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    Hearing protection process and device
    1.
    发明授权
    Hearing protection process and device 失效
    听力保护过程和装置

    公开(公告)号：US08607921B2

    公开(公告)日：2013-12-17

    申请号：US13140309

    申请日：2009-12-16

    申请人： Ali Berker ,  Sharon R Garber ,  Richard W. Greger ,  Marie Aloshyna ep Lesuffleur ,  Smarajit Mitra

    发明人： Ali Berker ,  Sharon R Garber ,  Richard W. Greger ,  Marie Aloshyna ep Lesuffleur ,  Smarajit Mitra

    IPC分类号： H04R25/00

    CPC分类号： G10K11/165 ,  A61F11/08 ,  A61F11/14

    摘要： A hearing protection process comprises (a) providing at least one hearing protection device comprising at least one sound barrier comprising at least one substantially periodic array of structures disposed in a first medium having a first density, the structures being made of a second medium having a second density different from the first density, wherein one of the first and second media is a viscoelastic medium having a speed of propagation of longitudinal sound wave and a speed of propagation of transverse sound wave, the speed of propagation of longitudinal sound wave being at least about 30 times the speed of propagation of transverse sound wave, and wherein the other of the first and second media is a viscoelastic or elastic medium; and (b) interposing the hearing protection device between an acoustic source and an acoustic receiver in the form of a human ear.

    摘要翻译： 听力保护过程包括（a）提供至少一个听力保护装置，其包括至少一个声屏障，其包括设置在具有第一密度的第一介质中的结构的至少一个基本上周期性的阵列，所述结构由具有第一介质的第二介质制成， 第二密度不同于第一密度，其中第一和第二介质中的一个是具有纵向声波的传播速度和横向声波的传播速度的粘弹性介质，纵向声波的传播速度至少为 是横向声波的传播速度的约30倍，其中第一和第二介质中的另一个是粘弹性或弹性介质; 和（b）将听觉保护装置插入在声源和声耳形式的声音接收器之间。

    HEARING PROTECTION PROCESS AND DEVICE
    2.
    发明申请
    HEARING PROTECTION PROCESS AND DEVICE 失效
    听觉保护过程和设备

    公开(公告)号：US20110253153A1

    公开(公告)日：2011-10-20

    申请号：US13140309

    申请日：2009-12-16

    申请人： Ali Berker ,  Sharon R. Garber ,  Richard W. Greger ,  Marie Aloshyna ep Lesuffleur ,  Smarajit Mitra

    发明人： Ali Berker ,  Sharon R. Garber ,  Richard W. Greger ,  Marie Aloshyna ep Lesuffleur ,  Smarajit Mitra

    IPC分类号： A61F11/14 ,  A61F11/06

    CPC分类号： G10K11/165 ,  A61F11/08 ,  A61F11/14

    摘要： A hearing protection process comprises (a) providing at least one hearing protection device comprising at least one sound barrier comprising at least one substantially periodic array of structures disposed in a first medium having a first density, the structures being made of a second medium having a second density different from the first density, wherein one of the first and second media is a viscoelastic medium having a speed of propagation of longitudinal sound wave and a speed of propagation of transverse sound wave, the speed of propagation of longitudinal sound wave being at least about 30 times the speed of propagation of transverse sound wave, and wherein the other of the first and second media is a viscoelastic or elastic medium; and (b) interposing the hearing protection device between an acoustic source and an acoustic receiver in the form of a human ear.

    摘要翻译： 听力保护过程包括（a）提供至少一个听力保护装置，其包括至少一个声屏障，其包括设置在具有第一密度的第一介质中的结构的至少一个基本上周期性的阵列，所述结构由具有第一介质的第二介质制成， 第二密度不同于第一密度，其中第一和第二介质中的一个是具有纵向声波的传播速度和横向声波的传播速度的粘弹性介质，纵向声波的传播速度至少为 是横向声波的传播速度的约30倍，其中第一和第二介质中的另一个是粘弹性或弹性介质; 和（b）将听觉保护装置插入在声源和声耳形式的声音接收器之间。

    Process for Audible Acoustic Frequency Management in Gas Flow Systems
    4.
    发明申请
    Process for Audible Acoustic Frequency Management in Gas Flow Systems 审中-公开
    气体流量系统声音频率管理过程

    公开(公告)号：US20110005859A1

    公开(公告)日：2011-01-13

    申请号：US12920398

    申请日：2009-02-27

    申请人： Ali Berker ,  Manish Jain ,  Smarajit Mitra ,  Sanat Mohanty

    发明人： Ali Berker ,  Manish Jain ,  Smarajit Mitra ,  Sanat Mohanty

    IPC分类号： F01N1/24 ,  E04F17/04

    CPC分类号： G10K11/172 ,  F24F13/0263 ,  F24F13/24 ,  F24F2013/245

    摘要： A sound insulation process comprises (a) providing at least one sound barrier comprising a substantially periodic array of structures disposed in a first medium having a first density, the array comprising at least one row of at least two of the structures, the structures being made of a second medium having a second density that is greater than the first density, the second medium being a viscoelastic medium, an elastic medium, or a combination thereof, and the first medium being a gaseous medium; and (b) placing the at least one sound barrier in at least one at least partially enclosed gas stream in a manner such that the row of structures extends in a direction that is perpendicular to the direction of flow of the gas stream.

    摘要翻译： 隔音过程包括（a）提供至少一个声屏障，包括设置在具有第一密度的第一介质中的基本上周期性的阵列阵列，所述阵列包括至少一排至少两排结构，所述结构被制成 具有大于第一密度的第二密度的第二介质，第二介质是粘弹性介质，弹性介质或其组合，第一介质是气态介质; 和（b）将所述至少一个声屏障放置在至少一个至少部分封闭的气流中，使得所述一排结构沿垂直于所述气流的流动方向的方向延伸。

    Conveyor belt cleaning system
    5.
    发明授权
    Conveyor belt cleaning system 失效
    输送带清洗系统

    公开(公告)号：US07055675B2

    公开(公告)日：2006-06-06

    申请号：US10309790

    申请日：2002-12-04

    申请人： Lance E. Behymer ,  Smarajit Mitra ,  Jerald W. Hall, Jr. ,  Alexander C. Tsuei

    发明人： Lance E. Behymer ,  Smarajit Mitra ,  Jerald W. Hall, Jr. ,  Alexander C. Tsuei

    IPC分类号： B65G45/18

    CPC分类号： B65G15/18 ,  A47J37/044 ,  B08B1/02 ,  B65G39/073 ,  B65G45/12 ,  B65G45/24

    摘要： An assembly for cleaning a conveyor belt system is disclosed. The cleaning assembly is for a conveyor belt system with the type having first and second endless belts which each traverse a separate belt travel path and together define a generally upright article transport path between opposed top faces of the belts. The cleaning assembly includes a belt wiping blade assembly for moving liquids and debris from a belt, an absorbent material downstream from the blade assembly for wiping excess liquid from the belt, and belt edge seals disposed between the opposed top faces of the belts along the article transport path.

    摘要翻译： 公开了一种用于清洁传送带系统的组件。 清洁组件用于具有第一和第二环形带的类型的输送带系统，每个环形带横过独立的带行进路径并且共同限定在带的相对的顶面之间的大致直立的物品输送路径。 清洁组件包括用于从皮带移动液体和碎屑的皮带擦拭刀片组件，用于擦拭来自皮带的多余液体的刮片组件下游的吸收材料，以及沿着皮带设置在皮带的相对顶面之间的皮带边缘密封件 运输路径。