Patents by Inventor Hesham A. Ezzat

Hesham A. Ezzat 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).

  • Patent number: 11881322
    Abstract: This patent document relates to systems, structures, devices, and fabrication processes for ceramic matrix composites suitable for use in a nuclear reactor environment and other applications requiring materials that can withstand high temperatures and/or highly corrosive environments. In one exemplary aspect, a method of joining and sealing ceramic structures is disclosed. The method comprises forming a joint of a ceramic structure and an end plug using a sealing material, wherein the end plug has a hole that goes through a top surface and a bottom surface of the end plug; filling the ceramic structure with a desired gas composition through the hole; heating a material into a molten form using a heat source; and directing the material into the hole, wherein the material solidifies to seal the end plug.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: January 23, 2024
    Assignee: General Atomics
    Inventors: Jonathan David Sheeder, Jiping Zhang, Christian Peter Deck, Hesham Ezzat Khalifa, Robert Warren Stemke, Brian Stephen Austin, Gokul Vasudevamurthy, Carlos Bacalski, Eric Song, Christina Allyssa Back
  • Publication number: 20210166825
    Abstract: This patent document relates to systems, structures, devices, and fabrication processes for ceramic matrix composites suitable for use in a nuclear reactor environment and other applications requiring materials that can withstand high temperatures and/or highly corrosive environments. In one exemplary aspect, a method of joining and sealing ceramic structures is disclosed. The method comprises forming a joint of a ceramic structure and an end plug using a sealing material, wherein the end plug has a hole that goes through a top surface and a bottom surface of the end plug; filling the ceramic structure with a desired gas composition through the hole; heating a material into a molten form using a heat source; and directing the material into the hole, wherein the material solidifies to seal the end plug.
    Type: Application
    Filed: January 20, 2021
    Publication date: June 3, 2021
    Inventors: Jonathan David Sheeder, Jiping Zhang, Christian Peter Deck, Hesham Ezzat Khalifa, Robert Warren Stemke, Brian Stephen Austin, Gokul Vasudevamurthy, Carlos Bacalski, Eric Song, Christina Allyssa Back
  • Patent number: 10478916
    Abstract: A system, apparatus, or method for joining components is provided. The system applies force along an axis, with a friction pin, to a first substrate, such as with a joiner or joining apparatus. The system also frictionally melts a portion of the first substrate adjacent the friction pin by rotating the friction pin about the axis at a first speed within the first substrate. The system also applies force to the second substrate along the axis and frictionally melts a portion of the second substrate adjacent the friction pin by rotating the friction pin at a second speed within the second substrate. The system embeds a portion of the friction pin within the first substrate and the second substrate. In some configurations, the first speed and the second speed are substantially equivalent. In other configurations, the first speed is different from the second speed.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: November 19, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Joseph M. Polewarczyk, Hesham A. Ezzat
  • Publication number: 20190126384
    Abstract: A system, apparatus, or method for joining components is provided. The system applies force along an axis, with a friction pin, to a first substrate, such as with a joiner or joining apparatus. The system also frictionally melts a portion of the first substrate adjacent the friction pin by rotating the friction pin about the axis at a first speed within the first substrate. The system also applies force to the second substrate along the axis and frictionally melts a portion of the second substrate adjacent the friction pin by rotating the friction pin at a second speed within the second substrate. The system embeds a portion of the friction pin within the first substrate and the second substrate. In some configurations, the first speed and the second speed are substantially equivalent. In other configurations, the first speed is different from the second speed.
    Type: Application
    Filed: November 2, 2017
    Publication date: May 2, 2019
    Applicant: GM Global Technology Operations LLC
    Inventors: Joseph M. Polewarczyk, Hesham A. Ezzat
  • Patent number: 10011081
    Abstract: A number of variations may include a product that may include a part that may include a composite material that may include a plurality of tubes that may include a plurality of fibers arranged in a generally tubular shape and having at least two sizings temporarily capping the ends of the plurality of tubes and containing a resin.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: July 3, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: Bhavesh Shah, Joseph M. Polewarczyk, Hesham A. Ezzat
  • Patent number: 9662811
    Abstract: A number of variations may include a method that may include providing a composite material that may include nano-tubes that may include pressure activated resin, forming the composite material such that the resin within the nano-tubes may begin to cure, holding the composite material in a formed state, removing the composite material from the formed state, and curing the composite material.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: May 30, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Hesham A. Ezzat, Joseph M. Polewarczyk, Bhavesh Shah
  • Publication number: 20160271899
    Abstract: A number of variations may include a product that may include a part that may include a composite material that may include a plurality of tubes that may include a plurality of fibers arranged in a generally tubular shape and having at least two sizings temporarily capping the ends of the plurality of tubes and containing a resin.
    Type: Application
    Filed: March 17, 2015
    Publication date: September 22, 2016
    Inventors: BHAVESH SHAH, JOSEPH M. POLEWARCZYK, HESHAM A. EZZAT
  • Patent number: 9403318
    Abstract: A method of joining a first thermoplastic component with a second thermoplastic component includes abutting a joint surface of the first thermoplastic component against a joint surface of the second thermoplastic component. The first thermoplastic component includes a thermoplastic protrusion extending from the joint surface, and the joint surface of the second thermoplastic component defines a receiving pocket adapted to receive the thermoplastic protrusion. Abutting a joint surface of the first thermoplastic component against a joint surface of the second thermoplastic component further includes inserting the thermoplastic protrusion into the receiving pocket. Once abutted, thermal energy is applied to a heat-apply surface of the second thermoplastic component, that is opposite the joint surface. The thermal energy is sufficient to melt a portion of the thermoplastic protrusion and a portion of the joint surface of the second thermoplastic component.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: August 2, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Hesham A. Ezzat, Joseph M. Polewarczyk
  • Publication number: 20160193811
    Abstract: A number of variations may include a method that may include providing a composite material that may include nano-tubes that may include pressure activated resin, forming the composite material such that the resin within the nano-tubes may begin to cure, holding the composite material in a formed state, removing the composite material from the formed state, and curing the composite material.
    Type: Application
    Filed: January 5, 2015
    Publication date: July 7, 2016
    Inventors: HESHAM A. EZZAT, JOSEPH M. POLEWARCZYK, BHAVESH SHAH
  • Patent number: 9381957
    Abstract: A vehicle includes a vehicle body having a first vehicle body end configured to face oncoming ambient airflow when the vehicle is in motion relative to a road surface. The vehicle additionally includes a spoiler assembly mounted to the vehicle body. The spoiler assembly includes a spoiler body configured to control a movement of the ambient airflow along the vehicle body. The spoiler body includes a frame having an upper side, a lower side, a leading edge, and a trailing edge. The spoiler body also includes a first fluid bladder arranged on the upper side of the frame and a second fluid bladder arranged on the lower side of the frame. The spoiler assembly also includes a mechanism configured to selectively supply and remove fluid from the first and second fluid bladders.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: July 5, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Joshua R. Auden, Hesham A. Ezzat
  • Patent number: 9249608
    Abstract: A door assembly includes a structure including an exterior panel defining an opening, and a grab bar. The grab bar is moveable relative to the exterior panel. A first linkage system and a second linkage system interconnect the grab bar and the structure. A drive assembly is coupled to the first linkage system and the second linkage system to move the grab bar between an extended position and a retracted position. The drive assembly includes a Shape Memory Alloy (SMA) actuator that contracts in response to a control signal, to move the grab bar. A seal may be provided to seal between the grab bar and the structure. A heating element may provide a thermal load to heat the grab bar, a seal surrounding the grab bar, or both.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: February 2, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Steven C. Lang, Nilesh D. Mankame, Hesham A. Ezzat
  • Publication number: 20150315826
    Abstract: A door assembly includes a structure including an exterior panel defining an opening, and a grab bar. The grab bar is moveable relative to the exterior panel. A first linkage system and a second linkage system interconnect the grab bar and the structure. A drive assembly is coupled to the first linkage system and the second linkage system to move the grab bar between an extended position and a retracted position. The drive assembly includes a Shape Memory Alloy (SMA) actuator that contracts in response to a control signal, to move the grab bar. A seal may be provided to seal between the grab bar and the structure. A heating element may provide a thermal load to heat the grab bar, a seal surrounding the grab bar, or both.
    Type: Application
    Filed: May 5, 2014
    Publication date: November 5, 2015
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Steven C. Lang, Nilesh D. Mankame, Hesham A. Ezzat
  • Patent number: 9132619
    Abstract: Embodiments of the present invention provide high durability joints between ceramic articles, particularly between beta-silicon carbide (?-SiC) articles, and methods of making and using the same. In one embodiment, a joint between first and second articles each comprising a ceramic polymorph comprises a matrix comprising the ceramic polymorph and extending between the first and second articles; a plurality of inclusions comprising the ceramic polymorph and being distributed throughout the matrix; and a sealing layer comprising the ceramic polymorph and being respectively disposed on the first and second articles and the matrix.
    Type: Grant
    Filed: April 4, 2013
    Date of Patent: September 15, 2015
    Assignee: General Atomics
    Inventors: Hesham Ezzat Khalifa, Christian Peter Deck, Christina Allyssa Back
  • Publication number: 20150246635
    Abstract: A vehicle includes a body panel, a light, and a concealment panel. The body panel extends along a longitudinal axis between a forward end and a rearward end. The body panel defines an opening. The light is operable to illuminate in response to an input. The concealment panel is movably attached to the body panel. The concealment panel is movable relative to the body panel from a closed position to an open position, in response to the input. The concealment panel covers the opening such that the light is concealed when the concealment panel is in the closed position. Likewise, the concealment panel at least partially uncovers the opening such that the light is revealed when the concealment panel is in the open position.
    Type: Application
    Filed: February 28, 2014
    Publication date: September 3, 2015
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jay H. Ovenshire, Hesham A. Ezzat
  • Publication number: 20150210330
    Abstract: A motor compartment structure for a vehicle includes an intermediate joint welded to a forward region of a cab of the vehicle. Also included is an upper motor compartment rail having a forward end and a rearward end, the rearward end mechanically fastened to the intermediate joint.
    Type: Application
    Filed: January 30, 2014
    Publication date: July 30, 2015
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Hesham A. Ezzat, Marcel R. Cannon, Mark A. Nelson, John T. Freiwald, Terry A. Swartzell
  • Patent number: 9090287
    Abstract: A method of manufacturing a structural support member for a vehicle includes forming a first portion, forming a second portion, and connecting the first portion and the second portion together. The first portion and the second portion may be formed from one of an aluminum material, a magnesium material, a cold-formable steel material, a glass fiber composite material, or a plastic material. The first portion and the second portion are connected together such that the second portion is disposed in a tensile loading condition in response to an impact load applied to the first portion. A laminate layer is attached to the second portion. The laminate layer includes an ultra high strength material having a yield strength equal to or greater than five hundred fifty (550) MPa. The laminate layer may include, for example, an iron based glassy metal foil or an iron based glassy metal foil fabric.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: July 28, 2015
    Assignees: GM Global Technology Operations LLC, The Nanosteel Company, Inc.
    Inventors: Hesham A. Ezzat, Charles D Tuffile, Marcel R. Cannon
  • Patent number: 9067617
    Abstract: A vehicle includes a vehicle frame, a wheel and tire assembly, and a wheel turn initiator system. The wheel and tire assembly is mounted with respect to the vehicle frame and is selectively rotatable about a generally vertical axis. The wheel turn initiator system is mounted with respect to the frame and has a member. The wheel turn initiator system is configured such that an external force applied to the front end of the vehicle causes the member to engage the wheel and tire assembly and thereby cause the wheel and tire assembly to rotate about the axis.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: June 30, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Jeffrey L. Konchan, Hesham A. Ezzat
  • Publication number: 20150072106
    Abstract: A number of variations may include a method may include providing a first part and a second part and forming a first plurality of prolongations on a surface of the first part and forming a second plurality of prolongations on a surface of the second part. The first part and the second part may be brought together and abutted such that the first plurality of prolongations abuts against the second plurality of prolongations. The first plurality of prolongations and the second plurality of prolongations may be constructed and arranged to mechanically bond. A load may be applied such that both the first plurality of prolongations and second plurality of prolongations temporarily deform and mechanically bond the first part and the second part together.
    Type: Application
    Filed: September 11, 2013
    Publication date: March 12, 2015
    Applicant: GM Global Technology Operations LLC
    Inventors: HESHAM A. EZZAT, JOSEPH M. POLEWARCZYK
  • Patent number: 8965585
    Abstract: A controller is provided for HVAC equipment. The controller has a processor, memory, and a RF module for a home automation network, and is operable to regulate operation of the HVAC equipment based upon a scheduling program stored in memory. The scheduling program includes at least one usage periods and at least one set point associated with each usage period. The controller is also operable to regulate operation of remote electrical devices over the home automation network; and to create a device scheduling program for the remote electrical devices, the device scheduling program including at least one device period and an operational state associated with each device period.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: February 24, 2015
    Assignee: ecobee inc.
    Inventors: Stuart Lombard, Mark Machiondo, Hesham Ezzat Fahmy, Erlend Sobec
  • Publication number: 20150000995
    Abstract: A vehicle includes a vehicle frame, a wheel and tire assembly, and a wheel turn initiator system. The wheel and tire assembly is mounted with respect to the vehicle frame and is selectively rotatable about a generally vertical axis. The wheel turn initiator system is mounted with respect to the frame and has a member. The wheel turn initiator system is configured such that an external force applied to the front end of the vehicle causes the member to engage the wheel and tire assembly and thereby cause the wheel and tire assembly to rotate about the axis.
    Type: Application
    Filed: November 22, 2013
    Publication date: January 1, 2015
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jeffrey L. Konchan, Hesham A. Ezzat