Patents by Inventor Godfrey Sauti
Godfrey Sauti 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: 11097440Abstract: A cutting mechanism includes electrodes that are utilized to cut or score a non-conductive outer material of a filament or sheet. The electrodes contact a conductive reinforcing material of the filament or sheet to complete an electric circuit. Electric current flows through and heats the conductive material to oxidize or otherwise separate/cut the conductive material and any remaining non-conductive material.Type: GrantFiled: November 7, 2016Date of Patent: August 24, 2021Assignee: UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF NASAInventors: Godfrey Sauti, Jae-Woo Kim, Emilie J. Siochi, John M. Gardner
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Patent number: 10894353Abstract: A method of fabricating (printing) parts utilizing flexible filaments includes anchoring a portion of a flexible filament to a substrate. A length of flexible filament is extended over the substrate while the flexible filament is in tension to thereby avoid buckling of the flexible filament. The flexible filament may comprise a thermoplastic material and fibers or other reinforcing materials whereby composite 3D parts can be fabricated.Type: GrantFiled: November 9, 2016Date of Patent: January 19, 2021Assignee: UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF NASAInventors: John M. Gardner, Christopher J. Stelter, Katherine A. Fotion, Jae-Woo Kim, Godfrey Sauti, Emilie J. Siochi
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Patent number: 10607742Abstract: The invention consists of radiation shielding materials for shielding in the most structurally robust combination against galactic cosmic radiation (GCR), neutrons, and solar energetic particles (SEP). Materials for vehicles, space structures, habitats, landers, rovers, and spacesuits must possess functional characteristics of radiation shielding, thermal protection, pressure resistance, and mechanical durability. The materials are tailored to offer the greatest shielding against GCR, neutrons, and SEP in the most structurally robust combination, also capable of shielding against micrometeoriod impact. The boron nitride nanotube (BNNT) is composed entirely of low Z atoms (boron and nitrogen).Type: GrantFiled: November 19, 2012Date of Patent: March 31, 2020Assignees: National Institute of Aerospace Associates, United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Sheila A. Thibeault, Catharine C. Fay, Godfrey Sauti, Jin Ho Kang, Cheol Park
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Patent number: 10533270Abstract: Consolidated carbon nanotube or graphene yarns and woven sheets are consolidated through the formation of a carbon hinder formed from the dehydration of sucrose. The resulting materials, on a macro-scale are lightweight and of a high specific modulus and/or strength. Sucrose is relatively inexpensive and readily available, and the process is therefore cost-effective.Type: GrantFiled: June 22, 2017Date of Patent: January 14, 2020Assignee: United States of America as represented by the Administrator of NASAInventors: Godfrey Sauti, Jae-Woo Kim, Emilie J. Siochi, Kristopher E. Wise
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Patent number: 10513080Abstract: A method of fabricating composite articles includes supplying electrical current to an electrically conductive filament. The electrically conductive filament may include a first material that is electrically conductive and a polymer second material. The polymer second material comprises at least one of a thermoplastic polymer and a partially cured thermosetting polymer. The heated filament is deposited according to a predefined pattern in successive layers to adhere the polymer material of the layers together and build up a three dimensional article. The article includes strands of the first material embedded in a substantially continuous polymer matrix of the second material.Type: GrantFiled: November 7, 2016Date of Patent: December 24, 2019Assignee: United States of America as represented by the Administrator of NASAInventors: Jae-Woo Kim, Godfrey Sauti, John M. Gardner, Emilie J. Siochi
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Patent number: 10500836Abstract: A method of controlling an additive fabrication process includes providing a primary substrate and a test substrate. Polymer test material is extruded onto the test substrate utilizing an extrusion head. The extrusion head is moved relative to the test substrate, and a force required to move the extrusion head relative to the test substrate is measured to thereby generate test data. A part is fabricated by extruding polymer material onto the primary substrate utilizing the extrusion head. The test data is utilized to control at least one process parameter associated with extruding polymer material onto the primary substrate.Type: GrantFiled: November 7, 2016Date of Patent: December 10, 2019Assignee: United States of America as represented by the Administrator of NASAInventors: Godfrey Sauti, Jae-Woo Kim, Emilie J. Siochi, John M. Gardner, Christopher J. Stelter
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Patent number: 10435293Abstract: Formation of a boron nitride nanotube nanocomposite film by combining a boron nitride nanotube solution with a matrix such as a polymer or a ceramic to form a boron nitride nanotube/polyimide mixture and synthesizing a boron nitride nanotube/polyimide nanocomposite film as an electroactive layer.Type: GrantFiled: October 13, 2010Date of Patent: October 8, 2019Assignees: National Institute of Aerospace Associates, The United States of America as represented by the Administrator of NASAInventors: Jin Ho Kang, Cheol Park, Joycelyn S. Harrison, Michael W. Smith, Sharon E. Lowther, Jae-Woo Kim, Godfrey Sauti
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Patent number: 10262951Abstract: A novel radiation hardened chip package technology protects microelectronic chips and systems in aviation/space or terrestrial devices against high energy radiation. The proposed technology of a radiation hardened chip package using rare earth elements and mulitlayered structure provides protection against radiation bombardment from alpha and beta particles to neutrons and high energy electromagnetic radiation.Type: GrantFiled: May 16, 2014Date of Patent: April 16, 2019Assignees: National Institute of Aerospace Associates, The United States of America as represented by the Administrator of NASAInventors: Jin Ho Kang, Godfrey Sauti, Cheol Park, Luke Gibbons, Sheila Ann Thibeault, Sharon E. Lowther, Robert G. Bryant
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Patent number: 10139345Abstract: A method of fabricating composite structures comprising carbon nanotubes. The method including providing a nanotube starting material, forming the composite structure with the nanotube starting material and monitoring at least a magnetic or Raman property of the composite structure while forming the composite structure.Type: GrantFiled: October 2, 2015Date of Patent: November 27, 2018Assignee: THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF NASAInventors: Russell A. Wincheski, Jae-Woo Kim, Godfrey Sauti, Emilie J. Siochi, Phillip A. Williams
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Patent number: 10000036Abstract: Boron nitride nanotubes (BNNTs), boron nitride nanoparticles (BNNPs), carbon nontubes (CNTs), graphites, or their combinations, are incorporated into matrices of polymer, ceramic or metals. Fibers, yarns, and woven or nonwoven mates of BNNTs are uses as toughening layers in penetration resistant materials to maximize energy absorption and/or high hardness layers to rebound or deform penetrators. They can be also uses as reinforcing inclusions combining with other polymer matrices to create composite layer like typical reinforcing fibers such as Kevlar®, Spectra®, ceramics and metals. Enhanced wear resistance and prolonged usage time, even under harsh conditions, are achieved by adding boron nitride nanomaterials because both hardness and toughness are increased. Such materials can be used in high temperature environments since the oxidation temperature of BNNTs exceeds 800° C. in air.Type: GrantFiled: June 29, 2015Date of Patent: June 19, 2018Assignee: The United States of America as represented by the Administrator of NASAInventors: Jin Ho Kang, Cheol Park, Godfrey Sauti, Michael W. Smith, Kevin C. Jordan, Sharon E. Lowther, Robert G. Bryant
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Patent number: 9960288Abstract: Some implementations provide a device (e.g., solar panel) that includes an active layer and a solar absorbance layer. The active layer includes a first N-type layer and a first P-type layer. The solar absorbance layer is coupled to a first surface of the active layer. The solar absorbance layer includes a polymer composite. In some implementations, the polymer composite includes one of at least metal salts and/or carbon nanotubes. In some implementations, the active layer is configured to provide the photovoltaic effect. In some implementations, the active layer further includes a second N-type layer and a second P-type layer. In some implementations, the active layer is configured to provide the thermoelectric effect. In some implementations, the device further includes a cooling layer coupled to a second surface of the active layer. In some implementations, the cooling layer includes one of at least zinc oxides, indium oxides, and/or carbon nanotubes.Type: GrantFiled: August 8, 2013Date of Patent: May 1, 2018Assignee: The United State of America as represented by the Administrator of NASAInventors: Jin Ho Kang, Chase Taylor, Cheol Park, Godfrey Sauti, Luke Gibbons, Iseley Marshall, Sharon E. Lowther, Peter T. Lillehei, Joycelyn S. Harrison, Robert G. Bryant
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Patent number: 9845269Abstract: Multifunctional Boron Nitride nanotube-Boron Nitride (BN—BN) nanocomposites for energy transducers, thermal conductors, anti-penetrator/wear resistance coatings, and radiation hardened materials for harsh environments. An all boron-nitride structured BN—BN composite is synthesized. A boron nitride containing precursor is synthesized, then mixed with boron nitride nanotubes (BNNTs) to produce a composite solution which is used to make green bodies of different forms including, for example, fibers, mats, films, and plates. The green bodies are pyrolized to facilitate transformation into BN—BN composite ceramics. The pyrolysis temperature, pressure, atmosphere and time are controlled to produce a desired BN crystalline structure. The wholly BN structured materials exhibit excellent thermal stability, high thermal conductivity, piezoelectricity as well as enhanced toughness, hardness, and radiation shielding properties.Type: GrantFiled: March 29, 2013Date of Patent: December 19, 2017Assignees: National Institute of Aerospace Associates, The United States of America as represented by the Administration of NASAInventors: Jin Ho Kang, Robert G. Bryant, Cheol Park, Godfrey Sauti, Luke Gibbons, Sharon Lowther, Sheila A. Thibeault, Catharine C. Fay
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Publication number: 20170284000Abstract: Consolidated carbon nanotube or graphene yarns and woven sheets are consolidated through the formation of a carbon hinder formed from the dehydration of sucrose. The resulting materials, on a macro-scale are lightweight and of a high specific modulus and/or strength. Sucrose is relatively inexpensive and readily available, and the process is therefore cost-effective.Type: ApplicationFiled: June 22, 2017Publication date: October 5, 2017Inventors: Godfrey Sauti, Jae-Woo Kim, Emilie J. Siochi, Kristopher E. Wise
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Publication number: 20170190143Abstract: Boron nitride nanotubes (BNNTs), boron nitride nanoparticles (BNNPs), carbon nontubes (CNTs), graphites, or their combinations, are incorporated into matrices of polymer, ceramic or metals. Fibers, yarns, and woven or nonwoven mates of BNNTs are uses as toughening layers in penetration resistant materials to maximize energy absorption and/or high hardness layers to rebound or deform penetrators. They can be also uses as reinforcing inclusions combining with other polymer matrices to create composite layer like typical reinforcing fibers such as Kevlar®, Spectra®, ceramics and metals. Enhanced wear resistance and prolonged usage time, even under harsh conditions, are achieved by adding boron nitride nanomaterials because both hardness and toughness are increased. Such materials can be used in high temperature environments since the oxidation temperature of BNNTs exceeds 800° C. in air.Type: ApplicationFiled: June 29, 2015Publication date: July 6, 2017Applicant: Jefferson Science Associates, LLCInventors: Jin Ho Kang, Cheol Park, Godfrey Sauti, Michael W. Smith, Kevin C. Jordan, Sharon E. Lowther, Robert G. Bryant
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Patent number: 9695531Abstract: Consolidated carbon nanotube or graphene yarns and woven sheets are consolidated through the formation of a carbon binder formed from the dehydration of sucrose. The resulting materials, on a macro-scale are lightweight and of a high specific modulus and/or strength. Sucrose is relatively inexpensive and readily available, and the process is therefore cost-effective.Type: GrantFiled: March 12, 2014Date of Patent: July 4, 2017Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Godfrey Sauti, Jae-Woo Kim, Emilie J. Siochi, Kristopher E. Wise
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Publication number: 20170129170Abstract: A method of fabricating composite articles includes supplying electrical current to an electrically conductive filament. The electrically conductive filament may include a first material that is electrically conductive and a polymer second material. The polymer second material comprises at least one of a thermoplastic polymer and a partially cured thermosetting polymer. The heated filament is deposited according to a predefined pattern in successive layers to adhere the polymer material of the layers together and build up a three dimensional article. The article includes strands of the first material embedded in a substantially continuous polymer matrix of the second material.Type: ApplicationFiled: November 7, 2016Publication date: May 11, 2017Inventors: Jae-Woo Kim, Godfrey SAUTI, John M. GARDNER, Emilie J. SIOCHI
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Publication number: 20170129171Abstract: A method of fabricating (printing) parts utilizing flexible filaments includes anchoring a portion of a flexible filament to a substrate. A length of flexible filament is extended over the substrate while the flexible filament is in tension to thereby avoid buckling of the flexible filament. The flexible filament may comprise a thermoplastic material and fibers or other reinforcing materials whereby composite 3D parts can be fabricated.Type: ApplicationFiled: November 9, 2016Publication date: May 11, 2017Inventors: John M. Gardner, Christopher J. Stelter, Katherine A. Fotion, Jae-Woo Kim, Godfrey Sauti, Emilie J. Siochi
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Publication number: 20170129182Abstract: A cutting mechanism includes electrodes that are utilized to cut or score a non-conductive outer material of a filament or sheet. The electrodes contact a conductive reinforcing material of the filament or sheet to complete an electric circuit. Electric current flows through and heats the conductive material to oxidize or otherwise separate/cut the conductive material and any remaining non-conductive material.Type: ApplicationFiled: November 7, 2016Publication date: May 11, 2017Inventors: Godfrey Sauti, Jae-Woo Kim, Emilie J. Siochi, John M. Gardner
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Publication number: 20170129186Abstract: A method of controlling an additive fabrication process includes providing a primary substrate and a test substrate. Polymer test material is extruded onto the test substrate utilizing an extrusion head. The extrusion head is moved relative to the test substrate, and a force required to move the extrusion head relative to the test substrate is measured to thereby generate test data. A part is fabricated by extruding polymer material onto the primary substrate utilizing the extrusion head. The test data is utilized to control at least one process parameter associated with extruding polymer material onto the primary substrate.Type: ApplicationFiled: November 7, 2016Publication date: May 11, 2017Inventors: Godfrey Sauti, Jae-Woo Kim, Emilie J. Siochi, John M. Gardner, Christopher J. Stelter
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Patent number: 9550873Abstract: Some implementations provide a composite material that includes a first material and a second material. In some implementations, the composite material is a metamaterial. The first material includes a chiral polymer (e.g., crystalline chiral helical polymer, poly-?-benzyl-L-glutamate (PBLG), poly-L-lactic acid (PLA), polypeptide, and/or polyacetylene). The second material is within the chiral polymer. The first material and the second material are configured to provide an effective index of refraction value for the composite material of 1 or less. In some implementations, the effective index of refraction value for the composite material is negative. In some implementations, the effective index of refraction value for the composite material of 1 or less is at least in a wavelength of one of at least a visible spectrum, an infrared spectrum, a microwave spectrum, and/or an ultraviolet spectrum.Type: GrantFiled: July 12, 2013Date of Patent: January 24, 2017Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Cheol Park, Jin Ho Kang, Keith L. Gordon, Godfrey Sauti, Sharon E. Lowther, Robert G. Bryant