in fluid communication with a single outlet port for selectively extracting the natural gas from the array of natural gas storage vessels. Each storage vessel of the array of natural gas storage vessels is in fluid communication with a single natural gas fill port.Type: ApplicationFiled: July 29, 2016Publication date: February 1, 2018Inventors: Mahmoud H. Abd Elhamid, Anne M. Dailly, Mei Cai
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Patent number: 9878611Abstract: A vehicle includes a vehicle platform and a natural gas fueled engine attached to the vehicle platform. The engine provides tractive power to at least one drive wheel. The vehicle includes an enclosure, attachable to the vehicle platform, to contain an array of natural gas storage vessels. The array of natural gas storage vessels is disposed completely within the enclosure. Each storage vessel of the array of natural gas storage vessels is in fluid communication with a single outlet port for selectively extracting the natural gas from the array of natural gas storage vessels. Each storage vessel of the array of natural gas storage vessels is in fluid communication with a single natural gas fill port.Type: GrantFiled: July 29, 2016Date of Patent: January 30, 2018Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Mahmoud H. Abd Elhamid, Anne M. Dailly, Mei Cai
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Patent number: 9874311Abstract: A composite pressure vessel includes a liner to contain a pressurized fluid and a composite layer formed on at least a portion of an exterior surface of liner. The composite layer includes a third generation advanced high strength steel filament reinforcement embedded in a polymer matrix.Type: GrantFiled: June 13, 2014Date of Patent: January 23, 2018Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Arianna T. Morales, Mahmoud H. Abd Elhamid, Mei Cai, Anne M. Dailly
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Patent number: 9869281Abstract: A bi-fuel vehicle includes an Internal Combustion Engine (ICE) to power the vehicle by combustion of liquid and gas-phase fuels. The vehicle has a dual fuel tank including a pressurizable gas-phase fuel compartment defined by a wall that is permeable by a gas-phase fuel. The gas-phase fuel compartment receives and contains the gas-phase fuel, and supplies the gas-phase fuel for combustion in the ICE. The dual fuel tank includes a liquid fuel compartment to receive and contain liquid fuel, and supply the liquid fuel for combustion in the ICE. A shell envelops the gas-phase fuel compartment, and defines the liquid fuel compartment. An interstitial space between the wall and the shell is in one-way fluid communication with the liquid fuel compartment. The interstitial space receives the permeated gas-phase fuel and channels the permeated gas-phase fuel to the liquid fuel compartment. The dual fuel tank has a vapor recovery system.Type: GrantFiled: September 4, 2015Date of Patent: January 16, 2018Inventors: Mei Cai, Anne M. Dailly, Mahmoud H. Abd Elhamid
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Publication number: 20170343162Abstract: An array of pressure vessels for storage of a compressed gas includes at least one Type 4 pressure vessel and at least one Type 1 pressure vessel. The Type 1 pressure vessel is in fluid communication with the at least one Type 4 pressure vessel. A metal wall of the at least one Type 1 pressure vessel has a Type 1 thermal conductance that is greater than a Type 4 thermal conductance of the at least one Type 4 pressure vessel.Type: ApplicationFiled: May 27, 2016Publication date: November 30, 2017Inventors: Thomas A. Yersak, Jerome P. Ortmann, Mahmoud H. Abd Elhamid
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Patent number: 9746134Abstract: A method of storing and using natural gas (NG) in a vehicle includes selecting a vehicle having an NG tank for fueling an engine of the vehicle. The tank service pressure rating is 3600 psi (pounds per square inch) and an NG adsorbent is in the tank. A first quantity of NG is transferred into the tank from a first source having a first source pressure less than 725 psi. The adsorbent adsorbs a portion of the NG. After transferring the first quantity of NG, the engine is operated until NG is desorbed and consumed by the engine. NG is transferred into the tank from a second source to fill the tank to a second tank pressure of about 3600 psi. The adsorbent adsorbs some of the NG. After transferring the second quantity of the NG, the engine is operated until NG is desorbed and consumed by the engine.Type: GrantFiled: March 24, 2014Date of Patent: August 29, 2017Assignee: GM Global Technology Operations LLCInventors: Anne M. Dailly, Arianna T. Morales, Mahmoud H. Abd Elhamid, Mei Cai
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Publication number: 20170200995Abstract: Methods and devices for providing an even distribution of waste heat in a vehicular battery pack, including a battery pack, a cold plate, a coolant reservoir, a support structure between the battery pack and the coolant reservoir, and a conformable thermal interface material for filling the space between cells of the battery pack and the coolant reservoir so as to provide thermal contact between the cells and the coolant reservoir for distributing the waste heat. In addition, methods and devices for providing an even distribution of waste heat and structural support in any heat source to heat sink for applications such as small devices such as computer motors.Type: ApplicationFiled: January 7, 2016Publication date: July 13, 2017Inventors: Herman K. Phlegm, Craig A. Kollar, Mahmoud H. Abd Elhamid, Timothy J. Fuller, Andrew H. Leutheuser