Patents Examined by Forrest M Phillips
  • Patent number: 11821201
    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: September 30, 2021
    Date of Patent: November 21, 2023
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Shogo Koga, Shuichi Akasaka
  • Patent number: 11817075
    Abstract: Disclosed herein are implementations of acoustic metamaterial structures and geometric configurations of acoustic metamaterial structures which produce sound amplification or cancellation. An acoustic metamaterial device for using with a sound source includes a plurality of fins, where each fin is made from a very dense material with respect to air which creates the anisotropic properties of the acoustic metamaterial device, where each fin has a length dimension, a width dimension, and a thickness dimension, the width and length dimension being equal and substantially perpendicular to the direction of sound wave propagation from the sound source, where each fin is sized different from other fins along the width and length dimension, and where the plurality of fins are interconnected such that planes formed by the width and length dimension of each fin faces perpendicular to the sound wave propagation direction from the sound source.
    Type: Grant
    Filed: November 29, 2022
    Date of Patent: November 14, 2023
    Assignee: Jabil Inc.
    Inventors: David Donald Logan, Katelyn Christensen, Andrew Thomas Ferguson, Arthur Ray Junior Cruz Paquia, Calvin Saechao
  • Patent number: 11815198
    Abstract: Embodiments described and discussed herein generally relate to resonators for pressurized fluid systems, pressurized fluid systems containing resonators, and methods of reducing acoustic energy within pressurized fluid systems. In one or more embodiments, a resonator includes a first chamber containing an inlet and an outlet and a second chamber containing an inlet, an outlet, and a filter port, where the inlet of the second chamber is in fluid communication with the outlet of the first chamber. The resonator also includes a third chamber containing an inlet and an outlet, where the inlet of the third chamber is in fluid communication with the outlet of the second chamber, and where the outlet of the third chamber is configured to be in fluid communication with a pressure relief device and a fourth chamber encompassing the second chamber and in fluid communication with the second chamber by the filter port.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: November 14, 2023
    Assignee: Smith & Burgess Process Safety Consulting
    Inventors: Dustin Smith, John Burgess
  • Patent number: 11817073
    Abstract: A power tool including an air inlet and an inlet muffler disposed within the air inlet, the inlet muffler comprising a plurality of inlet ports, each of the plurality of inlet ports comprising a peripheral surface defining a port aperture therethrough, at least one of the plurality of inlet ports further comprising a damper material provided on the peripheral surface of the at least one inlet port and further defining the port aperture therethrough.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: November 14, 2023
    Assignee: Techtronic Cordless GP
    Inventors: Ronald J. Hoffman, Scott W. Reed, Ashley B. Amick, Jr.
  • Patent number: 11817074
    Abstract: An airgun moderator employing a stack of acoustic baffles fabricated from fibrous polymeric felt, which degrades in the presence of gunpowder combustion temperatures, thereby providing an effective airgun sound moderator that us ineffective as a firearms silencer.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: November 14, 2023
    Inventor: John A. McCaslin
  • Patent number: 11808279
    Abstract: A centrifugal compressor includes a tubular shape casing extending in an axial direction, a motor stator fixed to an inside of the casing in a radial direction, a shaft disposed inside of the motor stator in the radial direction and extending in the axial direction, a motor rotor fixed to the shaft and facing the motor stator with a gap in the radial direction, a compression unit fixed to an end portion of the shaft on one side in the axial direction, a first thrust magnetic bearing disposed between the motor rotor and the impeller in the axial direction, and a second thrust magnetic bearing disposed on an other side in the axial direction relative to the motor rotor. A magnetic attraction force of the second thrust magnetic bearing toward the other side is larger than a magnetic attraction force of the first thrust magnetic bearing toward the one side.
    Type: Grant
    Filed: September 28, 2022
    Date of Patent: November 7, 2023
    Assignee: Daikin Industries, Ltd.
    Inventors: Kuuma Okada, Hideki Fujiwara
  • Patent number: 11808235
    Abstract: An acoustic liner includes a first face sheet, a second face sheet spaced from the first face sheet, and a plurality of sidewalls extending between the first face sheet and the second face sheet. The plurality of sidewalls defines a plurality of cells. Each cell of the plurality of cells defines a cavity between the first face sheet and the second face sheet. A bulk absorber is disposed within at least one cell of the plurality of cells. The bulk absorber further defines the cavity of the at least one cell of the plurality of cells. The first face sheet defines a plurality of apertures extending through a thickness of the first face sheet. Each aperture of the plurality of apertures is aligned with a respective cell of the plurality of cells.
    Type: Grant
    Filed: July 18, 2022
    Date of Patent: November 7, 2023
    Assignee: ROHR, INC.
    Inventors: John J. Gangloff, Jr., Peter J. Walsh, Danielle L. Grolman, Craig Aaron Reimann, Thomas P. Filburn, Song Chiou, Jeong-Woo Kim, Jeffrey M. Mendoza
  • Patent number: 11807174
    Abstract: Provided are a partition member including a soundproof structure capable of efficiently insulating noise with a lightweight configuration, and an electronic device and a vehicle using the partition member. In the partition member including the soundproof structure, the soundproof structure includes a support body having an opening, and a membrane-like member that is fixed to an opening surface of the support body in which the opening is formed and that vibrates as noise is incident, and a rear surface plate fixed to the support body on a side opposite to the membrane-like member, and the soundproof structure absorbs a sound by a resonance structure formed by a rear surface space surrounded by the rear surface plate, the membrane-like member, and the support body and the membrane-like member, and insulates a sound having a frequency higher than a relative maximum resonance frequency at which a sound absorption coefficient becomes a relative maximum among resonance frequencies of the resonance structure.
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: November 7, 2023
    Assignee: FUJIFILM Corporation
    Inventor: Shinya Hakuta
  • Patent number: 11808037
    Abstract: Described herein is an acoustic ceiling panel comprising: a first air-permeable body comprising a first major surface opposite a second major surface and a side surface extending between the first and second major surfaces, the first body having an NRC value of at least 0.5 as measured between the first and second major surfaces of the first body; and an attenuation coating applied to the second major surface of the body and the side surface of the body, whereby the attenuation coating seals at least a portion of the second major surface and the side surface of the body.
    Type: Grant
    Filed: August 30, 2022
    Date of Patent: November 7, 2023
    Assignee: AWI Licensing LLC
    Inventors: Peter J Oleske, Robert C. Garman, Jacob D. Peterson, Stephen G. Mearig
  • Patent number: 11801660
    Abstract: A laminated acoustic absorption member that includes at least a first fiber layer and a second fiber layer, as well as at least one substrate layer present between the first fiber layer and the second fiber layer, wherein: the first fiber layer has an average flow pore diameter of 0.5-10 ?m and a basis weight of 0.1-200 g/m2; the second fiber layer has an average flow pore diameter of 0.5-10 ?m, the average flow pore diameter of the second fiber layer being equal to or less than that of the first fiber layer, and also has a basis weight of 0.1-200 g/m2; the substrate layer has an air permeability of 40 cc/cm2┬Ěs or greater as measured by the Frazier method, and a basis weight of 1-700 g/m2; and the first fiber layer and the second fiber layer are disposed on a sound-incidence side and a sound-transmission side, respectively.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: October 31, 2023
    Assignees: JNC CORPORATION, JNC FIBERS CORPORATION
    Inventors: Takayuki Hattori, Hidemi Ito
  • Patent number: 11804206
    Abstract: An acoustic attenuation structure includes a periodic structure having a first unit cell, the first unit cell having a first central body and a first axial tube disposed on the first central body and a second axial tube disposed on the first central body, opposite the first axial tube, each of the first axial tube and the second axial tube being in fluid communication with one another through the first central body.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: October 31, 2023
    Assignee: GOODRICH CORPORATION
    Inventors: Julian Winkler, Kenji Homma, Craig Aaron Reimann, Jeffrey Michael Mendoza
  • Patent number: 11798524
    Abstract: An acoustic damper has a sound pickup unit defining a plurality of pickup unit passageways. Hollow flexible tubes are connected to exit openings of the pickup unit passageways and extend outwardly therefrom. The hollow flexible tubes and pickup unit passageways define acoustic paths.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: October 24, 2023
    Assignee: The Board of Regents for the Oklahoma Agricultural and Mechanical Colleges
    Inventor: James Mathew Manimala
  • Patent number: 11788522
    Abstract: A compressor assembly having a high velocity muffler system which produces a particle-free compressor pump feed while reducing noise output from the compressor assembly during compressing operations. The high velocity muffler system is maintenance-free and comprises an inertia filter. The compressor assembly uses a method for producing a compressor pump feed and reducing noise during compressing operations by processing a gas through the high velocity muffler system which has an inertia filter and a muffler chamber to produce a compressor pump feed which can be compressed by a pump assembly.
    Type: Grant
    Filed: February 20, 2021
    Date of Patent: October 17, 2023
    Assignee: Black & Decker Inc.
    Inventors: Mark W. Wood, Stephen J. Vos, Scott D. Craig, Gary D. White, Dalton E. McFarland
  • Patent number: 11780384
    Abstract: The present invention provides an automobile sound insulation panel which suitably implements a lightweight sound insulation panel with an expanded sound isolation-target frequency band and improved sound isolation performance. An automobile sound insulation panel includes a first panel member, a second panel member, and an elastic sheet member positioned between the first panel member and the elastic sheet member. The elastic sheet member includes a first projection-recess part. The first panel member abuts on respective upper opening edges of a plurality of recesses that form the first projection-recess part. Individual air layers exist between the second panel member and the elastic sheet member. A continuous air layer exists between the first panel member and the elastic sheet member.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: October 10, 2023
    Assignee: KASAI KOGYO CO., LTD.
    Inventors: Ichiro Fukumoto, Takafumi Ito
  • Patent number: 11780204
    Abstract: A sound-absorbing article (e.g., a tufted sound-absorbing article) can comprise a backing having a thickness and a plurality of face fibers associated with the backing. Optionally, the face fibers can comprise a plurality of tufts extending through the backing. The backing can define a plurality of perforations that fully extend through the thickness of the backing and are provided in a pattern to determine an acoustic property of the sound-absorbing article. Within at least a portion of the backing, sequential perforations within the pattern of the plurality of perforations can be spaced center-to-center by between 5 mm and 100 mm.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: October 10, 2023
    Assignee: Columbia Insurance Company
    Inventors: Stuart Colam, Barrett Randolph Morton, Andrew Robert Morelli, Jay Peter Vecsey
  • Patent number: 11756521
    Abstract: Provided are a soundproof structure and a soundproof unit that can be reduced in size and thickness in the soundproof structure using Helmholtz resonance. The soundproof structure that includes a housing forming a space therein and having a through hole that allows the space to communicate with an outside, and generates Helmholtz resonance by the space and the through hole, the soundproof structure includes a rear surface plate disposed at a position overlapping the through hole on the space side as viewed from a penetrating direction of the through hole, in which assuming that a diameter of the through hole is ? and a distance from the rear surface plate to an opening surface of the through hole on the space side is d, d?? is satisfied and d?6 mm is satisfied.
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: September 12, 2023
    Assignee: FUJIFILM Corporation
    Inventor: Shinya Hakuta
  • Patent number: 11744924
    Abstract: A stretchable multiple-layer nanocomposite material is provided and includes at least a nanocomposite material layer comprising a network of nanotubes modified with an elastomeric polymer; and at least one additional layer laminated with the nanocomposite material layer. The number of nanocomposite layers and additional layers, the nature and composition thereof, may be varied in a surface direction and/or a thickness direction so as to provide tailored mechanical and physico-chemical properties to a resulting skin that can be used to produce morphing or deployable structures.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: September 5, 2023
    Assignee: NATIONAL RESEARCH COUNCIL OF CANADA
    Inventors: Behnam Ashrafi, Michael Jakubinek, Kurtis Laqua, Yadienka Martinez-Rubi, Benoit Simard
  • Patent number: 11749248
    Abstract: Provided is a soundproof structure that is small and light and can reduce a noise with a high specific frequency of a sound source at a plurality of frequencies at the same time.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: September 5, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Shinya Hakuta, Shogo Yamazoe
  • Patent number: 11745887
    Abstract: An acoustic panel for an aircraft nacelle includes, from a central axis of the nacelle to the exterior thereof, a resistive skin perforated with sound-absorbing micro-perforations, a first attenuation stage, a septum perforated with holes, a second attenuation stage, and a back skin configured to provide the mechanical strength of the acoustic panel. The septum is a planar wall having a thickness greater than that of the resistive skin, preferably greater than 4 mm. Such a panel is configured to attenuate several frequency ranges one of which being a low-frequency range, while optimizing the weight, the cost and the air intake functions. The thickness of the septum, the dimensions of the holes in the septum, the OAR of the septum and the height of the second attenuation stage are adjusted to match the mean attenuated low frequency to the vibration frequency of the aircraft engine.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: September 5, 2023
    Assignee: Airbus Operations (S.A.S.)
    Inventors: Alain Porte, Jacques Lalane, Arnaud Bourhis, Florent Mercat
  • Patent number: 11746705
    Abstract: A method for manufacturing an acoustic element of a sound absorption structure including at least one cylindrical, conical or truncated conical chamber obtained from a flat preform shaped and then assembled in order to obtain the cylindrical, conical or truncated conical shape of the chamber. This manufacturing method makes it possible to obtain an acoustic element that has thin walls and is made from a material suited to its environment. An acoustic element obtained using the manufacturing method, a sound absorption structure comprising at least one such acoustic element and an aircraft powerplant comprising at least one such structure are also described.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: September 5, 2023
    Inventors: Wolfgang Brochard, Laurent Cazeaux, Claire Maffre