Patents by Inventor Daniel H. Hecht
Daniel H. Hecht 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: 10781319Abstract: An environmental protective coating (“EPC”) for protecting a surface subjected to high temperature environments of more than 3000 degree F. The coating includes a dense platelet lamellar microstructure with a self-sealing, compliant binder material for holding the platelets together. The platelets may be formed from materials that are resistant to high temperatures and impermeable, such as ceramics. The lamellar microstructure creates a tortuous path for oxygen to reach the surface. The binder material includes engineered free internal volume, which increases the elastic strain of the EPC. The binder is softer than the platelets, which in combination with its free volume increases pliability of the EPC. The binder may have sufficient glass content and glass-forming content for initial and long-term sealing purposes.Type: GrantFiled: July 15, 2016Date of Patent: September 22, 2020Inventor: Daniel H. Hecht
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Patent number: 10427985Abstract: A ceramic composite material comprises a ceramic compound, a plurality of shaping particles dispersed in the ceramic compound, and a plurality void spaces dispersed in the ceramic compound. The plurality of shaping particles are contained within the plurality of void spaces, and each of the plurality of void spaces is a closed cell. The plurality of shaping particles also comprise nanostructures have a length to diameter ratio of less than or equal to 10 to 1 and a length of less than or equal to 500 nanometers.Type: GrantFiled: March 6, 2018Date of Patent: October 1, 2019Assignee: Lockheed Martin CorporationInventors: Daniel H. Hecht, Antonio P. De La Garza, III
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Publication number: 20190276371Abstract: A ceramic composite material comprises a ceramic compound, a plurality of shaping particles dispersed in the ceramic compound, and a plurality void spaces dispersed in the ceramic compound. The plurality of shaping particles are contained within the plurality of void spaces, and each of the plurality of void spaces is a closed cell. The plurality of shaping particles also comprise nanostructures have a length to diameter ratio of less than or equal to 10 to 1 and a length of less than or equal to 500 nanometers.Type: ApplicationFiled: March 6, 2018Publication date: September 12, 2019Inventors: Daniel H. Hecht, Antonio P. De La Garza, III
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Patent number: 10286623Abstract: A composite material includes a plurality of reinforcements arranged in a plurality of layers. Each reinforcement comprises a tapered shape that allows the reinforcements of a particular layer to nest with reinforcements of an adjacent layer. The composite material further includes an adhesive that is at least partially between the layers of reinforcements.Type: GrantFiled: June 15, 2015Date of Patent: May 14, 2019Assignee: Lockheed Martin CorporationInventor: Daniel H. Hecht
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Patent number: 9957379Abstract: Composite materials are provided that include nanostructures bound together by a binder material in a manner that provides the composite material with high strain capability and toughness. The nanostructures and binder material form a matrix material in which long fiber reinforcements may be embedded to form a structural composite material. The nanostructures may have relatively low aspect ratios, preventing entanglement during processing. The nanostructures can be arranged in an interconnected network to form a high free-volume skeletal structure within the matrix material that allows the nanostructures to flex and return to their original shapes. As applied to ceramic matrix composite (CMC) materials, this tough, flexible matrix material allows for full bonding of the matrix material with the fiber reinforcements so that CMC materials can realize the full potential of the reinforcing fibers and possess superior inter-laminar strength.Type: GrantFiled: January 3, 2012Date of Patent: May 1, 2018Assignee: Lockheed Martin CorporationInventors: Daniel H. Hecht, William R. Garver
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Patent number: 9581030Abstract: An environmental protective coating (EPC) for protecting a surface subjected to high temperature environments of more than 3000 degree F. The coating includes a dense platelet lamellar microstructure with a self-sealing, compliant binder material for holding the platelets together. The platelets may be formed from materials that are resistant to high temperatures and impermeable, such as ceramics. The lamellar microstructure creates a tortuous path for oxygen to reach the surface. The binder material may have free internal volume to increase the strain capability between the platelets and absorb increased volume during operation. The binder may be formed from a material that is softer and has a lower temperature capability than the platelets to provide the system with the required compliance and sealing capability. The binder may have sufficient glass content and glass-forming content for initial and long-term sealing purposes.Type: GrantFiled: January 21, 2011Date of Patent: February 28, 2017Assignee: Lockheed Martin CorporationInventor: Daniel H. Hecht
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Publication number: 20160361890Abstract: A composite material includes a plurality of reinforcements arranged in a plurality of layers. Each reinforcement comprises a tapered shape that allows the reinforcements of a particular layer to nest with reinforcements of an adjacent layer. The composite material further includes an adhesive that is at least partially between the layers of reinforcements.Type: ApplicationFiled: June 15, 2015Publication date: December 15, 2016Inventor: Daniel H. Hecht
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Publication number: 20160319135Abstract: An environmental protective coating (“EPC”) for protecting a surface subjected to high temperature environments of more than 3000 degree F. The coating includes a dense platelet lamellar microstructure with a self-sealing, compliant binder material for holding the platelets together. The platelets may be formed from materials that are resistant to high temperatures and impermeable, such as ceramics. The lamellar microstructure creates a tortuous path for oxygen to reach the surface. The binder material includes engineered free internal volume, which increases the elastic strain of the EPC. The binder is softer than the platelets, which in combination with its free volume increases pliability of the EPC. The binder may have sufficient glass content and glass-forming content for initial and long-term sealing purposes.Type: ApplicationFiled: July 15, 2016Publication date: November 3, 2016Applicant: Lockheed Martin CorporationInventor: Daniel H. Hecht
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Patent number: 9023175Abstract: A film adhesive for bonding adjacent composite structures.Type: GrantFiled: August 4, 2008Date of Patent: May 5, 2015Assignee: Lockheed Martin CorporationInventor: Daniel H. Hecht
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Patent number: 8613580Abstract: A fastening device for securing panels together. Threads are formed along an outer circumference of a shank of the fastening device. The shank is coaxially connected to a head configured to be engaged by and to transfer torque loads from a tool to the shank. The shank comprises concentric cylindrical braid layers that each includes braided reinforcing fibers infiltrated with a resin matrix and adhesive layers may be disposed between them.Type: GrantFiled: April 28, 2011Date of Patent: December 24, 2013Assignee: Lockheed Martin CorporationInventor: Daniel H. Hecht
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Publication number: 20130171441Abstract: Composite materials are provided that include nanostructures bound together by a binder material in a manner that provides the composite material with high strain capability and toughness. The nanostructures and binder material form a matrix material in which long fiber reinforcements may be embedded to form a structural composite material. The nanostructures may have relatively low aspect ratios, preventing entanglement during processing. The nanostructures can be arranged in an interconnected network to form a high free-volume skeletal structure within the matrix material that allows the nanostructures to flex and return to their original shapes. As applied to ceramic matrix composite (CMC) materials, this tough, flexible matrix material allows for full bonding of the matrix material with the fiber reinforcements so that CMC materials can realize the full potential of the reinforcing fibers and possess superior inter-laminar strength.Type: ApplicationFiled: January 3, 2012Publication date: July 4, 2013Applicant: Lockheed Martin CorporationInventors: Daniel H. Hecht, William R. Garver
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Publication number: 20120275879Abstract: A fastening device for securing panels together. Threads are formed along an outer circumference of a shank of the fastening device. The shank is coaxially connected to a head configured to be engaged by and to transfer torque loads from a tool to the shank. The shank comprises concentric cylindrical braid layers that each includes braided reinforcing fibers infiltrated with a resin matrix and adhesive layers may be disposed between them.Type: ApplicationFiled: April 28, 2011Publication date: November 1, 2012Applicant: Lockheed Martin CorporationInventor: Daniel H. Hecht
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Publication number: 20120189871Abstract: An environmental protective coating (EPC) for protecting a surface subjected to high temperature environments of more than 3000 degree F. The coating includes a dense platelet lamellar microstructure with a self-sealing, compliant binder material for holding the platelets together. The platelets may be formed from materials that are resistant to high temperatures and impermeable, such as ceramics. The lamellar microstructure creates a tortuous path for oxygen to reach the surface. The binder material may have free internal volume to increase the strain capability between the platelets and absorb increased volume during operation. The binder may be formed from a material that is softer and has a lower temperature capability than the platelets to provide the system with the required compliance and sealing capability. The binder may have sufficient glass content and glass-forming content for initial and long-term sealing purposes.Type: ApplicationFiled: January 21, 2011Publication date: July 26, 2012Applicant: LOCKHEED MARTIN CORPORATIONInventor: Daniel H. Hecht
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Patent number: 8188366Abstract: A solar energy conversion package includes a photovoltaic (PV) cell, a thermionic or thermoelectric conversion unit and a thermal heating system. Solar radiation is concentrated by a lens or reflector and directed to the PV cell for electrical power conversion. A water circulation system maintains the PV cell at working temperatures. The thermionic or thermoelectric conversion cell is coupled between these cells in the thermal path to generate additional power. Additional efficiencies may be gained by partitioning the solar radiation with prisms or wavelength specific filters or reflective coatings into discrete spectrum segments optimized for each conversion unit for maximizing efficiency of electrical energy conversion and equipment design. Integrating all three of these conversion techniques produces a synergistic system that exceeds the performance conventional solar conversion systems.Type: GrantFiled: June 2, 2010Date of Patent: May 29, 2012Assignee: Lockheed Martin CorporationInventor: Daniel H. Hecht
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Publication number: 20100269880Abstract: A solar energy conversion package includes a photovoltaic (PV) cell, a thermionic or thermoelectric conversion unit and a thermal heating system. Solar radiation is concentrated by a lens or reflector and directed to the PV cell for electrical power conversion. A water circulation system maintains the PV cell at working temperatures. The thermionic or thermoelectric conversion cell is coupled between these cells in the thermal path to generate additional power. Additional efficiencies may be gained by partitioning the solar radiation with prisms or wavelength specific filters or reflective coatings into discrete spectrum segments optimized for each conversion unit for maximizing efficiency of electrical energy conversion and equipment design. Integrating all three of these conversion techniques produces a synergistic system that exceeds the performance conventional solar conversion systems.Type: ApplicationFiled: June 2, 2010Publication date: October 28, 2010Applicant: Lockheed Martin CorporationInventor: Daniel H. Hecht
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Publication number: 20100024975Abstract: A film adhesive for bonding adjacent composite structures.Type: ApplicationFiled: August 4, 2008Publication date: February 4, 2010Applicant: LOCKHEED MARTIN CORPORATIONInventor: Daniel H. Hecht
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Publication number: 20070289622Abstract: A solar energy conversion package includes a photovoltaic (PV) cell, a thermionic or thermoelectric conversion unit and a thermal heating system. Solar radiation is concentrated by a lens or reflector and directed to the PV cell for electrical power conversion. A water circulation system maintains the PV cell at working temperatures. The thermionic or thermoelectric conversion cell is coupled between these cells in the thermal path to generate additional power. Additional efficiencies may be gained by partitioning the solar radiation with prisms or wavelength specific filters or reflective coatings into discrete spectrum segments optimized for each conversion unit for maximizing efficiency of electrical energy conversion and equipment design. Integrating all three of these conversion techniques produces a synergistic system that exceeds the performance conventional solar conversion systems.Type: ApplicationFiled: June 19, 2006Publication date: December 20, 2007Inventor: Daniel H. Hecht
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Patent number: 6432536Abstract: Self-reinforcing, pitch-based carbon articles having an unique combination of excellent thermal conductivity and outstanding mechanical properties are produced by carbonizing acid-treated mesophase pitch fiber, preferably in the form of a preform structure The carbon articles having varying degrees of porosity are particularly desirable for use in thermal management and stiffness applications, and in carbon vapor infiltration processes employed in making complex solid carbon articles.Type: GrantFiled: May 31, 1995Date of Patent: August 13, 2002Assignee: Cytec Carbon Fibers LLCInventors: Daniel H. Hecht, David A. Schulz
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Patent number: 5750058Abstract: Self-reinforcing, pitch-based carbon articles having a unique combination of excellent thermal conductivity and outstanding mechanical properties are produced by carbonizing an acid-treated, mesophase pitch fiber preform. The carbon articles having varying degrees of porosity are particularly desirable for use in thermal management and stiffness applications, and in carbon vapor infiltration processes employed in making complex solid carbon articles.Type: GrantFiled: July 8, 1996Date of Patent: May 12, 1998Assignee: Amoco CorporationInventors: Daniel H. Hecht, David A. Schulz
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Patent number: 5705008Abstract: The present invention relates to the fabrication of thick, three-dimensional structures comprising discontinuous thermoset pitch fiber, and to composites comprising such structures embedded in a matrix material such as a thermoset resin, ceramic, metal or carbon. Carbon-carbon fiber composite articles produced from porous carbon preforms obtained by carbonizing such structures followed by infiltration with pyrolytic carbon using CVD processes exhibit surprisingly high through-thickness thermal conductivity and isotropic properties.Type: GrantFiled: July 23, 1996Date of Patent: January 6, 1998Assignee: Amoco CorporationInventor: Daniel H. Hecht