With Perforated Or Porous Face And Honeycomb-like Core Patents (Class 181/292)
  • Patent number: 11688378
    Abstract: Systems for building modular quarter-wavelength resonators, and arrays of said resonators, include interlocking blocks having channels in them. Different block varieties can include those having straight channels and those having curved channels, to facilitate assembly of resonators of any desired configuration. Resonator length, and therefore resonance frequency, can be easily designed by adjusting the number of blocks used for a particular resonator.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: June 27, 2023
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Taehwa Lee, Hideo Iizuka, Ryohei Tsuruta
  • Patent number: 11680542
    Abstract: A thrust reverser door includes a backskin including an interior surface and an exterior loft surface. The thrust reverser door further includes a cover plate including a cover plate body having a first side and a second side opposite the first side. The thrust reverser door further includes a grid structure mounted to the second side of the cover plate body and the interior surface of the backskin.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: June 20, 2023
    Assignee: Rohr, Inc.
    Inventor: Jennifer Davis
  • Patent number: 11634904
    Abstract: A soundproof fume discharge conduit adapted to be arranged between a ventilation system and an outlet chimney, the conduit defining a fume path therein, wherein at least one side surface of the conduit is provided with at least two protrusions, each protrusion internally defining a respective step-shaped recess, whereby the path is provided with at least two step-shaped recesses adapted to reflect sound waves propagating along the path, and wherein the step shape of each recess is defined by two first walls, which are incident at a first end thereof, and at least one wall of the two first walls is coated with a first sound absorbing material.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: April 25, 2023
    Inventor: Marco Peter Cudicio
  • Patent number: 11566564
    Abstract: A system for dampening noise generated by a gas turbine engine is disclosed. In various embodiments, the system includes a fan exit guide vane having a leading edge, a trailing edge and a pocket that extends in a chordwise direction between the leading edge and the trailing edge; and an acoustic panel configured to be received within the pocket, the acoustic panel including a back sheet, a face sheet and a core disposed between the back sheet and the face sheet, the core having a first cavity extending between a first wall and a second wall and a second cavity disposed within the first cavity.
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: January 31, 2023
    Assignee: Raytheon Technologies Corporation
    Inventors: Anthony R. Bifulco, Duncan R. C. Lee
  • Patent number: 11562727
    Abstract: A Helmholtz resonator having a plurality of resonator chamber modules formed into an array. The array is configured to dampen sound. A module of the plurality of resonator chamber modules includes a first chamber and a second chamber. The first and second chambers have different lengths and are tuned to dampen different frequencies of sound.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: January 24, 2023
    Assignee: ITT Manufacturing Enterprises LLC
    Inventor: A. David Sandiford
  • Patent number: 11420368
    Abstract: The object of the invention can be a method of manufacturing a product in the form of a sandwich comprising a core and outer layers. The outer layers may be composed of composite material comprising a fiber-reinforced polymeric matrix. The method uses an insert of heat-resistant material, for example silicone. The object of this invention can be to provide a method of manufacturing a sandwich that dissociates the choice of material of the core of the sandwich from the choice of the material of the outer layers.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: August 23, 2022
    Inventors: Gaëtan Mao, Nicolas Dumont
  • Patent number: 11415055
    Abstract: An alternating clockwise and counterclockwise helicoid cell structure for use in acoustic panels. The cell structure geometry may be easily replicated and tiled using additive manufacturing. The cell structure has at least an outer cavity and an inner cavity. The cavities are coaxial, share the same height, same entrance side, and same cell structure floor. The inner cavity includes a number of equal-volume inner chambers rotated uniformly in a first direction around the shared central axis; and the outer cavity includes a second number of equal-volume outer chambers rotated uniformly in an opposite direction to the first direction around the shared central axis. In various embodiments, one or more perforated baffles may extend, internally, across a chamber, perpendicular to direction of sound waves at the location of the perforated baffle. In various embodiments, one or more port openings from the outer cavity to the inner cavity may be present.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: August 16, 2022
    Inventors: Shawn Alstad, William B. Schuster
  • Patent number: 11359543
    Abstract: A turbine engine has: a compressor; a combustor; a turbine, a gas flowpath passing consecutively through the compressor, combustor, and turbine; and inlet member along the gas flowpath upstream of the compressor. The inlet member includes the unitarily-formed single piece combination of: a three dimensional (3D) lattice portion; and a nose cap body surrounding the lattice portion.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: June 14, 2022
    Assignee: Raytheon Technologies Corporation
    Inventors: Lawrence A. Binek, Jesse R. Boyer, Evan J. Butcher, Michael Winter, Jesus A. Garcia, Sean R. Jackson
  • Patent number: 11325323
    Abstract: A method for producing an acoustically resistive structure includes the steps of creating, consolidating and cutting a first layer of reinforcing fibres embedded in a first thermoplastic resin having a first melting point so as to obtain an interlayer, a step of laying a second layer of reinforcing fibres against a first face of the interlayer, a second consolidation step of consolidating the second layer of reinforcing fibres embedded in a second thermoplastic resin having a second consolidation temperature lower than the first melting point of the first resin so as to obtain a non-perforated external layer bound to the interlayer, a step of perforating the external layer and a step of laying an internal layer on a second face of the interlayer. An acoustically resistive structure obtained from the method as well as a sound-absorption panel including such an acoustically resistive structure are also described.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: May 10, 2022
    Inventors: Karl Simon, Florian Ravise, Denis Brossard, Florian Chotard
  • Patent number: 11242822
    Abstract: A structured panel is provided that includes a first skin with a plurality of perforations, a second skin and a core. The core forms a plurality of cavities vertically between the first skin and the second skin. Each of the cavities is respectively fluidly coupled with one or more of the perforations. The cavities include a first cavity. An element of the core is configured with a multi-layered structure. The multi-layered structure includes a first layer and a second layer attached to the first layer. The first layer is configured with a first rib projecting into the first cavity.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: February 8, 2022
    Assignee: Rohr, Inc.
    Inventors: Mark R. Gurvich, Georgios S. Zafiris, Jeffrey A. Anderson, Jose S. Alonso-Miralles, Milan Mitrovic, Terry Muy, George Hoehn, Timothy Olson
  • Patent number: 11231234
    Abstract: An acoustic unit includes an acoustically septumized cell, and a vapor chamber attached across the cell. The vapor chamber is configured to employ vapor-liquid phase changing to help move heat past the cell.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: January 25, 2022
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Yeongching Lin, Tai-Yun Huang, Takumi J. Jinmon, Takayuki Sugiyama, Gaohua Zhu
  • Patent number: 11227576
    Abstract: An acoustic liner and a method of attenuating noise are provided. The acoustic liner includes a face sheet, a back sheet spaced from the face sheet, and a core layer extending between the face sheet and the back sheet. The core layer includes a plurality of resonant cells, each resonant cell including at least one cell wall coupled to the back sheet along a cell wall base edge. The at least one cell wall extends from the back sheet at an angle toward the face sheet. The at least one cell wall further coupled to the face sheet along a cell wall top edge. The resonant cell is formed in a predetermined shape and contains a volume in a space defined by the at least one cell wall, the back sheet, and the face sheet. The cell wall base edge length is greater than the cell wall top edge length.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: January 18, 2022
    Inventors: Wendy Wenling Lin, Michael Moses Martinez, Rudramuni Kariveerappa Majjigi, David Patrick Calder, Aaron Goldsholl
  • Patent number: 11149637
    Abstract: An engine nacelle for a turbofan engine, having a nacelle wall and an engine inlet, wherein the nacelle wall has a stationary downstream section and an upstream section that is displaceable in the axial direction, and the displaceable upstream section is displaceable between a first upstream position and a second downstream position. A ring-shaped seal is provided, formed between the stationary section and the displaceable section of the nacelle wall, wherein, in the first position of the displaceable section, the engine nacelle forms a ring-shaped additional flow channel that extends from the outer side of the nacelle wall to the engine inlet and via which ambient air can flow into the engine inlet, and the ring-shaped additional flow channel is closed in the second position of the displaceable section, wherein the stationary section, the ring-shaped seal and the displaceable section adjoin each other.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: October 19, 2021
    Inventor: Predrag Todorovic
  • Patent number: 11151971
    Abstract: An acoustic panel for attenuating sound and a method of making the acoustic panel. A septum structure is created comprising a layer of chopped fibers between layers of uncured epoxy. The structure is forced onto the open ends of the cells so that the edges of the cell walls cut the structure into pieces, with each piece having the same cross-sectional size and shape as one of the cells, and the pieces are pushed further into the cells to a specific position. The epoxy layers are cured, and holes are created in the cured epoxy layers to expose the chopped fibers and create septum layers within the cells. The chopped fibers may be sufficiently long and/or strong to provide structural support across each cell but sufficiently short and/or weak to be cut by the edge of the cell wall, and may melt at a higher temperature than the epoxy cures.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: October 19, 2021
    Assignee: Spirit AeroSystems, Inc.
    Inventor: Amitabh Vyas
  • Patent number: 11052987
    Abstract: 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: Grant
    Filed: May 30, 2018
    Date of Patent: July 6, 2021
    Assignee: The Boeing Company
    Inventors: Craig H. Emerson, Josh M. Montgomery, Adam Robert Weston
  • Patent number: 11028774
    Abstract: An acoustic panel for a turbomachine, in particular for an aircraft, includes two skins that are substantially parallel and between which extend cavities forming Helmholtz resonators, one of the skins being perforated by orifices opening into the cavities and forming necks of the Helmholtz resonators, vibrating masses being provided in at least some of the cavities and connected to cavity walls by an elastic junction housed in the cavity.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: June 8, 2021
    Assignee: SAFRAN
    Inventor: Nicola Piccirelli
  • Patent number: 11008112
    Abstract: A Laminar Inducing Apparatus (LIA) inducing laminar airflow to a turbine engine or a propulsion fan. The LIA produces turbulent-free airflow with a light aerospace structure that can replace single purpose structure in the wing or empennage. Laminar airflow to the propulsion fan or the turbine engine is ensured in a greater number of flight conditions and angles of attack. Active control of flight can be enhanced by the manipulating the turbulent boundary surface as a flight control surface. LIA simply reduces the risk of FOD or bird strike damage. In addition to the engineered, laminar benefits, LIA provides greater safety from ground ingested FOD and more silent vertical take-off and landing. In summary, LIA ensures laminar airflow and acoustic attenuation to a propulsion fan or a turbine engine for a greater number of flight conditions, angles of attack, and from ground ingested FOD during vertical takeoff and landing.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: May 18, 2021
    Inventor: Bryan B Solstin
  • Patent number: 10971129
    Abstract: A soundproof structure has at least one soundproof cell including a frame having a hole portion and a film fixed to the frame so as to cover the hole portion. The soundproof cell is disposed in an opening member having an opening in a state in which a film surface of the film is inclined with respect to an opening cross section of the opening member and a region serving as a ventilation hole, through which gas passes, is provided in the opening member.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: April 6, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Shogo Yamazoe, Shinya Hakuta, Masayuki Naya, Tadashi Kasamatsu
  • Patent number: 10961913
    Abstract: An acoustic liner for a turbine engine, the acoustic liner includes a support layer that includes a set of partitioned cavities with open faces, a facing sheet operably coupled to the support layer such that the facing sheet overlies and closes the open faces, a set of perforations located in the facing sheet and in fluid communication with a corresponding one of the cavities to form a set of acoustic resonators, and at least a subset of the perforations have an axially-oriented, relative to the axial flow path, inlet.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: March 30, 2021
    Assignee: MRA SYSTEMS, LLC
    Inventors: Graham Frank Howarth, Andrew Michael Roach, Steven Thomas Davies, Richard David Cedar, Michael Moses Martinez, Timothy Richard DePuy
  • Patent number: 10837367
    Abstract: An exemplary geared turbomachine assembly includes an acoustic treatment that is in an unducted area of a geared turbomachine.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: November 17, 2020
    Assignee: Raytheon Technologies Corporation
    Inventor: Amr Ali
  • Patent number: 10823059
    Abstract: Acoustic core segments include splicing resonant cells that resemble a first segment of a whole resonant cell configured to overlap and align with counterpart splicing resonant cells of another acoustic core segment so as to define a splice joint. The splicing resonant cells include one or more fastening elements configured to couple with corresponding counterpart splicing resonant cells thereby together defining coupled resonant cells. Acoustic liners have an acoustic core assembly that includes a first acoustic core segment mechanically joined with a second acoustic core segment by a combination of splicing resonant cells of the first acoustic core segment overlapping and aligning with splicing resonant cells of the second acoustic core segment so as to define a splice joint, and a plurality of fastening elements coupling splicing resonant cells of the first acoustic core segment with splicing resonant cells of the second acoustic core segment.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: November 3, 2020
    Assignee: General Electric Company
    Inventors: David Michael Herman, Wendy Wenling Lin
  • Patent number: 10793282
    Abstract: A liner assembly includes a core and a septum coupled to the core. The liner assembly also includes a facesheet coupled to the septum. The facesheet includes a plurality of slots defined therethrough. Each slot of the plurality of slots is substantially continuous over a selected portion of a surface and perpendicular to or parallel to a centerline of the liner assembly.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: October 6, 2020
    Assignee: The Boeing Company
    Inventors: Zachariah Beach VanDeMark, Leonard J. Hebert
  • Patent number: 10739016
    Abstract: An underlayment system is provided that includes a plurality of protrusions that extend from a common base member. The protrusions and base member can include an opening therethrough that allows for subsequent layers of material, such as adhesive, to interact and bond to each other. The protrusions are arranged in such a way to contain a wire, string, or heating element, within a receiving area. The arrangement of the protrusions allow for routing of the wire, string, or heating element in a variety of angles, bends, and other routing layouts.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: August 11, 2020
    Assignee: Progress Profiles SpA
    Inventor: David D. Larson
  • Patent number: 10720136
    Abstract: An acoustic attenuation device includes resonator panels stacked in a thickness direction of the device. Each resonator panel is tuned to a different frequency range and includes a plurality of openings through which excited air resonates. The resonator panels are placed adjacent to other resonator panels such that all openings are accessible to the environment.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: July 21, 2020
    Inventors: Bart F. Zalewski, William B. Dial
  • Patent number: 10676919
    Abstract: Two or more soundproof cells arranged in a two-dimensional manner are provided. At least one of the soundproof cells is a first soundproof cell configured to include a first frame having a first through-hole. At least one of the other soundproof cells is a second soundproof cell including a second frame having a second through-hole and a film fixed to the second frame. A first shielding peak frequency, which is determined by the first through-hole of the first soundproof cell and at which a transmission loss is maximized, is present on a lower frequency side than a first natural vibration frequency of the film of the second soundproof cell, and sound in a predetermined frequency band centered on the first shielding peak frequency is selectively insulated.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: June 9, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Shogo Yamazoe, Shinya Hakuta, Tadashi Kasamatsu, Masayuki Naya
  • Patent number: 10639964
    Abstract: An air vent is mounted in a vehicle window frame. The air vent includes a one-piece body having an interior face and an exterior face. A passive ventilation feature includes an air pathway that extends between a first opening in the interior face to a second opening in the exterior face. A forced air ventilation feature is carried by the body. The forced air ventilation feature includes a ventilation fan, an exhaust outlet and a closure for the exhaust outlet that is displaceable between open and closed positions.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: May 5, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Juanito Yu Co, Leonard Anthony Shaner
  • Patent number: 10632936
    Abstract: The invention disclosed herein is an automotive acoustic panel including a porous sound-absorption material made from a polymer and an expanded perlite. One or more silane compounds may be coupled or coated onto the expanded perlite while a coupling agent and a chemical foaming agent may additionally be added to the automotive acoustic panel.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: April 28, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Paul Kenneth Dellock, Stuart C. Salter, Richard Gall, David Brian Glickman, Michael A. Musleh
  • Patent number: 10542363
    Abstract: A laser cuts overlapping ribbons of acoustic material into acoustic devices. An automatically controlled manipulator includes an end effector having groups of placement tools for simultaneously placing multiple acoustic devices in a cellular core. The placement tools include mandrels provided with vacuum pickups for picking up and holding the acoustic devices during transport to the core. A vision system aligns the placement tools with the cells of the core. The end effector includes a thermal radiation device for bonding the acoustic devices to the core.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: January 21, 2020
    Assignee: The Boeing Company
    Inventors: Eric Herrera, Noel Timothy Gerken, John Scott Bauman
  • Patent number: 10532539
    Abstract: A plate assembly for a motor vehicle may include a first plate, a second arranged substantially parallel to the first plate, the second plate defining a plurality of perforations, and a mesh core including a plurality of wire bundles, the core arranged between the plates, wherein the mesh core is rigidly joined to an inner surface of each plate via the perforations.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: January 14, 2020
    Assignee: Ford Global Technologies, LLC
    Inventor: Yuri Anatoly Karpenko
  • Patent number: 10506903
    Abstract: Methods and apparatus for debris separation generally comprise a vacuum hose attachment comprising a collar and an attachment body. The attachment body further comprises an external face, external face openings, nubs, valley, an internal baffle, and internal baffle openings. In some embodiments, the external face openings are arranged in a lattice pattern and separated by nubs in a first direction and valleys in a second direction. In some embodiments, the attachment body may further comprise handgrips. The present invention also includes a method for separating debris via a vacuum hose attachment.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: December 17, 2019
    Inventor: Jack M. King
  • Patent number: 10480412
    Abstract: A structure ensuring acoustic attenuation of a flow of a first fluid and heat exchange between a first fluid and a second fluid. The structure includes a first wall which is perforated, a second wall, and a plurality of intermediate walls extending between the first wall and the second wall. For each intermediate wall, there is a pipe intended to receive the second fluid and inscribed within the intermediate wall. Such a structure makes it possible to optimally integrate the acoustic wave attenuation function and the heat exchange function.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: November 19, 2019
    Assignee: Airbus Operations (S.A.S.)
    Inventor: Maxime Zebian
  • Patent number: 10465707
    Abstract: A panel for lining a gas turbine engine fan casing includes a honeycomb core sandwiched between a backing skin and an outer skin. The backing skin is attached to an inner surface of the casing such that the outer skin forms a radially inward facing surface of a fan duct of the engine. The panel is joined along its sides to similar neighbouring panels such that, in use, the joined panels form a row of panels along the inner surface of the casing. The outer skin or the backing skin includes two face sheets bonded on top of each other, which are arranged such that their edges along each panel side that joins to a neighbouring panel are staggered in the direction of the row. The interfaces between the abutting face sheet edges are therefore correspondingly staggered in the direction of the row.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: November 5, 2019
    Assignee: ROLLS-ROYCE PLC
    Inventors: Ian C D Care, Stephen O Osiyemi
  • Patent number: 10431196
    Abstract: There is provided a soundproof structure that can selectively block sound having a specific frequency emitted from equipment, automobiles, and general households and can change the cutoff frequency of the sound in accordance with a change in the frequency of sound to be blocked. The above problem is solved by providing a laminated film, in which two or more films each including one or more holes drilled therein are laminated, and two rigid frames, which fix the laminated film so as to be interposed from both sides of the laminated film, and making at least parts of the one or more holes in the respective films of the laminated film overlap each other.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: October 1, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Masayuki Naya, Shinya Hakuta, Shogo Yamazoe
  • Patent number: 10415471
    Abstract: A gas turbine engine may include at least one of a fan inlet case and a bypass duct case. Additionally, the gas turbine engine may include a variable volume acoustic damper coupled to the at least one of the fan inlet case and the bypass duct case, wherein the variable volume acoustic damper is configured to damp acoustic energy. The variable volume acoustic damper may include a case and a diaphragm movably coupled within the case. An acoustic volume may be defined by a position of the diaphragm relative to the case and the acoustic volume may correspond to and may be configured to damp acoustic energy of a gas turbine engine.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: September 17, 2019
    Inventor: Ian T. Marchaj
  • Patent number: 10410617
    Abstract: A panel (10) for sound suppression consists of a multiplicity of rigid elements (12) that extend parallel to each other, with gaps between adjacent rigid elements. Within each gap a vortex chamber (15) is defined to attenuate acoustic waves. The elements (12) may have curved edge portions (14), the edge portions (14) of adjacent elements (12) overlapping to define the vortex chamber (15), and also defining a first channel (16a) and a second channel (16b) communicating with the vortex chamber (15) at its periphery and aligned with a tangential component, such that if a fluid were to flow in through either channel (16a or 16b) the fluid would enter the vortex chamber (15) with a rotational sense relative to the vortex chamber (15), the rotational sense being the same for both the channels (16a, 16b). Such a sound-attenuating panel may for example be used as part of a wall of a loudspeaker housing (50).
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: September 10, 2019
    Assignee: Flare Audio Technologies Limited
    Inventor: Davies Roberts
  • Patent number: 10373599
    Abstract: An object is to provide a soundproofing structure which exhibits high soundproofing performance in a broad frequency band, can be miniaturized, can ensure ventilation properties, and has a light transmittance, and a cylindrical structure, a window member, and a partition member including this soundproofing structure. Provided is a soundproofing structure including: a soundproofing cell which includes a frame having a frame hole portion passing therethrough and a film that covers the frame hole portion and is fixed to the frame, in which the film has a plurality of through-holes passing therethrough in a thickness direction, an average opening diameter of the through-holes is in a range of 0.1 ?m to 250 ?m, and a vertical direction of a film surface is disposed so as to be inclined with respect to a direction of a sound source to be soundproofed.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: August 6, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Shinya Hakuta, Shogo Yamazoe, Hiroshi Komatsu
  • Patent number: 10363726
    Abstract: An acoustic liner having a honeycomb core is fabricated by forming septa in a sheet of material, and assembling the sheet of material and the core. During the assembly process, the septa are respectively inserted as a group into cells of the core.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: July 30, 2019
    Assignee: The Boeing Company
    Inventors: Geoffrey Allen Butler, Justin Honshune Lan, Noel T. Gerken, Garry M. Duschl, Benjamin Julius Day
  • Patent number: 10293389
    Abstract: A metal sheet that features a substructure of a first aluminum alloy and at least one reinforcement that is pressed into at least one surface of the substructure, wherein the reinforcement has in at least a direction extending parallel to the surface a large extent in relation to the thickness of the metal sheet and consists of a second aluminum alloy that is harder than the first aluminum alloy.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: May 21, 2019
    Inventors: Ronald Sanders, Hartmut Baumgart
  • Patent number: 10244662
    Abstract: A server rack door has a first dimension and a second dimension orthogonal to the first dimension and includes a first group of first obstructions arranged along the first dimension. The first obstructions define a first plurality of flow channels. The server rack door further includes a second group including second obstructions arranged along the first dimension and offset from the first obstructions along the second dimension. The second dimension corresponds to a thickness of the server rack door. The second obstructions define a second plurality of flow channels, where the first obstructions and the second obstructions alternate along the first dimension.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: March 26, 2019
    Assignee: International Business Machines Corporation
    Inventors: Scott R. LaPree, Howard V. Mahaney, Jr., Stephen P. Mroz, Michael D. O'Connell
  • Patent number: 10173248
    Abstract: Disclosed herein is a method. The method includes applying a fluid to a perforated upper layer. The perforated upper layer forms an exposed surface of a multi-layer structure. The method also includes allowing the fluid to pass through the perforated upper layer and contact a contaminant within a core layer of the multi-layer structure. The core layer is disposed beneath the perforated upper layer, opposite the expose surface, and is coupled to the perforated upper layer. The method also includes applying ultrasonic energy to the exposed surface of the multi-layer structure using an ultrasonic generator to loosen the contaminant into the fluid. The method also includes removing the fluid with the loosened contaminant from the multi-layer structure.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: January 8, 2019
    Assignee: The Boeing Company
    Inventors: Thomas A. Dean, David Michael Dembeck, Scot D. Fisher, Ieisha C. Hinson, Valerie R. Predmore
  • Patent number: 10160533
    Abstract: An aircraft cabin subfloor construction has flow paths through the subfloor that vent air pockets trapped beneath an air impermeable floor mat on the subfloor where, due to a difference in pressure in the air pockets trapped beneath the floor mat and the air in the aircraft cabin above the floor mat, the air pockets would create bubbles or buckling in the floor mat. The venting of the air pockets beneath the floor mat by the flow paths eliminates the problem of bubbling or buckling in the floor mat.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: December 25, 2018
    Assignee: The Boeing Company
    Inventor: Rocke R. Koreis
  • Patent number: 10087624
    Abstract: The invention relates to a drywall construction for resonance sound absorption. The drywall construction comprises a plurality of drywall profiles and fixed thereto at least one layer of plasterboards having an opening arranged therein. The drywall construction further comprises a resonance chamber in fluid connection with the opening, the resonance chamber and the opening having a size and shape so that sound of predetermined resonance frequencies enters the resonance chamber via the opening.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: October 2, 2018
    Assignee: KNAUF GIPS KG
    Inventor: Andrey Gnutik
  • Patent number: 10032445
    Abstract: An exemplary apparatus attenuates sound in a frequency range, e.g. audible frequencies. A resilient planar membrane has first and second honeycombs with unit cells attached to opposing sides of the planar membrane. Each unit cell has rigid walls extending perpendicular to the planar membrane. Buttresses are mounted inside the unit cells where dimensions of the buttresses result in an alteration of an attenuation versus frequency characteristic in the audible or other frequencies relative to an attenuation versus frequency characteristic without the buttresses.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: July 24, 2018
    Assignee: Northrop Grumman Systems Corporation
    Inventors: Jonathon J. Linch, Scott R. Sorbel
  • Patent number: 9994302
    Abstract: An element (26) for sound absorption is intended for being mounted on components of aircrafts, such as engine nacelles. The element includes a face-sheet (28), which is, at least in a region thereof, acoustically permeable, a substantially sound-reflective back-sheet (30) and a honeycomb layer (32), “sandwiched” between the face-sheet (28) and the back-sheet (30) and defining a mesh structure which has hollow cells (34, 34?) laterally neighboring one another. The cells (34, 34?) are adapted to make the sound waves that enter through the face-sheet (28) and are reflected by the back-sheet (30) resonate inside their side walls. The element (26) has a passage (36) that connects together a group of the cells (34, 34?), thereby causing the cells to acoustically cooperate with one another.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: June 12, 2018
    Inventors: Emanuele Merlo, Pier Giorgio Ferrante, DIego Copiello, Gianni Duccini
  • Patent number: 9938897
    Abstract: An air intake structure for a turbojet engine nacelle includes an inner panel to be attached to a fan casing, and an external panel capable of a translational movement in a longitudinal direction of the nacelle. The external panel incorporates a portion of an air inlet lip able to provide a junction between the inner panel and the external panel, and each of the air inlet lip portion and the inner panel is equipped, at least in the region of a joining end, with an acoustic attenuation structure. In particular, at least one of the joining ends is equipped with a radial buffer able to come into contact with a corresponding joining flange exhibited by the other joining end when the external panel is in a closed position.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: April 10, 2018
    Assignee: AIRCELLE
    Inventors: Jean-Philippe Joret, André Baillard
  • Patent number: 9931825
    Abstract: A composite acoustic liner has a septumized cellular core. Septa are installed in the core as the individual core cells are being formed. Individual tools are used to both form the cells of the core and index the septa within the cells. The septa and the cellular core are cocured.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: April 3, 2018
    Inventors: Noel Timothy Gerken, Eric Herrera, Nicholas John Patz
  • Patent number: 9890657
    Abstract: An example acoustic treatment for a geared turbomachine establishes a portion of the core cowl aft the fan cowl.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: February 13, 2018
    Assignee: United Technologies Corporation
    Inventor: Amr Ali
  • Patent number: 9856745
    Abstract: An exemplary geared turbomachine assembly includes an acoustic treatment that is in an unducted area of a geared turbomachine.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: January 2, 2018
    Assignee: United Technologies Corporation
    Inventor: Amr Ali
  • Patent number: 9849704
    Abstract: An apparatus for mitigating noise in a printer can include a plate having a plurality of holes distributed across the plate and extending through the plate. A portion of the plurality of holes can be dimensioned and configured to absorb acoustic noise across a given frequency band and another portion of the plurality of holes can be dimensioned and configured to absorb acoustic noise across another frequency band in a media path of a printer. The apparatus further can include an acoustic baffling material to cover the plate and that can be configured to dampen the acoustic noise across the given frequency band and the other frequency band.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: December 26, 2017
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Charles Hugh Oppenheimer, Michael Allison, Kevin Lo
  • Patent number: 9783984
    Abstract: A ceiling system comprises a pair of spaced overhead longitudinal grid support members and a light-weight ceiling panel suspended therefrom. The panel may be an acoustical honeycomb panel in one embodiment. Localized elongated reinforced areas or sections are formed on the top facing which support a plurality of hangers mounted on each section. The reinforced sections coincide in arrangement with the layout of the support members and structurally strengthen the top facing in select areas. In one embodiment, each reinforced section may comprise a stiffening spline attached to the top facing. The ceiling panel is hung from the grid support members via the hangers and reinforced sections. Fasteners may be used to attach the hangers to the reinforced sections which resist pullout when the panel is hung. In certain embodiments, the reinforced sections extend longitudinally through a central portion of the panel to prevent sagging between the panel sides.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: October 10, 2017
    Assignee: AWI Licensing LLC
    Inventor: Peter J. Oleske