Patents by Inventor Joshua M. Montgomery
Joshua M. Montgomery 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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Publication number: 20230048280Abstract: An acoustic structure presenting a front surface and a back surface is provided. The acoustic structure includes a support layer comprising the back surface, a honeycomb core comprising a thickness defined between a back and a front, and a plurality of walls that define a plurality of honeycomb cells, wherein the plurality of honeycomb cells extend through the thickness of the honeycomb core opening out toward at least the front, and wherein the back of the honeycomb core is affixed to the support layer, a mesh layer affixed to the front of the honeycomb core, and a knit fabric layer affixed to the mesh layer and conforming to the front surface of the acoustic structure.Type: ApplicationFiled: August 16, 2021Publication date: February 16, 2023Applicant: The Boeing CompanyInventors: Jason W. DREXLER, Joseph Ulrich KAUFFMAN, IV, Joshua M. MONTGOMERY, John Christopher WILDE, Phuong Minh NGUYEN, Stephanie Iris METTING
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Publication number: 20210363748Abstract: The present teachings generally relate to an acoustic panel including a backing layer, honeycomb core attached to the backing layer, a mesh layer attached to the honeycomb core, and a face sheet including a flexible acoustic fabric face sheet attached to the mesh layer. The acoustic fabric face sheet can provide improved sound dampening characteristics over, for example, a perforated face sheet, and at a lower manufacturing cost, weight, and a simplified manufacturing process. The acoustic fabric face sheet can be or include a flexible woven and/or knitted fabric including a polymer such as an aromatic polyamide that includes a meta-aramid fiber, or a fiberglass fabric.Type: ApplicationFiled: May 21, 2020Publication date: November 25, 2021Applicant: The Boeing CompanyInventors: Jason W. Drexler, John C. Wilde, Joshua M. Montgomery, Phuong Minh Nguyen, Joseph U. Kauffman
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Patent number: 11056092Abstract: Example methods, panels, and systems are disclosed for providing noise insulation. Noise insulation may be provided by an anti-resonant panel that includes a base panel including a base panel core material and two base panel face sheets, where each of the two base panel face sheets is adjacent to an opposite side of the base panel core material. The anti-resonant panel further includes at least one stiffener-member positioned along the base panel in a defined area of the base panel, where the defined area is less than a full area of the base panel. The stiffener-member includes a stiffener-member core material and two stiffener-member face sheets the stiffener-member face sheets adjacent to an opposite side of the stiffener-member core material.Type: GrantFiled: December 13, 2017Date of Patent: July 6, 2021Assignee: The Boeing CompanyInventors: Adam R. Weston, Joshua M. Montgomery, Chia-Ming Chang, Geoffrey P. McKnight, Adam E. Sorensen
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Publication number: 20190367150Abstract: A sound-damping panel. The sound-damping panel includes a first face sheet. The sound-damping panel also includes a core connected to the first face sheet. The core has a honeycomb structure. Walls of the honeycomb structure are embedded with a viscoelastic material configured to dampen sound in a pre-selected frequency range. The sound-damping panel also includes a second face sheet connected to the core, the second face sheet opposite the first face sheet relative to the core.Type: ApplicationFiled: May 30, 2018Publication date: December 5, 2019Inventors: Craig H. Emerson, Joshua M. Montgomery, Adam Robert Weston
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Publication number: 20190180729Abstract: Example methods, panels, and systems are disclosed for providing noise insulation. Noise insulation may be provided by an anti-resonant panel that includes a base panel including a base panel core material and two base panel face sheets, where each of the two base panel face sheets is adjacent to an opposite side of the base panel core material. The anti-resonant panel further includes at least one stiffener-member positioned along the base panel in a defined area of the base panel, where the defined area is less than a full area of the base panel. The stiffener-member includes a stiffener-member core material and two stiffener-member face sheets the stiffener-member face sheets adjacent to an opposite side of the stiffener-member core material.Type: ApplicationFiled: December 13, 2017Publication date: June 13, 2019Inventors: Adam R. WESTON, Joshua M. MONTGOMERY, Chia-Ming CHANG, Geoffrey P. MCKNIGHT, Adam E. SORENSEN
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Patent number: 9725154Abstract: A conjugate damper for a structural panel includes a constraining sheet extending between a first edge and a second edge. Each of the first edge and the second edge is at least partially coupled to a first surface of the structural panel. The conjugate damper also includes a damping layer coupled between the constraining sheet and the first surface such that, when the structural panel is in a compressively deformed state, a thickness of the damping layer in a direction generally normal to the first surface is decreased relative to a baseline state. The damping layer includes a viscoelastic material.Type: GrantFiled: May 13, 2014Date of Patent: August 8, 2017Assignee: The Boeing CompanyInventors: Cliff L. Chin, Joshua M. Montgomery
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Publication number: 20170080681Abstract: Composite laminates used in structural applications include an interlayer of soft material that provides damping action to reduce noise and vibration. The interlayer may comprise a viscoelastic material which deforms under stress caused by shock, noise or vibration. A reinforcement may be embedded in the viscoelastic material to maintain the mechanical strength and stiffness of the laminate. The reinforcement may include individual or woven fibers or ridged tubes that provide the interlayer with stiffness.Type: ApplicationFiled: December 5, 2016Publication date: March 23, 2017Inventors: Joshua M. Montgomery, Salvatore L. Liguore, Tuan Q. Cao
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Patent number: 9511571Abstract: Composite laminates used in structural applications include an interlayer of soft material that provides damping action to reduce noise and vibration. The interlayer may comprise a viscoelastic material which deforms under stress caused by shock, noise or vibration. A reinforcement may be embedded in the viscoelastic material to maintain the mechanical strength and stiffness of the laminate. The reinforcement may include individual or woven fibers or ridged tubes that provide the interlayer with stiffness.Type: GrantFiled: January 23, 2007Date of Patent: December 6, 2016Assignee: THE BOEING COMPANYInventors: Joshua M. Montgomery, Salvatore L. Liguore, Tuan Q. Cao
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Publication number: 20160185442Abstract: A conjugate damper for a structural panel includes a constraining sheet extending between a first edge and a second edge. Each of the first edge and the second edge is at least partially coupled to a first surface of the structural panel. The conjugate damper also includes a damping layer coupled between the constraining sheet and the first surface such that, when the structural panel is in a compressively deformed state, a thickness of the damping layer in a direction generally normal to the first surface is decreased relative to a baseline state. The damping layer includes a viscoelastic material.Type: ApplicationFiled: May 13, 2014Publication date: June 30, 2016Applicant: The Boeing CompanyInventors: Cliff L. Chin, Joshua M. Montgomery
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Patent number: 9284727Abstract: 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: GrantFiled: September 25, 2014Date of Patent: March 15, 2016Assignee: The Boeing CompanyInventors: Geoffrey P. McKnight, Chia-Ming Chang, Tiffany A. Stewart, Joshua M. Montgomery, Janet M. Hogan, Thomas A. Zientek, Douglas R. Ludin
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Patent number: 9270253Abstract: A hybrid acoustic absorption and reflection resonator can includes a rigid structure defining a cell, a membrane with at least one orifice attached to the rigid structure, and a back sheet attached to the rigid structure and covering the cell. The membrane is configured to reflect acoustic waves in a predetermined range of frequencies. The rigid structure, the membrane, and the back sheet define a Helmholtz cavity; the Helmholtz cavity is configured to absorb acoustic energy at a frequency within the predetermined range of frequencies.Type: GrantFiled: September 25, 2014Date of Patent: February 23, 2016Assignee: The Boeing CompanyInventors: Chia-Ming Chang, Geoffrey P. McKnight, Janet M. Hogan, Joshua M. Montgomery
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Publication number: 20150047923Abstract: A hybrid acoustic absorption and reflection resonator can includes a rigid structure defining a cell, a membrane with at least one orifice attached to the rigid structure, and a back sheet attached to the rigid structure and covering the cell. The membrane is configured to reflect acoustic waves in a predetermined range of frequencies. The rigid structure, the membrane, and the back sheet define a Helmholtz cavity; the Helmholtz cavity is configured to absorb acoustic energy at a frequency within the predetermined range of frequencies.Type: ApplicationFiled: September 25, 2014Publication date: February 19, 2015Inventors: Chia-Ming Chang, Geoffrey P. McKnight, Janet M. Hogan, Joshua M. Montgomery
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Publication number: 20150027807Abstract: 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: ApplicationFiled: September 25, 2014Publication date: January 29, 2015Inventors: Geoffrey P. McKnight, Chia-Ming Chang, Tiffany A. Stewart, Joshua M. Montgomery, Janet M. Hogan, Thomas A. Zientek, Douglas R. Ludin
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Patent number: 8869933Abstract: 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: GrantFiled: July 29, 2013Date of Patent: October 28, 2014Assignee: The Boeing CompanyInventors: Geoffrey P. McKnight, Chia-Ming Chang, Tiffany A. Stewart, Joshua M. Montgomery, Janet M. Hogan, Thomas A. Zientek, Douglas R. Ludin
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Patent number: 8857563Abstract: A hybrid acoustic absorption and reflection resonator can includes a rigid structure defining a cell, a membrane with at least one orifice attached to the rigid structure, and a back sheet attached to the rigid structure and covering the cell. The membrane is configured to reflect acoustic waves in a predetermined range of frequencies. The rigid structure, the membrane, and the back sheet define a Helmholtz cavity; the Helmholtz cavity is configured to absorb acoustic energy at a frequency within the predetermined range of frequencies.Type: GrantFiled: July 29, 2013Date of Patent: October 14, 2014Assignee: The Boeing CompanyInventors: Chia-Ming Chang, Geoffrey P. McKnight, Janet M. Hogan, Joshua M. Montgomery
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Patent number: 8528862Abstract: Systems and methods for reducing noise in aircraft fuselages and other structures are described herein. A noise reduction system configured in accordance with one embodiment of the invention includes an auxetic core, a damping layer, and a constraining layer. In this embodiment, the auxetic core is supported by a structural member, and the damping layer is sandwiched between the auxetic core and the constraining layer. A method for manufacturing a structural assembly in accordance with another embodiment of the invention includes forming a stiffener by positioning a first ply of composite material against a first tool surface, positioning damping material against the first ply, and positioning a second ply of composite material against the damping material to sandwich the damping material between the first and second plies.Type: GrantFiled: October 29, 2012Date of Patent: September 10, 2013Assignee: The Boeing CompanyInventors: Salvatore L. Liguore, Joshua M. Montgomery
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Patent number: 8297555Abstract: Systems and methods for reducing noise in aircraft fuselages and other structures are described herein. A noise reduction system configured in accordance with one embodiment of the invention includes an auxetic core, a damping layer, and a constraining layer. A method for manufacturing a structural assembly in accordance with another embodiment of the invention includes forming a stiffener by positioning a first ply of composite material against a first tool surface, positioning damping material against the first ply, and positioning a second ply of composite material against the damping material to sandwich the damping material between the first and second plies. The method can further include forming a skin by positioning a third ply of composite material against a second tool surface offset from the first tool surface, and attaching the stiffener to the skin by co-curing the first, second and third plies of composite material.Type: GrantFiled: October 24, 2011Date of Patent: October 30, 2012Assignee: The Boeing CompanyInventors: Salvatore L. Liguore, Joshua M. Montgomery
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Publication number: 20120097321Abstract: Systems and methods for reducing noise in aircraft fuselages and other structures are described herein. A noise reduction system configured in accordance with one embodiment of the invention includes an auxetic core, a damping layer, and a constraining layer. A method for manufacturing a structural assembly in accordance with another embodiment of the invention includes forming a stiffener by positioning a first ply of composite material against a first tool surface, positioning damping material against the first ply, and positioning a second ply of composite material against the damping material to sandwich the damping material between the first and second plies. The method can further include forming a skin by positioning a third ply of composite material against a second tool surface offset from the first tool surface, and attaching the stiffener to the skin by co-curing the first, second and third plies of composite material.Type: ApplicationFiled: October 24, 2011Publication date: April 26, 2012Applicant: The Boeing CompanyInventors: Salvatore L. Liguore, Joshua M. Montgomery
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Patent number: 8042768Abstract: Systems and methods for reducing noise in aircraft fuselages and other structures are described herein. A noise reduction system configured in accordance with one embodiment of the invention includes an auxetic core, a damping layer, and a constraining layer. In this embodiment, the auxetic core is supported by a structural member, and the damping layer is sandwiched between the auxetic core and the constraining layer. A method for manufacturing a structural assembly in accordance with another embodiment of the invention includes forming a stiffener by positioning a first ply of composite material against a first tool surface, positioning damping material against the first ply, and positioning a second ply of composite material against the damping material to sandwich the damping material between the first and second plies.Type: GrantFiled: August 5, 2010Date of Patent: October 25, 2011Assignee: The Boeing CompanyInventors: Salvatore L. Liguore, Joshua M. Montgomery
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Publication number: 20100320319Abstract: Systems and methods for reducing noise in aircraft fuselages and other structures are described herein. A noise reduction system configured in accordance with one embodiment of the invention includes an auxetic core, a damping layer, and a constraining layer. In this embodiment, the auxetic core is supported by a structural member, and the damping layer is sandwiched between the auxetic core and the constraining layer. A method for manufacturing a structural assembly in accordance with another embodiment of the invention includes forming a stiffener by positioning a first ply of composite material against a first tool surface, positioning damping material against the first ply, and positioning a second ply of composite material against the damping material to sandwich the damping material between the first and second plies.Type: ApplicationFiled: August 5, 2010Publication date: December 23, 2010Applicant: The Boeing CompanyInventors: Salvatore L. Liguore, Joshua M. Montgomery