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118 条记录 (耗时 0.019 秒)

    Sound insulation element
    91.
    发明授权
    Sound insulation element 有权

    公开(公告)号：US11887573B2

    公开(公告)日：2024-01-30

    申请号：US17054852

    申请日：2019-05-08

    申请人： Igor Emri ,  Bernd-Steffen V. Bernstorff

    发明人： Igor Emri ,  Bernd-Steffen V. Bernstorff ,  Pavel Oblak ,  Anatolij Nikonov

    IPC分类号： G10K11/165 ,  G10K11/172

    CPC分类号： G10K11/165 ,  G10K11/172

    摘要： 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). A distribution assigning a number (N) of particles (14) to an equivalent outer diameter (D) of the particles (14) is selected such that the particles (14) form an energy dissipating strong force-network within the at least one cavity (42), wherein the distribution assigning a number (N) of particles (14) to an equivalent outer diameter (D) of the particles (14) is an asymmetric distribution, wherein the distribution of equivalent outer diameters (D) of the particles (14) is multimodal, having several modes, and wherein said multimodal distribution is skewed, such that said multimodal distribution has one maximum mode (i) having a maximum number (Ni) of particles (14) assigned to a fundamental equivalent outer diameter (Di) of particles (14), and wherein said multimodal distribution has at least one preceding mode (i−1) and at least one subsequent mode (i+1).

    Methods and devices for attenuating sound in a conduit or chamber
    94.
    发明授权
    Methods and devices for attenuating sound in a conduit or chamber 有权

    公开(公告)号：US11430422B2

    公开(公告)日：2022-08-30

    申请号：US16543605

    申请日：2019-08-18

    申请人： Staton Techiya LLC

    发明人： Steven Wayne Goldstein

    IPC分类号： G10K11/165 ,  A61F11/10 ,  H04R1/10 ,  G10K11/16 ,  A61F11/06

    摘要： Occlusion devices, earpiece devices and methods of forming occlusion devices are provided. An occlusion device is configured to occlude an ear canal, but other biological and non-biological conduits or chambers can be occluded using the devices and methods herein. The occlusion device includes an insertion element and at least one occluding member or element (which can be expandable) disposed on the insertion element. The occluding member is configured to receive a medium via the insertion element and is configured to expand, responsive to the medium, to contact the ear canal. Alternatively, the occluding member is made of a non-Newtonian fluid and can be enclosed by a balloon or not. Physical parameters of the occlusion device are selected to produce a predetermined sound attenuation characteristic over a frequency band. Use of a non-Newtonian fluid provides additional options or variables in customizing or designing a predetermined sound attenuation characteristic.

    Phononic materials used to control flow behavior
    97.
    发明授权
    Phononic materials used to control flow behavior 有权

    公开(公告)号：US11118613B2

    公开(公告)日：2021-09-14

    申请号：US14811801

    申请日：2015-07-28

    申请人： The Regents of the University of Colorado, a body corporate

    发明人： Mahmoud I. Hussein ,  Sedat H. Biringen ,  Osama R. Bilal ,  Alec Kucala

    IPC分类号： B64C21/00 ,  F15D1/00 ,  B64C21/10 ,  G10K11/162 ,  G10K11/165 ,  G10K11/16

    摘要： A phononic material and a method of using a phononic material for use in interacting with a fluid or solid flow are provided. The phononic material includes an interface surface and a subsurface feature. The interface surface is adapted to move in response to a pressure associated with at least one wave in a flow exerted on the interface surface. The subsurface feature extends from the interface surface. The subsurface feature comprises a phononic crystal or locally resonant metamaterial adapted to receive the at least one wave having the at least one frequency based upon the pressure from the flow via the interface surface and alter the phase of the at least one wave. The interface surface is adapted to vibrate at a frequency, phase and amplitude in response to the manipulated/altered phase of the at least one wave.

    Phononic materials used to control turbulent flow
    98.
    发明授权
    Phononic materials used to control turbulent flow 有权

    公开(公告)号：US10830262B2

    公开(公告)日：2020-11-10

    申请号：US15636639

    申请日：2017-06-29

    申请人： The Regents of the University of Colorado, a body corporate

    发明人： Mahmoud Hussein ,  Sedat Biringen

    IPC分类号： B64C21/00 ,  F15D1/00 ,  F15D1/06 ,  B64C21/10 ,  G10K11/162 ,  G10K11/165 ,  G10K11/16

    摘要： A phononic material and a method of using a phononic material for use in interacting with a fluid or solid flow are provided. The phononic material includes an interface surface and a subsurface feature. The interface surface is adapted to move in response to a pressure, and/or velocity gradients, associated with complex motion of a turbulent flow exhibiting a polarity of frequencies exerted on the interface surface. The subsurface feature extends from the interface surface. The subsurface feature comprises a phononic crystal or locally resonant metamaterial adapted to receive the pressure, and/or velocity gradients, from the turbulent flow via the interface surface and alter the phase and amplitude of a polarity of frequency components of the turbulent flow in order to reduce or increase the kinetic energy of the turbulent flow. The interface surface is adapted to vibrate at a polarity of frequencies, phases and amplitudes in response to the frequency, phase and amplitude of at least one component of the turbulent flow.

    Vehicular interior part including sound absorbing member
    99.
    发明授权
    Vehicular interior part including sound absorbing member 有权

    公开(公告)号：US10807542B2

    公开(公告)日：2020-10-20

    申请号：US16139473

    申请日：2018-09-24

    申请人： TOYOTA BOSHOKU KABUSHIKI KAISHA

    发明人： Takashi Kato

    IPC分类号： B60R13/08 ,  G10K11/162 ,  B60R11/02 ,  B60R13/02 ,  G10K11/165

    摘要： A vehicular interior part includes a sound absorbing member including a hole cover section covering a panel-side hole of a panel in which a functional part is to be arranged, a panel cover section covering the panel, slits arranged between the hole cover section and the panel cover section. The slit includes a peripheral extending portion extending along a hole edge of the panel-side hole and a projecting portion extending from an end of the peripheral extending portion toward the panel cover section and a continuous part is between the projection portions of the adjacent slits. The hole cover section is to be torn off from the sound absorbing member at the continuous parts to be separated from the panel cover section and form a hole such that the functional part in the panel-side hole is to be exposed through the panel-side hole and the hole.