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51. 发明授权

US3894169A Acoustical damping structure and method of preparation 失效
标题翻译：声阻尼结构及其制备方法
公开(公告)号：US3894169A
公开(公告)日：1975-07-08
申请号：US37904373
申请日：1973-07-13
申请人： ROCKWELL INTERNATIONAL CORP
发明人： MILLER DARROW L
IPC分类号： E04B1/82 , E04B1/84 , G10K11/168 , G10K11/04
CPC分类号： E04B1/82 , E04B2001/8461 , G10K11/168 , Y10T428/249986 , Y10T428/249991 , Y10T428/31515 , Y10T428/31551 , Y10T428/31554 , Y10T428/31569 , Y10T428/31573 , Y10T428/31598 , Y10T428/31663 , Y10T428/3183 , Y10T428/31909
摘要： A three-layer composite acoustical damping coating of elastomer base materials, in which the temperature and frequency at which the maximum damping occurs in the damping layer can be adjustable by integrating proper matrix materials and properties within the elastomer. A primer coating, e.g. a silicone primer, is first applied to the surface of a structure to form a bonding base for two succeeding acoustical coatings. To inhibit the transmission of sound into and through the structure a second absorber coat of filled matrix elastomer, e.g. a silicone containing tungsten particles, is applied to the bonding base coat. Such second coat is followed by a third coat having a suitable polymer matrix, such as a polyurethane or an epoxy, which may be unfilled or filled, e.g. with siliceous particles, in such a degree as to be acoustically impedance matched to the velocity of the incoming sound waves and density of surrounding medium whereby sound reflection is obviated. The composite coating therefore behaves as an acoustical attenuator to prevent surface reflection of sound.
摘要翻译：弹性体基材的三层复合声阻尼涂层，其中在阻尼层中发生最大阻尼的温度和频率可以通过在弹性体内积分适当的基体材料和性质来调节。底漆涂层，例如首先将硅氧烷底漆施加到结构的表面以形成用于两个后续声学涂层的粘合基底。为了抑制声音传播到结构中并穿过该结构，第二吸收层填充的基体弹性体，例如，将含硅氧烷的钨颗粒施加到粘合底涂层上。这样的第二涂层之后是具有合适的聚合物基质的第三涂层，例如聚氨酯或环氧树脂，其可以是未填充的或填充的。具有硅质颗粒，在声学阻抗匹配于入射声波的速度和周围介质的密度，从而消除声音反射。因此，复合涂层作为声衰减器来防止声音的表面反射。

52. 发明授权

US3827529A Sound dampener for a flat engine mounted in the stern of a motor vehicle 失效
标题翻译：用于安装在电动车辆上的平面发动机的声音防撞器
公开(公告)号：US3827529A
公开(公告)日：1974-08-06
申请号：US32688073
申请日：1973-01-26
申请人： FIEM H GILLET KG
发明人： FRIETZSCHE G , KRAUSE P
IPC分类号： F01N1/08 , F01N13/18 , G10K11/04
CPC分类号： F01N13/1872 , F01N1/08 , F01N13/1838 , F01N13/1888 , F01N2450/20 , F01N2450/22 , F01N2470/02 , F01N2470/06 , F01N2470/14 , F01N2470/16 , F01N2470/18
摘要： The invention concerns a sound dampener or muffler for a flat engine mounted in the stern of a motor vehicle which is made of two circumferentially joined shells that form a housing divided into two chambers by a separating wall, with input and output pipes passing through the shell halves and where the wall supports the tuning elements and is provided with perforations for connecting the tuning elements.
摘要翻译：本发明涉及一种用于安装在机动车辆尾部的扁平发动机的声音阻尼器或消声器，其由两个周向连接的壳体构成，壳体由分隔壁形成分为两个室的壳体，输入和输出管道穿过壳体一半并且墙壁支撑调谐元件，并且设置有用于连接调谐元件的穿孔。

53. 发明授权

US3821999A Acoustic liner 失效
标题翻译：声乐内饰
公开(公告)号：US3821999A
公开(公告)日：1974-07-02
申请号：US28645772
申请日：1972-09-05
申请人： MC DONNELL DOUGLAS CORP
发明人： GUESS A , SCHINDLER G
IPC分类号： G10K11/172 , G10K11/04 , E04B1/99 , F01N1/10
CPC分类号： B32B3/266 , B32B3/12 , B32B2307/102 , G10K11/172 , Y10T428/24149 , Y10T428/24174
摘要： An acoustic liner consisting of a perforated honeycomb sandwich panel wherein the axes of the honeycomb cells are tilted relative to the outer surface for more effective absorption of high amplitude sound and shock waves over a relatively narrow band of the frequency spectrum. An application is in the prevention of the harmonic content of the shock pattern from changing to lower frequencies.
摘要翻译：一种由穿孔蜂窝夹层板组成的声衬垫，其中蜂窝单元的轴线相对于外表面倾斜，以便在频谱的相对较窄的频带上更有效地吸收高振幅声波和冲击波。一种应用是防止冲击模式的谐波含量从变化到低频。

54. 发明授权

US3789327A Micro-acoustic waveguide 失效
标题翻译：微波波导
公开(公告)号：US3789327A
公开(公告)日：1974-01-29
申请号：US3789327D
申请日：1972-05-24
申请人： MASSACHUSETTS INST TECHNOLOGY
发明人： WALDRON R , STERN E
IPC分类号： G10K11/04 , G10K11/24 , H03H9/36 , H03H7/30 , H03H9/30
CPC分类号： G10K11/04 , G10K11/24 , H03H9/36
摘要： Apparatus is disclosed including a waveguide structure for controlling propagation of elastic waves including a rigid supporting substrate for suppressing propagation and an overlayer of elastic material for sustaining propagation and having a closed, defined, reflecting boundary surface for confining the elastic waves in the transverse dimensions.
摘要翻译：公开了一种装置，其包括用于控制包括用于抑制传播的刚性支撑衬底和用于维持传播的弹性材料的覆盖层的弹性波的传播的波导结构，并且具有用于限制弹性波在横向尺寸上的封闭的限定的反射边界面。

55. 发明授权

US3782087A Sound reducing housings in textile yarn processing machines 失效
标题翻译：纺织纱线加工机器的减少声音
公开(公告)号：US3782087A
公开(公告)日：1974-01-01
申请号：US3782087D
申请日：1972-06-19
申请人： PALITEX PROJECT CO GMBH
发明人： FRANZEN G , NIMTZ K
IPC分类号： D01H7/86 , D01H1/16 , D01H1/00 , G10K11/04
CPC分类号： D01H1/168 , D01H1/166
摘要： Sound reducing housings in twisters, spinning frames or the like having a plurality of spindle assemblies. The sound reducing housings reduce undesirable sound produced in the machine and are characterized by providing access to the spindle assemblies for servicing while also reducing sound during such servicing. The sound reducing housings include stationary housing elements and movable housing elements mounted on the machine for cooperating with each other for at least partially encapsulating the spindle assemblies and for shielding the interior of the machine. The movable housing elements are displaceable to positions for allowing access by an operator to certain portions of the spindle assemblies for servicing while the stationary housing elements continue to reduce undesirable sound produced by the yarn processing machine.
摘要翻译：具有多个主轴组件的扭转机，纺纱机架等中的减声壳体。减声外壳减少机器中产生的不良声音，并且其特征在于提供对主轴组件的访问以进行维修，同时还在这种维修期间减少声音。减声壳体包括固定壳体元件和安装在机器上的可移动壳体元件，用于彼此协作以至少部分地封装主轴组件并用于屏蔽机器的内部。可移动的壳体元件可位移到用于允许操作者进入主轴组件的某些部分以进行维护的位置，同时静止的壳体元件继续减少由纱线加工机产生的不期望的声音。

56. 发明授权

US3773142A Noise-isolated rocker arm cover 失效
标题翻译：噪音分离的摇臂ARM盖
公开(公告)号：US3773142A
公开(公告)日：1973-11-20
申请号：US3773142D
申请日：1972-10-02
申请人： CATERPILLAR TRACTOR CO
发明人： BRAGG G , JONES N
IPC分类号： F02B77/13 , G10K11/16 , E04B1/99 , G10K11/04
CPC分类号： G10K11/16 , F02B77/13
摘要： A rocker arm cover has a circumferential flange bonded to an underlying elastomeric pad. The pad is further bonded to an underlying channel member having a gasket disposed therein. Circumferentially disposed cap screws extend through the channel member and gasket to removably attach the integrated cover assembly to the head or block of an internal combustion engine.
摘要翻译：摇臂盖具有结合到下面的弹性垫的圆周凸缘。衬垫进一步结合到具有设置在其中的垫圈的下面的通道构件。环形设置的帽螺钉延伸通过通道构件和垫圈以将集成的盖组件可移除地附接到内燃机的头部或块。

57. 发明授权

US3753218A Electro-mechanical acoustic filter 失效
标题翻译：电机声滤波器
公开(公告)号：US3753218A
公开(公告)日：1973-08-14
申请号：US3753218D
申请日：1956-09-21
申请人： US NAVY
发明人： THURSTON G , HILL O , HILLERY H
IPC分类号： G10K11/04 , H04R23/00
CPC分类号： G10K11/04
摘要： 1. A passive hydro-acoustic device for providing band pass filtering and detection of low frequency acoustic pressure signals transmitted through water and with said filtering occurring prior to transduction of said signals into electrical energy signals, which comprises input coupling means disposed to provide coupling of acoustic pressure signal intelligence from an external underwater sound field to the interior of said device, a fluid filled housing adapted to be closed by said input coupling means, a hydraulic tube disposed within said housing and in fluid communication with said input coupling means, means in said housing for providing a substantially enclosed air volume in hydraulic shunt relation to said input coupling means, an electrolytic detector cell for providing an electrical signal output and disposed in fluid communication with the end of said hydraulic tube remote from said input coupling means and a fluid filled chamber of substantial capacity disposed in said housing for providing said fluid communication between said hydraulic tube, said detector cell and said air volume means.
摘要翻译： 1.一种用于提供带通滤波和检测通过水传输的低频声压信号的无源水声学装置，并且所述滤波在将所述信号转换成电能信号之前发生，其包括输入耦合装置，其设置成提供从外部水下声场到所述装置的内部的声压信号智能，适于由所述输入联接装置关闭的流体填充的壳体;设置在所述壳体内并与所述输入联接装置流体连通的液压管; 所述壳体用于提供与所述输入耦合装置的水力分流关系中的基本上封闭的空气体积;电解检测器单元，用于提供电信号输出并设置成与远离所述输入耦合装置的所述液压管的端部流体连通;以及流体设置在所述外壳中的大量容量的填充室 g，用于在所述液压管，所述检测器单元和所述空气量装置之间提供所述流体连通。

58. 发明授权

US3748167A Method for applying an acoustic barrier 失效
标题翻译：应用声学障碍的方法
公开(公告)号：US3748167A
公开(公告)日：1973-07-24
申请号：US3748167D
申请日：1971-08-09
申请人： US NAVY
发明人： LEPOR M
IPC分类号： E04B1/82 , G10K11/04
CPC分类号： E04B1/82
摘要： AN ACOUSTIC BARRIER IS COATED ON ONE SIDE OF A WALL TO EFFECTIVELY ATTENUATE AND REFLECT ACOUSTIC ENERGY IMPINGING THE WALL''S OPPOSITE SIDE. SPRAYING OR BRUSHING ON A LAYER OF A SEMILIQUID SOUND ABSORBING MATERIAL AND COVERING THE SOUND ABSORBING MATERIAL AFTER IT HAS SOLIDIFIED WITH A SPRAYED-ON ADHESIVE RESIN SEPTUM ALLOWS A COMPLETE CONTINUOUS COVERING OF A WALL SURFACE IRRESPEC-

TIVE OF ITS CONFIGURATION. THUSLY, RIGID MOUNTING DEVICES WHICH OTHERWISE ACT AS SOUND CONDUITS ARE ELIMINATED AND BY APPLYING SUCCESSIVE LAYERS OF THE SOUND ABSORBING MATERIAL AND SEPTUMS, A HIGHLY EFFECTIVE ACOUSTIC BARRIER IS FABRICATED AT MINIMAL COST.

59. 发明授权

US3613825A Sound-absorbing coating for the partition wall of a motor vehicle 失效
标题翻译：用于电动车辆的分隔壁的吸音涂层
公开(公告)号：US3613825A
公开(公告)日：1971-10-19
申请号：US3613825D
申请日：1970-03-25
申请人： DAIMLER BENZ AG
发明人： MAIER ROLF
IPC分类号： B60R13/08 , G10K11/04
CPC分类号： B60R13/08
摘要： A sound-absorbing coating for the partition wall of a motor vehicle in which the partition wall and coating are provided with substantially aligned openings for the passage therethrough of a part such as a cable, a pipe, a linkage or the like; the coating is provided on the surface opposite the partition wall with an elastic cover which closes off the opening in the coating; an opening in the cover is elastically expanded when the part is extended through the same.

60. 发明授权

US3574108A Sound deadening metal laminate 失效
标题翻译： SOUND DEADENING METAL LAMINATE
公开(公告)号：US3574108A
公开(公告)日：1971-04-06
申请号：US3574108D
申请日：1968-05-13
申请人： AMERICAN CYANAMID CO
发明人： LEWIS ARMAND FRANCIS
IPC分类号： B32B15/00 , B32B15/08 , B64C1/40 , C09J175/04 , E04B1/84 , E04B1/86 , E04C2/26 , F16L9/02 , F16L13/10 , B32B3/10 , G10K11/04
CPC分类号： F16L13/103 , B32B15/00 , B32B15/08 , B64C1/40 , C08L63/00 , C08L2666/14 , C08L2666/28 , C09J175/04 , E04B1/86 , E04B2001/8461 , E04B2001/8476 , E04B2001/848 , E04B2001/849 , E04C2/26 , F16L9/02 , Y10T428/24331 , Y10T428/26 , Y10T428/266 , Y10T428/31605 , Y10T428/31692
摘要： METAL LAMINATES COMPRISING A THINNER OUTER METAL SKIN LAYER AND A THICKER PERFORATED CORE LAYER BONDED TOGETHER WITH A POLYURETHANE RESIN-BASED ADHESIVE ARE DISCLOSED. THE CORE LAYER CAN BE PROVIDED WITH A SECOND OUTER METAL LAYER. THE CORE LAYER HAS A THICKNESS OF 5 TO 1000 MILS, THE OUTER LAYERS HAVE A THICKNESS OF 1 TO 100 MILS, WITH THE THICKNESS RATIO OF THE CORE LAYER TO THE OUTER LAYER BEING AT LEAST 4:1. THE OPEN AREA OF THE CORE LAYER CAN RANGE FROM 40 TO 70%; THE PERFORATIONS ARE SUBSTANTIALLY VOID OF ADHESIVE.

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