Patents Examined by Forrest M Phillips
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Patent number: 11929054Abstract: An object of the present invention is to provide a soundproof material having a practically useful high-level sound absorption coefficient that while maintaining thinness, and further having an expanded sound-absorbable frequency region. A means for solving the problem is a soundproof material comprising: a surface cover layer composed of a fiber material; a back-surface layer laminated onto the surface cover layer, and composed of a porous material with voids interconnected with each other; and a joining layer laminated between the surface cover layer and the back-surface layer, and composed of a joining material, wherein the fiber material has an average fiber diameter of 1 to 10 ?m and an air-permeation volume of 5 to 200 cm3/cm2·sec, and wherein the joining layer has a joint area percentage of 50 to 95% with respect to the entire surface where the surface cover layer and the back-surface layer face each other.Type: GrantFiled: July 26, 2019Date of Patent: March 12, 2024Assignee: MAXELL, LTD.Inventors: Norikazu Matsumoto, Shoko Sakai, Kenji Ohtani, Teruhisa Miyata
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Patent number: 11915679Abstract: An acoustic liner is provided. The acoustic liner includes a face sheet, a back sheet spaced from the face sheet, and a core layer defining a cellular structure disposed between the face sheet and the back sheet. The core layer includes a plurality of first resonant cells coupled to the back sheet. Each of the first resonant cells includes a first cell wall coupled to the back sheet along a first cell wall base edge, the first cell wall extending from the back sheet toward the face sheet, the first cell wall further coupled to the face sheet along a first cell wall top edge, wherein the first cell wall of each of the first resonant cells comprises a surface extension that extends from a surface of the first cell wall.Type: GrantFiled: December 2, 2021Date of Patent: February 27, 2024Assignees: General Electric Company, MRA Systems, LLCInventors: Wendy Wenling Lin, Michael Moses Martinez, Rudramuni Kariveerappa Majjigi, David Patrick Calder, Aaron Goldsholl
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Patent number: 11913481Abstract: The present invention concerns an attenuation device (1) of the fluid flow pulsation along a duct of a hydraulic circuit connected with a hydraulic machine, comprising at least an attenuation module (3) passed through by a pass-through duct (5) configured to be placed in fluid communication with said duct of said hydraulic circuit. In particular, in said attenuation module (3) a first duct (7) is obtained having an opened first end (70) in fluid communication with said pass-through duct (5), and a closed second end, said first duct (7) extending along a curved line comprising a plurality of curved sections, said first duct (7) being adapted to attenuate the pulsation of said fluid flow along said duct of said hydraulic circuit to reduce the vibrations generated by said pulsation of said fluid flow.Type: GrantFiled: June 27, 2019Date of Patent: February 27, 2024Assignee: STEM NUMERICAL ENGINEERING S.R.L.Inventor: Mario Antonio Morselli
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Patent number: 11912009Abstract: A sound insulation material 1 includes a first layer 10 constituted by a polyurethane foam, a second layer 20 that is laminated on a surface of the first layer, the surface being located on a first side, and that is constituted by a sheet-shaped member made from a material other than polyurethane, and a third layer 30 that is laminated on a surface of the second layer, the surface being located on the first side, that is constituted by a polyurethane foam, and that, over its entirety, has a higher density than the density of at least a portion of the first layer.Type: GrantFiled: October 15, 2019Date of Patent: February 27, 2024Assignee: Archem Inc.Inventor: Yusuke Yamanaka
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Patent number: 11917349Abstract: A self-powered mountable speaker bar may include a rechargeable battery and a set of mounting features for use during recreational activities such as powersports, boating, and off-roading. The self-powered mountable speaker bar may include a housing and a set of mounting features that allow the housing to be securely coupled to a vehicle component or other appropriate support. The rechargeable battery may be removeable and may include a set of coupling features such as spring-loaded tabs associated with complementary features of the housing, such as slots. The self-powered mountable speaker bar may include a wireless communication module that interacts with user devices such as smartphones. The housing may be waterproof, dustproof, and/or shock-proof.Type: GrantFiled: February 24, 2021Date of Patent: February 27, 2024Assignee: Sound Extreme Inc.Inventor: Jonathan Lorenzen
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Patent number: 11900907Abstract: A dual layer nonwoven acoustic insulating material having a more densified layer and a less densified layer that is comprised of shoddy fibers and other fibers.Type: GrantFiled: May 18, 2021Date of Patent: February 13, 2024Assignee: Hobbs Bonded Fibers NA, LLCInventor: Karl VanBecelaere
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Patent number: 11900906Abstract: 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: GrantFiled: May 13, 2021Date of Patent: February 13, 2024Assignee: Malmark Bells, Inc.Inventor: Derek Mohr
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Patent number: 11891796Abstract: A housing for an aero-acoustic processing machine having rotational drive apparatus coupled to rotate an air impeller to draw air and material to be processed through an axial inlet system and expel the air and processed material through a transverse outlet. The housing includes an enclosure incorporating at least one layer of noise attenuation materials surrounding the aero-acoustic processing machine, the enclosure having a material inlet port, an air inlet port and an exhaust port for outputting processed product with air. Airflow paths that are required for operation of the aero-acoustic processing machine are provided to enable airflow into the housing whilst significantly reducing noise emission.Type: GrantFiled: April 13, 2018Date of Patent: February 6, 2024Assignee: DAVIES COLLISION CAVE PTY LTDInventor: Colin Rawson
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Patent number: 11893970Abstract: The disclosure relates to acoustic panels and methods for preparing them. The disclosure relates more particularly to panels having a porous facing and to methods for making such panels. One aspect of the disclosure is an acoustic panel comprising a base structure. The base structure has one or more edges, an outward major surface having a total area, and an inward major surface opposing the outward major surface. The base structure has a noise reduction coefficient (NRC) of at least about 0.3. The panel includes a coating layer directly disposed on the outward major surface of the base structure, the coating layer being formed of an open-cell foam. The coating layer has an exterior major surface opposing the outward major surface of the base structure. The coating layer is substantially scattering for light in the wavelength range of 380 nm to 780 nm, and has an absorption coefficient of less than 0.5 for acoustic frequencies in the range of 100 Hz to 10,000 Hz.Type: GrantFiled: August 22, 2022Date of Patent: February 6, 2024Assignee: CertainTeed Ceilings CorporationInventors: David Shackleford, Sizhu You, Steven Jacek, Phillip Evans, Alexis Rile, Michael J. Lembo
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Patent number: 11887570Abstract: This disclosure provides for an auditory modification apparatus to facilitate extraction of information from an auditory observation stream. The approach may be used to reveal features about the environment, or to simplify processing of the incoming audio stream. The apparatus acts on the incoming auditory stream by nature of its shape, and that shape either is passively static or actively manipulated. Preferably, the apparatus has given shape characteristics to reveal features of the environment, such as directionality of a noise, size of an enclosed space, or materials of its construction, that are not otherwise detectable or easy to process with conventional approaches. Further advantage exists in the notion of actively manipulating the shape of the apparatus in conjunction with its operation to facilitate information extraction in a dynamic manner.Type: GrantFiled: December 10, 2019Date of Patent: January 30, 2024Inventor: George A. Economou
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Patent number: 11887573Abstract: The invention concerns a sound insulation element (10), that utilizes a strong force-network as a principle energy dissipating mechanism, whereat the strong force-network is generated through complex interactions of solid particles (14) in a granular system, which leads to formation of maximal number of interconnecting pairs-of-forces according to 3rd Newton's Law, whereat said strong force-network is realized by using a granular material (12) made from at least one solid material with a specific skewed multimodal particles-size-distribution, comprising a granular material (12) consisting of particles (14), and a supporting structure (40) having at least one cavity (42), whereat the at least one cavity (42) is filled with particles (14) of the granular material (12).Type: GrantFiled: May 8, 2019Date of Patent: January 30, 2024Inventors: Igor Emri, Bernd-Steffen V. Bernstorff
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Patent number: 11881198Abstract: A sound-insulation material for a vehicle has high rigidity and is capable of exhibiting sufficient sound insulation performance against noise having a frequency of 500 Hz to 5000 Hz generated in a vehicle, while maintaining low weight. The sound-insulation material for a vehicle of the present invention has a multilayer structure, the material including: a hard layer having tubular cells, the tubular cells being arranged in a plurality of rows; and a soft layer provided on one surface of the hard layer, in which a ratio of a dynamic spring constant Kd to a static spring constant Ks, of a structure having the hard layer and the soft layer, is 0<Kd/Ks?1.5.Type: GrantFiled: January 22, 2019Date of Patent: January 23, 2024Inventors: Kazuki Fukui, Nobuyuki Takahashi
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Patent number: 11881199Abstract: 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: GrantFiled: December 22, 2022Date of Patent: January 23, 2024Assignee: ITT Manufacturing Enterprises LLCInventor: A. David Sandiford
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Patent number: 11872945Abstract: There is provided a sound-absorbing material for a vehicle, capable of stably yielding desired sound absorption performance while reducing weight of the sound-absorbing material for a vehicle. The sound-absorbing material for a vehicle of the present invention has a multilayer structure, including: a core layer in which tubular cells are arranged in a plurality of rows; and an airflow-blocking resin film layer adhered to one surface of the core layer. The relationship between the Young's modulus E (MPa) of the airflow-blocking resin film layer 40 and the surface density M (g/m2) of the layer structure on the first airflow-blocking resin film layer 40 side with respect to the core layer 10 is 0.5<E/M<21.Type: GrantFiled: September 14, 2018Date of Patent: January 16, 2024Assignee: KOTOBUKIYA FRONTE CO., LTD.Inventor: Kazuki Fukui
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Patent number: 11872798Abstract: The invention relates to a method for manufacturing a nonwoven fabric having an air permeability of 2000 l/m2/s or less when measured at a pressure difference of 200 Pa according to EN ISO 9237, the method comprising the steps of: providing at least two sets of fibers, wherein a first fiber set comprises a significant level of splittable fibers and a second fiber set comprises a low level of splittable fibers or no splittable fibers; using the first fiber set to form at least one first fibrous web in a first web formation process and using the second fiber set to form at least one second fibrous web in a second web formation process; stacking the first and second webs so obtained to provide a multilayer web including two distinct layers of fibrous webs; and bonding the multilayer web. The invention further relates to a nonwoven fabric obtainable by such process and the use of such nonwoven fabric in acoustic isolation applications.Type: GrantFiled: January 29, 2019Date of Patent: January 16, 2024Assignee: FIBERTEX NONWOVENS A/SInventors: Ali El-Yousofi, Lars Bjerg Heskjaer
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Patent number: 11872944Abstract: There is provided a sound-insulation material for a vehicle that can reduce the weight thereof and exhibit sufficient sound insulation performance against noise of 500 Hz to 6400 Hz generated in vehicles. The sound-insulation material for a vehicle, of the present invention, includes: a core layer having tubular cells, the tubular cells being arranged in a plurality of rows; an airflow-blocking resin film layer provided on one surface of the core layer; and a decoupling layer provided on the airflow-blocking resin film layer; and an average (P/v)/Za is 2.8 to 10 between 500 and 6400 Hz, where: P and v are respectively a sound pressure and a particle velocity on a surface of the airflow-blocking resin film layer provided on the core layer, the surface being opposite to the core layer; and Za is an acoustic impedance of the decoupling layer.Type: GrantFiled: September 25, 2018Date of Patent: January 16, 2024Inventor: Kazuki Fukui
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Patent number: 11864943Abstract: The invention relates to a stethoscope comprising a stethoscope chestpiece comprising a body member having a bottom surface and an ejector mark disposed on the bottom surface. The stethoscope chestpiece has a weight of at least 50 g, a surface roughness (Ra) no greater than 1.6 microns in an unpolished state, and reflectivity (% R) of at least 60% in an unpolished state. The stethoscope chestpiece can be produced by injection molding, extruding, or pressing a metallic thermoplastic composition into a mould forming a green molded body, debinding a portion of binder material from green molded body forming a brown molded body without reducing the temperature by more than 80° C., and sintering the brown molded body to form the stethoscope chestpiece.Type: GrantFiled: October 2, 2019Date of Patent: January 9, 2024Assignee: 3M Innovative Properties CompanyInventors: Martin B. Kays, Paul R. Cassimus, Brandon J. Storhaug
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Patent number: 11870086Abstract: A tripod includes a main body having a center column with a first end, a second end opposite the first end, and a longitudinal axis extending through the first end and the second end, and a plurality of legs coupled to the center column. The tripod system also includes a battery receptacle supported at the first end of the center column. The battery receptacle has a first interface configured to mechanically and electrically couple to a battery pack. The tripod system further includes a head supported at the second end of the center column. The head has a second interface configured to mechanically and electrically couple to a luminaire. The second interface is complementary to the first interface.Type: GrantFiled: December 6, 2022Date of Patent: January 9, 2024Assignee: Techtronic Cordless GPInventors: Brianna E. Williams, J. Luke Jenkins, Robert Andrew Patrick
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Patent number: 11864717Abstract: The cleaner according to the present disclosure includes a main body forming an airflow path through which air is sucked and exhausted; a dust separation unit disposed in the airflow path and configured to separate dust from the air; a fan module disposed in the airflow path and configured to move the air in the airflow path; and a noise control module including a speaker, and configured to control the output of the speaker to increase a level of the noise of at least one range of the frequency range of 2000 Hz or more and 8000 Hz or less.Type: GrantFiled: January 9, 2019Date of Patent: January 9, 2024Assignee: LG ELECTRONICS INC.Inventors: Jongchan Lee, Geunbae Hwang, Goondong Park
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Patent number: 11869473Abstract: A hollow structure has a hollow body with an annular first space and at least one resonator. In the resonator there is formed an elongated second space with a pair of openings at two ends thereof. Each of the pair of openings opens inwardly toward the interior of the first space. The ratio of the length of a centerline of the second space to the length of a centerline of the first space is within a range of from 0.45 to 0.55. The second space is disposed in a curve along a circumferential surface of the first space and is shaped such that one of the two ends of the second space is folded back toward the other end.Type: GrantFiled: December 21, 2020Date of Patent: January 9, 2024Assignee: Yamaha CorporationInventors: Yoshikazu Honji, Azumi Yoshida