知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

118 条记录 (耗时 0.024 秒)

    Acoustic absorption or damping material with integral viscous damping
    41.
    发明授权
    Acoustic absorption or damping material with integral viscous damping 失效
    声吸收或阻尼材料具有积分粘滞阻尼

    公开(公告)号：US5745434A

    公开(公告)日：1998-04-28

    申请号：US780271

    申请日：1997-01-09

    申请人： William B. Cushman

    发明人： William B. Cushman

    IPC分类号： G10K11/165 ,  G10K11/16

    CPC分类号： G10K11/165

    摘要： Acoustic absorption or vibration damping materials are produced by mixing at least two species of particles into a restricted amount of matrix material in order to produce an acoustic absorption or vibration damping material with tortuous passageways throughout the material. The tortuous passageways of the instant invention serve to: a) reduce acoustic reflectivity at the surface, b) provide channels within which the interfacing medium such as air can interact viscously, c) increase the surface area between interfacing media and, d) improve structural stiffness by adding thickness without adding weight. Particle species within the matrix material are differentiated by their acoustic impedances. A particle species of particular interest is crumb tire rubber from used tires. This material is inexpensive and its use in this application has the societal advantage of making productive use of a material that is currently polluting the environment.

    摘要翻译： 通过将至少两种颗粒混合到限定量的基质材料中来产生声吸收或减振材料，以便在整个材料中产生具有曲折通道的声吸收或减震材料。 本发明的弯曲通道用于：a）降低表面处的声反射率，b）提供通道，其中诸如空气之类的界面介质可以粘合地相互作用，c）增加界面介质之间的表面积，以及d）改善结构 刚度通过增加厚度而不增加重量。 基质材料中的颗粒物质通过其声阻抗来区分。 特别感兴趣的颗粒物质是来自旧轮胎的轮胎橡胶。 这种材料是廉价的，并且在本申请中的用途具有生产性地利用目前污染环境的材料的社会优势。

    Method for producing metal structure
    44.
    发明授权
    Method for producing metal structure 有权

    公开(公告)号：US11437009B2

    公开(公告)日：2022-09-06

    申请号：US16573060

    申请日：2019-09-17

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Norio Inami ,  Go Murasawa

    IPC分类号： C09D7/61 ,  G10K11/165 ,  C08K3/013

    摘要： The present disclosure provides a method for producing a metal structure having holes dispersed in a matrix and having inorganic particles disposed inside the holes, that are capable of moving in the holes independently of the matrix, the method making it possible to increase the proportion of inorganic particles in the metal structure that are capable of moving in the holes independently of the matrix. In the method for producing a metal structure whereby inorganic particles are disposed inside holes dispersed in a matrix so as to be capable of moving independently of the matrix, the hollow particles covering the inorganic particles which are distributed in the matrix of the metal structure are fragmented so that the inorganic particles are disposed inside the holes formed by fragmenting the hollow particles.

    Nanovoided polymer for tunable acoustic damping
    47.
    发明授权
    Nanovoided polymer for tunable acoustic damping 有权

    公开(公告)号：US11189258B2

    公开(公告)日：2021-11-30

    申请号：US16735454

    申请日：2020-01-06

    申请人： Facebook Technologies, LLC

    发明人： Renate Eva Klementine Landig ,  Kenneth Diest ,  Andrew John Ouderkirk

    IPC分类号： G10K11/165 ,  G10K11/178

    摘要： An acoustic element includes a nanovoided polymer layer having a first nanovoid topology in an unactuated state and a second nanovoid topology different than the first nanovoid topology in an actuated state. Capacitive actuation of the nanovoided polymer layer, for instance, can be used to reversibly control the size and shape of the nanovoids within the polymer layer and hence tune its sound damping characteristics or sound transduction behavior, e.g., during operation of the acoustic element. An acoustic element may be configured for passive or active sound attenuation. Various other apparatuses, systems, materials, and methods are also disclosed.

    Methods and devices for attenuating sound in a conduit or chamber
    49.
    发明授权
    Methods and devices for attenuating sound in a conduit or chamber 有权

    公开(公告)号：US10418016B2

    公开(公告)日：2019-09-17

    申请号：US15168020

    申请日：2016-05-28

    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.

    VEHICULAR INTERIOR PART INCLUDING SOUND ABSORBING MEMBER
    50.
    发明申请
    VEHICULAR INTERIOR PART INCLUDING SOUND ABSORBING MEMBER 审中-公开

    公开(公告)号：US20190092254A1

    公开(公告)日：2019-03-28

    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 ,  B60R13/02 ,  G10K11/165

    CPC分类号： B60R13/0815 ,  B60R11/0217 ,  B60R13/0268 ,  B60R13/0884 ,  G10K11/162 ,  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.