Patents by Inventor Tiffany A. Stewart

Tiffany A. Stewart 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).

  • Publication number: 20230407535
    Abstract: Knit fabrics having ceramic strands, thermal protective members formed therefrom and to their methods of construction are disclosed. Methods for fabricating thermal protection using multiple materials which may be concurrently knit are also disclosed. This unique capability to knit high temperature ceramic fibers concurrently with a load-relieving process aid, such as an inorganic or organic material (e.g., metal alloy or polymer), both small diameter wires within the knit as well as large diameter wires which provide structural support and allow for the creation of near net-shape preforms at production level speed. Additionally, ceramic insulation can also be integrated concurrently to provide increased thermal protection.
    Type: Application
    Filed: September 6, 2023
    Publication date: December 21, 2023
    Inventors: Tiffany A. STEWART, Christopher P. HENRY, Amoret M. CHAPPELL
  • Patent number: 11840332
    Abstract: Some variations provide a leading-edge heat pipe comprising: (a) an envelope fabricated from a shell material, wherein the envelope includes at least one edge with a radius of curvature of less than 3 mm, and wherein the envelope includes, or is in thermal communication with, at least one heat-rejection surface; (b) a porous wick fabricated from a ceramic or metallic wick material, wherein the porous wick is configured within a first portion of the interior cavity, wherein at least a portion of the porous wick is adjacent to the inner surface, and wherein the porous wick has a bimodal pore distribution comprising an average capillary-pore size from 0.2 microns to 200 microns and an average high-flow pore size from 100 microns to 2 millimeters (the average high-flow pore size is greater than the average capillary-pore size); and (c) a phase-change heat-transfer material contained within the porous wick.
    Type: Grant
    Filed: November 21, 2022
    Date of Patent: December 12, 2023
    Assignee: HRL Laboratories, LLC
    Inventors: Christopher S Roper, Mark R. O'Masta, Tobias A. Schaedler, Jacob M. Hundley, Tiffany Stewart
  • Patent number: 11788216
    Abstract: Knit fabrics having ceramic strands, thermal protective members formed therefrom and to their methods of construction are disclosed. Methods for fabricating thermal protection using multiple materials which may be concurrently knit are also disclosed. This unique capability to knit high temperature ceramic fibers concurrently with a load-relieving process aid, such as an inorganic or organic material (e.g., metal alloy or polymer), both small diameter wires within the knit as well as large diameter wires which provide structural support and allow for the creation of near net-shape preforms at production level speed. Additionally, ceramic insulation can also be integrated concurrently to provide increased thermal protection.
    Type: Grant
    Filed: February 15, 2021
    Date of Patent: October 17, 2023
    Assignee: The Boeing Company
    Inventors: Tiffany A. Stewart, Christopher P. Henry, Amoret M Chappell
  • Patent number: 11535360
    Abstract: Some variations provide a leading-edge heat pipe comprising: (a) an envelope fabricated from a shell material, wherein the envelope includes at least one edge with a radius of curvature of less than 3 mm, and wherein the envelope includes, or is in thermal communication with, at least one heat-rejection surface; (b) a porous wick fabricated from a ceramic or metallic wick material, wherein the porous wick is configured within a first portion of the interior cavity, wherein at least a portion of the porous wick is adjacent to the inner surface, and wherein the porous wick has a bimodal pore distribution comprising an average capillary-pore size from 0.2 microns to 200 microns and an average high-flow pore size from 100 microns to 2 millimeters (the average high-flow pore size is greater than the average capillary-pore size); and (c) a phase-change heat-transfer material contained within the porous wick.
    Type: Grant
    Filed: May 17, 2020
    Date of Patent: December 27, 2022
    Assignee: HRL Laboratories, LLC
    Inventors: Christopher S. Roper, Mark R. O'Masta, Tobias A. Schaedler, Jacob M. Hundley, Tiffany Stewart
  • Patent number: 11339509
    Abstract: Knit fabrics having ceramic strands, thermal protective members formed therefrom and to their methods of construction are disclosed. Methods for fabricating thermal protection using multiple materials which may be concurrently knit are also disclosed. This unique capability to knit high temperature ceramic fibers concurrently with a load-relieving process aid, such as an inorganic or organic material (e.g., metal alloy or polymer), both small diameter wires within the knit as well as large diameter wires which provide structural support and allow for the creation of near net-shape performs at production level speed. Additionally, ceramic insulation can also be integrated concurrently to provide increased thermal protection.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: May 24, 2022
    Assignee: THE BOEING COMPANY
    Inventors: Christopher P. Henry, Tiffany A. Stewart, Bruce Huffa
  • Patent number: 11053615
    Abstract: Metal alloy knit fabrics, thermal protective members formed therefrom and their methods of construction are disclosed. This unique capability to knit high temperature metal alloy wire that is drapable allows for the creation of near net-shape preforms at production level speed. Additionally, ceramic insulation can also be integrated concurrently to provide increased thermal protection. The metal alloy knit fabrics described herein overcome the limitations of current welded stainless steel mesh seal coverings by providing coverings that withstand higher operational temperatures than stainless steel, are wear and snag resistant, can be a separate seal layer or as a portion of an integrated seal construction, can accommodate tight curvature changes to achieve complex shapes without wrinkling or buckling, and can be joined in the knitting process, sewed or mechanically fastened, without the need for welding.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: July 6, 2021
    Assignee: THE BOEING COMPANY
    Inventors: Tiffany A. Stewart, Amoret M. Chappell, Christopher P. Henry
  • Patent number: 11053614
    Abstract: Knit fabrics having ceramic strands, thermal protective members formed therefrom and to their methods of construction are disclosed. Methods for fabricating thermal protection using multiple materials which may be concurrently knit are also disclosed. This unique capability to knit high temperature ceramic fibers concurrently with a load-relieving process aid, such as an inorganic or organic material (e.g., metal alloy or polymer), both small diameter wires within the knit as well as large diameter wires which provide structural support and allow for the creation of near net-shape preforms at production level speed. Additionally, ceramic insulation can also be integrated concurrently to provide increased thermal protection.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: July 6, 2021
    Assignee: THE BOEING COMPANY
    Inventors: Tiffany A. Stewart, Christopher P. Henry, Amoret M. Chappell
  • Publication number: 20210164134
    Abstract: Knit fabrics having ceramic strands, thermal protective members formed therefrom and to their methods of construction are disclosed. Methods for fabricating thermal protection using multiple materials which may be concurrently knit are also disclosed. This unique capability to knit high temperature ceramic fibers concurrently with a load-relieving process aid, such as an inorganic or organic material (e.g., metal alloy or polymer), both small diameter wires within the knit as well as large diameter wires which provide structural support and allow for the creation of near net-shape preforms at production level speed. Additionally, ceramic insulation can also be integrated concurrently to provide increased thermal protection.
    Type: Application
    Filed: February 15, 2021
    Publication date: June 3, 2021
    Inventors: Tiffany A. STEWART, Christopher P. HENRY, Amoret N. CHAPPELL
  • Publication number: 20190330772
    Abstract: Metal alloy knit fabrics, thermal protective members formed therefrom and their methods of construction are disclosed. This unique capability to knit high temperature metal alloy wire that is drapable allows for the creation of near net-shape preforms at production level speed. Additionally, ceramic insulation can also be integrated concurrently to provide increased thermal protection. The metal alloy knit fabrics described herein overcome the limitations of current welded stainless steel mesh seal coverings by providing coverings that withstand higher operational temperatures than stainless steel, are wear and snag resistant, can be a separate seal layer or as a portion of an integrated seal construction, can accommodate tight curvature changes to achieve complex shapes without wrinkling or buckling, and can be joined in the knitting process, sewed or mechanically fastened, without the need for welding.
    Type: Application
    Filed: June 14, 2019
    Publication date: October 31, 2019
    Inventors: Tiffany A. STEWART, Amoret M. CHAPPELL, Christopher P. HENRY
  • Patent number: 10337130
    Abstract: Metal alloy knit fabrics, thermal protective members formed therefrom and their methods of construction are disclosed. This unique capability to knit high temperature metal alloy wire that is drapable allows for the creation of near net-shape preforms at production level speed. Additionally, ceramic insulation can also be integrated concurrently to provide increased thermal protection. The metal alloy knit fabrics described herein overcome the limitations of current welded stainless steel mesh seal coverings by providing coverings that withstand higher operational temperatures than stainless steel, are wear and snag resistant, can be a separate seal layer or as a portion of an integrated seal construction, can accommodate tight curvature changes to achieve complex shapes without wrinkling or buckling, and can be joined in the knitting process, sewed or mechanically fastened, without the need for welding.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: July 2, 2019
    Assignee: THE BOEING COMPANY
    Inventors: Tiffany A. Stewart, Amoret M. Chappell, Christopher P. Henry
  • Publication number: 20190145027
    Abstract: Knit fabrics having ceramic strands, thermal protective members formed therefrom and to their methods of construction are disclosed. Methods for fabricating thermal protection using multiple materials which may be concurrently knit are also disclosed. This unique capability to knit high temperature ceramic fibers concurrently with a load-relieving process aid, such as an inorganic or organic material (e.g., metal alloy or polymer), both small diameter wires within the knit as well as large diameter wires which provide structural support and allow for the creation of near net-shape performs at production level speed. Additionally, ceramic insulation can also be integrated concurrently to provide increased thermal protection.
    Type: Application
    Filed: January 16, 2019
    Publication date: May 16, 2019
    Inventors: Christopher P. Henry, Tiffany A. Stewart, Bruce Huffa
  • Patent number: 10184194
    Abstract: Knit fabrics having ceramic strands, thermal protective members formed therefrom and to their methods of construction are disclosed. Methods for fabricating thermal protection using multiple materials which may be concurrently knit are also disclosed. This unique capability to knit high temperature ceramic fibers concurrently with a load-relieving process aid, such as an inorganic or organic material (e.g., metal alloy or polymer), both small diameter wires within the knit as well as large diameter wires which provide structural support and allow for the creation of near net-shape performs at production level speed. Additionally, ceramic insulation can also be integrated concurrently to provide increased thermal protection.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: January 22, 2019
    Assignee: THE BOEING COMPANY
    Inventors: Christopher P. Henry, Tiffany A. Stewart, Bruce Huffa
  • Publication number: 20180002133
    Abstract: Systems and methods are provided for feeding thread at a knitting machine. One embodiment is a thread feeding device which includes a spool that supplies thread to a knitting device through a thread path and a motor that drives the spool. The device and further includes a mobile guide in the thread path that changes position due to changes in thread tension as the knitting device draws thread through the mobile guide. The thread feeding device also includes a sensor that measures a change in position of the mobile guide, and a controller that determines an amount of tension applied to the thread by the knitting device based on the change in position, and adjusts a speed of a motor that drives the spool based on the amount of tension.
    Type: Application
    Filed: June 29, 2016
    Publication date: January 4, 2018
    Applicants: The Boeing Company, The Boeing Company
    Inventors: Tiffany A. Stewart, Guillermo Herrera, Jacob John Mikulsky, Christopher P. Henry
  • Patent number: 9856106
    Abstract: Systems and methods are provided for feeding thread at a knitting machine. One embodiment is a thread feeding device which includes a spool that supplies thread to a knitting device through a thread path and a motor that drives the spool. The device and further includes a mobile guide in the thread path that changes position due to changes in thread tension as the knitting device draws thread through the mobile guide. The thread feeding device also includes a sensor that measures a change in position of the mobile guide, and a controller that determines an amount of tension applied to the thread by the knitting device based on the change in position, and adjusts a speed of a motor that drives the spool based on the amount of tension.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: January 2, 2018
    Assignee: The Boeing Company
    Inventors: Tiffany A Stewart, Guillermo Herrera, Jacob John Mikulsky, Christopher P Henry
  • Publication number: 20170218542
    Abstract: Metal alloy knit fabrics, thermal protective members formed therefrom and their methods of construction are disclosed. This unique capability to knit high temperature metal alloy wire that is drapable allows for the creation of near net-shape preforms at production level speed. Additionally, ceramic insulation can also be integrated concurrently to provide increased thermal protection. The metal alloy knit fabrics described herein overcome the limitations of current welded stainless steel mesh seal coverings by providing coverings that withstand higher operational temperatures than stainless steel, are wear and snag resistant, can be a separate seal layer or as a portion of an integrated seal construction, can accommodate tight curvature changes to achieve complex shapes without wrinkling or buckling, and can be joined in the knitting process, sewed or mechanically fastened, without the need for welding.
    Type: Application
    Filed: February 1, 2016
    Publication date: August 3, 2017
    Inventors: Tiffany A. STEWART, Amoret M. CHAPPELL, Christopher P. HENRY
  • Publication number: 20160369436
    Abstract: Knit fabrics having ceramic strands, thermal protective members formed therefrom and to their methods of construction are disclosed. Methods for fabricating thermal protection using multiple materials which may be concurrently knit are also disclosed. This unique capability to knit high temperature ceramic fibers concurrently with a load-relieving process aid, such as an inorganic or organic material (e.g., metal alloy or polymer), both small diameter wires within the knit as well as large diameter wires which provide structural support and allow for the creation of near net-shape preforms at production level speed. Additionally, ceramic insulation can also be integrated concurrently to provide increased thermal protection.
    Type: Application
    Filed: June 16, 2015
    Publication date: December 22, 2016
    Inventors: Tiffany A. STEWART, Christopher P. HENRY, Amoret M. CHAPPELL
  • Patent number: 9284727
    Abstract: An acoustic barrier structure can include a support structure that defines a plurality of cells, a weight attached to the support structure, and at least one resonant membrane covering one of the plurality of cells. The at least one resonant membrane can comprise at least one weight. The at least one resonant membrane can have an anti-resonant frequency and the support structure with the weight can provide wide frequency band gaps between odd resonance modes while suppressing structure-membrane coupled modes to enable the anti-resonance of the at least one resonant membrane.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: March 15, 2016
    Assignee: The Boeing Company
    Inventors: Geoffrey P. McKnight, Chia-Ming Chang, Tiffany A. Stewart, Joshua M. Montgomery, Janet M. Hogan, Thomas A. Zientek, Douglas R. Ludin
  • Publication number: 20160024693
    Abstract: Knit fabrics having ceramic strands, thermal protective members formed therefrom and to their methods of construction are disclosed. Methods for fabricating thermal protection using multiple materials which may be concurrently knit are also disclosed. This unique capability to knit high temperature ceramic fibers concurrently with a load-relieving process aid, such as an inorganic or organic material (e.g., metal alloy or polymer), both small diameter wires within the knit as well as large diameter wires which provide structural support and allow for the creation of near net-shape performs at production level speed. Additionally, ceramic insulation can also be integrated concurrently to provide increased thermal protection.
    Type: Application
    Filed: July 28, 2014
    Publication date: January 28, 2016
    Inventors: Christopher P. Henry, Tiffany A. Stewart, Bruce Huffa
  • Publication number: 20150328859
    Abstract: A thermal protection system is provided. The thermal protection system includes a thermally insulative core structure, at least one layer of impact-resistant material coupled to the thermally insulative core structure, and at least one layer of composite material at least partially encapsulating the thermally insulative core structure and the at least one layer of impact-resistant material.
    Type: Application
    Filed: May 8, 2015
    Publication date: November 19, 2015
    Inventors: Jeffrey D. Britton, MaryAnn S. Muench, Christopher P. Henry, Tiffany Stewart
  • Publication number: 20150027807
    Abstract: An acoustic barrier structure can include a support structure that defines a plurality of cells, a weight attached to the support structure, and at least one resonant membrane covering one of the plurality of cells. The at least one resonant membrane can comprise at least one weight. The at least one resonant membrane can have an anti-resonant frequency and the support structure with the weight can provide wide frequency band gaps between odd resonance modes while suppressing structure-membrane coupled modes to enable the anti-resonance of the at least one resonant membrane.
    Type: Application
    Filed: September 25, 2014
    Publication date: January 29, 2015
    Inventors: Geoffrey P. McKnight, Chia-Ming Chang, Tiffany A. Stewart, Joshua M. Montgomery, Janet M. Hogan, Thomas A. Zientek, Douglas R. Ludin