Patents Examined by Forrest M Phillips
  • Patent number: 11186236
    Abstract: A sheet for an automobile interior/exterior material provides excellent sound absorption performance. A sheet for an automobile interior/exterior material, which comprises a nonwoven fabric layer in which a fiber weight is 220 g/m2 to 1,000 g/m2 and an olefin resin layer laminated on one surface of the nonwoven fabric layer. The formation amount of the olefin resin layer is within a range from 100 g/m2 to 500 g/m2, the melt flow rate of the olefin resin is within a range from 1 g/10 minutes to 90 g/10 minutes. The nonwoven fabric layer is impregnated with at least a part of the resin in the olefin resin layer, the olefin resin layer is provided with a plurality of micropores. The sheet for an automobile interior/exterior material as a whole has air permeability of 1 to 60 (cm3/cm2·second) in the thickness direction.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: November 30, 2021
    Assignee: SUMINOE TEXTILE CO., LTD.
    Inventors: Masaharu Shida, Shuichi Yonezawa, Yoshinobu Nochika, Takuma Moriguchi
  • Patent number: 11183912
    Abstract: The described apparatus and method enable alteration of motor properties during operation of a motor. For example, the rotor of the motor may be adjustable, during motor operation, between a first diameter and a larger, second diameter. When the diameter of the rotor increases, the distance between the electromagnetic coils of the stator and the magnets of the rotor increases, thereby reducing the back-electromotor force (back-EMF) of the motor. When the back-EMF of the motor decreases, the torque of the motor decreases but the maximum revolutions per minute (RPM) increases. When the diameter of the rotor decreases, the distance between the electromagnetic coils of the stator and the magnets of the rotor decreases, thereby increasing the back-EMF of the motor. When the back-EMF of the motor increases, the torque of the motor increases but the maximum RPM decreases.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: November 23, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Brian C. Beckman, Austin Brown
  • Patent number: 11180093
    Abstract: A motor vehicle soundproofing part includes a base body made from foam or felt and a surface layer, applied on the base body. The base body has shaping reliefs and the surface layer includes a plurality of through perforations and airtight regions between the perforations. Each perforation has a transverse dimension smaller than 1.5 mm, advantageously smaller than 1 mm and, in particular, between 0.1 mm and 0.5 mm.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: November 23, 2021
    Assignee: FAURECIA AUTOMOTIVE INDUSTRIE
    Inventors: Xavier Bathelier, Valerie Marcel
  • Patent number: 11176921
    Abstract: A silencer for a clutch air booster may include an exhaust retainer including a disk-shaped bottom portion seated on the upper side of an outlet body of the clutch air booster and a retainer hole formed in the center of the bottom portion, a valve seated on the exhaust retainer to cover the retainer hole, a valve housing coupled to an outer side of the exhaust retainer and forming an inner space configured to accommodate the valve, and a rubber cap coupled to an outer side of the valve housing to cover an upper side of the valve housing.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: November 16, 2021
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Jae-Beom Lee
  • Patent number: 11174815
    Abstract: A nacelle inlet may comprise an aft bulkhead, an attachment ring extending in an aft direction from the aft bulkhead, an acoustic liner disposed radially inward from the attachment ring, the acoustic liner comprising a proximal skin, a distal skin, and a core disposed between the proximal skin and the distal skin, and a shroud extending longitudinally between a forward side of the shroud and an aft side of the shroud and extending circumferentially between a first end of the shroud and a second end of the shroud, wherein the shroud defines a plenum disposed between the acoustic liner and the shroud, the plenum is in fluid communication with the core via perforations in the distal skin. The plenum may serve to attenuate low frequency noise known as “buzz saw” tones and/or alleviate pressure resonance conditions that may cause structural damage to the engine fan blades.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: November 16, 2021
    Assignee: Rohr, Inc.
    Inventors: Christian Soria, Wentaur Eugene Chien
  • Patent number: 11168474
    Abstract: An object of the present invention is to provide a sound insulating sheet member that has high sound-insulating performance which exceeds mass law while being relatively light weight, that is highly flexible in design, excellent in versatility, and easy to manufacture so that productivity and economic efficiency can be improved, and a sound insulating structural body or the like using the same. The object thereof is achieved by using a sound insulating sheet member comprising at least a sheet having rubber elasticity and a plurality of resonant portions, wherein the resonant portions are provided in contact with a sheet surface of the sheet, each of the resonant portions including a base part and a weight part, and the weight part being supported by the base part and having a larger mass than the base part.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: November 9, 2021
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Shogo Koga, Shuichi Akasaka
  • Patent number: 11164559
    Abstract: Passively controlled acoustic metamaterials allow transmission of low amplitude acoustic (sound) waves having a resonance frequency and reflect waves having a substantially different frequency. Such materials also reflect waves having the resonance frequency when those waves have an amplitude exceeding a threshold. High amplitude resonance waves cause a resonance membrane contained in unit cells of the metamaterial to contact a rigid structure that is positioned at a longitudinal constraint distance from the resonance membrane in each unit cell. Such contact changes the resonance frequency of the membrane, thereby causing reflection of high amplitude waves. Actively controlled acoustic metamaterials include a ferromagnetic layer on the membrane and an electromagnetic positioned in each unit cell. Activation of the electromagnetic displaces the membrane and thereby shifts the resonance frequency of the membrane, on demand.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: November 2, 2021
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Taehwa Lee, Hideo Iizuka
  • Patent number: 11164552
    Abstract: A bell and hammer rotational device is shown and described. The bell and hammer rotational device includes a frame which is made up of at least two side walls. The frame has a spindle rotatably secured thereto. A rotational device is coupled to the spindle such that the spindle will rotate the rotational device, when the spindle is rotated. At least one bell is secured about a perimeter of the rotational device. A bell hammer is secured to the frame. The bell hammer is positioned such that it will strike the at least one bell, at least once, with each revolution of the rotational device.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: November 2, 2021
    Assignee: MALMARK INC.
    Inventor: Derek Mohr
  • Patent number: 11156317
    Abstract: Example noise attenuators for use with process control devices are described herein. An example apparatus includes a first plate and a second plate disposed in a fluid passageway of a noise attenuator. The second plate is spaced apart from the first plate. The example apparatus also includes a first support rod extending along a central axis of the fluid passageway. The first support rod is coupled to the first plate and to the second plate. The example apparatus further includes a second support rod extending along an axis parallel to and offset from the central axis. The second support rod is coupled to the first plate and the second plate.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: October 26, 2021
    Assignee: Emerson Process Management Regulator Technologies, Inc.
    Inventor: Justin Lane Masias
  • Patent number: 11155993
    Abstract: An object is to provide a soundproofing structure, a partition structure, a window member, and a cage which exhibit high soundproofing performance in a broad frequency band, can be miniaturized, can ensure ventilation properties, and have a light transmittance. Provided is a soundproofing structure including: a plate-like member which has a plurality of through-holes passing therethrough in a thickness direction; and a frame member which includes an opening portion, in which membrane vibration of the plate-like member is enabled by fixing the plate-like member to a peripheral edge of the opening portion of the frame member, an average opening diameter of the through-holes is in a range of 0.1 ?m to 250 ?m, and a first unique vibration frequency of the membrane vibration of the plate-like member is present in a range of 10 Hz to 100000 Hz.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: October 26, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Shinya Hakuta, Shogo Yamazoe, Hiroshi Komatsu
  • Patent number: 11158299
    Abstract: This invention provides an acoustic metamaterial unit cell, consisting of a frame, a constraint stick placed in the frame and a piece of membrane covering at least one surface of the frame. This invention also provides an acoustic metamaterial plate comprised of the provided unit cells and a composite structure of acoustic materials. Additionally, the invention provides a method to design the operating frequency bands by modifying the structure and material properties of the frame, the constraint stick and the membrane in the proposed acoustic metamaterial. The proposed structure shows a priority in fabrication, stability and service life.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: October 26, 2021
    Assignee: Component Technologies, L.L.C.
    Inventors: Yu Chunren, Huang Lifan
  • Patent number: 11149602
    Abstract: A valve assembly for a vehicle exhaust system includes at least one pipe enclosing an exhaust gas flow path, the pipe defining a central axis, and at least one flexible flap positioned within the exhaust gas flowpath. The at least one flexible flap has one fixed edge held fixed to the pipe and extends to a distal edge that is free to bend in response to an increase in exhaust gas flow pressure to provide a variable restriction to flow through the pipe that varies in response to a pressure difference upstream and downstream of the at least one flexible flap.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: October 19, 2021
    Assignee: Faurecia Emissions Control Technologies, USA, LLC
    Inventor: Matthias Berger
  • 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: 11143069
    Abstract: A vehicle exhaust system includes a hot end having one or more hot end exhaust components that treat emissions generated by an engine and a cold end that includes at least one cold end component that attenuates noise. At least one acoustic volume is in parallel or serial to the hot end to further attenuate noise.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: October 12, 2021
    Assignee: Faurecia Emissions Control Technologies, USA, LLC
    Inventors: James Egan, Thorsten Keesser, Dieter Fahrlaender
  • Patent number: 11136820
    Abstract: A mechanical module for filtering vibrations, designed to be mounted at least in part inside a casing of an electromechanical actuator, comprises a mechanical member for filtering vibrations (34), being in one piece and extending along a longitudinal axis (X34) designed to be aligned with an axis of rotation of a rotor of an electric motor. The member (34) comprises a first end portion (35) and an intermediate portion (36). The first end portion (35) comprises a first ring (37). The intermediate portion (36) is connected to the first end portion (35). The first ring (37) of the first end portion (35) has a first diameter that is greater than a greatest dimension of the intermediate portion (36) measured in a plane orthogonal to the longitudinal axis (X34). The first end portion (35) further comprises a plurality of first arms (38), each first arm (38) connecting the intermediate portion (36) to the first ring (37).
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: October 5, 2021
    Assignee: SOMFY ACTIVITES SA
    Inventors: Cyril Schuehmacher, Sébastien Lemaître, Jérôme Pezet
  • Patent number: 11135983
    Abstract: An acoustic damping part for arrangement in a motor vehicle, a method for producing a sound-insulated vehicle body, and a motor vehicle, in particular a passenger car is provided. The acoustic damping part comprises a sound insulation element, in particular a foam element, for substantially planar contact with at least one portion of a motor vehicle body, in particular an end wall, in order to reduce the transmission of sound into a passenger compartment. Furthermore, the acoustic damping part has at least one plug part connected to the sound insulation element with a plug for insertion into an opening of a vehicle body component or component composite. This serves to produce a non-positive and/or positive connection of the acoustic damping part with material of the vehicle body component or component composite that forms the opening.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: October 5, 2021
    Assignee: Volkswagen Aktiengesellschaft
    Inventor: Nadja Weidner
  • Patent number: 11131360
    Abstract: Methods, systems, and devices are described for isolating a crystal oscillator assembly from shock and/or vibration inputs. A system may include one or more vibration isolators coupled between the crystal oscillator assembly and the base structure, and each of the vibration isolators may include a spring material layer and a damping material layer. The spring material layer may provide a spring force between the crystal oscillator assembly and the base structure. The damping material layer may be adhered to at least one side of the spring material layer, and may provide a damping force between the crystal oscillator assembly and the base structure. Some vibration isolators may further include a constraint layer adhered to the damping material layer, such that the damping material layer is coupled between the constraint layer and the spring material layer.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: September 28, 2021
    Assignee: Viasat, Inc.
    Inventors: Steven Shrinkle, Kenneth Larson, Christopher Haas
  • Patent number: 11120783
    Abstract: A composite article configured for mitigating noise, vibration, and harshness includes a substrate having a first stiffness. The composite article includes a structural film formed from a composition and disposed on the substrate in a pattern that is arranged to dampen a sound wave having a first frequency and a first amplitude and propagatable in a first direction to a second frequency that is less than the first frequency and a second amplitude that is less than the first amplitude. The composite article includes a coating layer disposed on the pattern and configured to dampen the sound wave in the first direction and in a second direction that is perpendicular to the first direction. The composite article has a second stiffness that is greater than the first stiffness. A method of forming the composite article is also described.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: September 14, 2021
    Assignee: GM Global Technology Operations LLC
    Inventors: Seongchan Pack, Su Jung Han, Martin S. Kramer
  • Patent number: 11114080
    Abstract: Sound absorption units for fluid ducts include two acoustically coupled pairs of Helmholtz resonators. The two resonators within each pair have identical resonance frequency, however the upstream resonator within each pair is partly filled with an acoustically lossy porous material, so that the upstream resonator within each pair has greater acoustic loss than its coupled downstream resonator. The upstream pair of resonators has a relatively low resonance frequency, while the downstream pair of resonators has a relatively high resonance frequency. The combination of frequency mismatch between the resonator pairs, and loss mismatch within each resonator pair, produces consistently high sound absorption across a broad frequency spectrum.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: September 7, 2021
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Taehwa Lee, Hideo Iizuka
  • Patent number: 11107452
    Abstract: Provided is an asymmetric three-dimensional lattice structure in which physical properties of a strut of a symmetric three-dimensional lattice structure is asymmetrically changed so as to adjust a band gap and a frequency range of a wave propagated in a particular direction in the three-dimensional lattice structure. An embodiment of the present disclosure also provides a lattice structure having six struts, four nodes, a first coating layer, and a second coating layer. The basic structure of the six struts is formed of polymer and the strut's basic structure has a same length L and radius r. Some struts may have a different thickness ratio between the first coating layer and the second coating layer, or may be coated with different materials to thereby have different properties.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: August 31, 2021
    Inventor: Yong Suk Won