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1. 发明授权

US5500494A System for modifying operation of pneumatic tool 失效
标题翻译：气动工具修改操作系统
公开(公告)号：US5500494A
公开(公告)日：1996-03-19
申请号：US421090
申请日：1995-04-13
申请人： Gary A. Ligman
发明人： Gary A. Ligman
IPC分类号： B25D17/12 , F01N1/16 , F01N3/02
CPC分类号： F01N1/165 , B25D17/12
摘要： Apparatus for use in combination with a compressed air powered tool having an air exit port to modify the sound of the tool during operation. The apparatus includes a helical coil compression spring having a plenum and defining restricted, radially disposed flow paths communicating with the plenum. A spring support holds the spring in position on the tool and air passing from the air exit port of the tool enters the spring plenum and passes through the restricted, radially disposed flow paths. An adjustment mechanism moves the coil spring segments, varies the length of the spring, and varies the size of the restricted, radially disposed flow paths. The spring support prevents bending of the spring.
摘要翻译：用于与具有空气出口的压缩空气动力工具组合使用的装置，以在操作期间改变工具的声音。该装置包括具有增压室的螺旋线圈压缩弹簧，并限定与气室连通的限定的径向设置的流动路径。弹簧支撑件将弹簧保持在工具上的适当位置，并且从工具的空气出口通过的空气进入弹簧室，并通过限制的径向设置的流动路径。调节机构移动螺旋弹簧段，改变弹簧的长度，并改变限制的，径向设置的流动路径的尺寸。弹簧支撑件防止弹簧弯曲。

2. 发明授权

US5189267A Pneumatic tool muffler system 失效
标题翻译：气动工具消声器系统
公开(公告)号：US5189267A
公开(公告)日：1993-02-23
申请号：US708247
申请日：1991-05-31
申请人： Gary A. Ligman
发明人： Gary A. Ligman
IPC分类号： B25D17/12 , B25F5/00 , F01N1/08 , F01N7/00
CPC分类号： B25B21/00 , B25F5/00
摘要： Heat shrink tubing is disposed about a pneumatic tool and heat shrunk into position on the tool. Foraminous material is located between the tubing and tool in a restricted fluid-flow passageway extending between a tool air flow outlet and an end of the heat shrunk tubing.
摘要翻译：热收缩管围绕气动工具设置并热收缩到工具上的位置。有孔材料位于管道和工具之间的限制流体流动通道中，该通道在工具气流出口和热缩管之间延伸。

3. 发明授权

US4756230A Sound attenuator for pneumatic motors 失效
标题翻译：气动马达声音衰减器
公开(公告)号：US4756230A
公开(公告)日：1988-07-12
申请号：US943734
申请日：1986-12-19
申请人： Jerry D. Shew
发明人： Jerry D. Shew
IPC分类号： B25D17/12 , F01N13/00 , F01N1/08
CPC分类号： F01N13/001 , B25D17/12
摘要： A reciprocating piston and cylinder pneumatic motor with a sound-reducing system that diffuses exhausting air by directing it across the curved outer surface of the cylinder.
摘要翻译：具有减声系统的往复式活塞和气缸气动马达，其通过将排气空气引导通过气缸的弯曲外表面而扩散排气。

4. 发明授权

US4624339A Sound-proofing casing for a pneumatic percussive drill 失效
标题翻译：用于气动冲击钻的防爆套管
公开(公告)号：US4624339A
公开(公告)日：1986-11-25
申请号：US667735
申请日：1984-11-02
申请人： Frederic E. Marcel , Francois J. M. Maume
发明人： Frederic E. Marcel , Francois J. M. Maume
IPC分类号： B25D17/00 , B25D17/11 , B25D17/12 , E21B1/00 , E21B1/30 , F02B77/13 , F01N1/08
CPC分类号： B25D17/12 , B25D17/00 , B25D17/11 , F02B77/13 , Y10S173/02
摘要： The internal absorbent layer (9) of the casing delimits an internal volume (10) around the drill (1), which volume is divided on either side of the exhaust orifice (3) by two transverse partitions (13A, 13B) into three successive expansion chambers (11A, 11B, 11C) between the exhaust orifice (3) and the outlet opening (12) to the air outside the casing.
摘要翻译：壳体的内部吸收层（9）限定了钻孔（1）周围的内部容积（10），该体积在排气孔（3）的两侧被两个横向隔板（13A，13B）分成三个连续的在排气孔（3）和出口（12）之间的膨胀室（11A，11B，11C）到壳体外部的空气。

5. 发明授权

US4424883A Silencer for pneumatic equipment 失效
标题翻译：消声器用于气动设备
公开(公告)号：US4424883A
公开(公告)日：1984-01-10
申请号：US356446
申请日：1982-03-09
申请人： Franco Musiani
发明人： Franco Musiani
IPC分类号： B25C1/04 , B25D17/11 , B25D17/12 , F01N1/08 , F01N1/24
CPC分类号： B25D17/12 , B25C1/047
摘要： Disclosed herein is a silencer constituted by a casing, open at the lower extremity made to communicate with the source of compressed gases, and closed at the top by a cover, inside which are placed, from the bottom upwards, a first element, a filter and a second element which, jointly with the inner surface of the casing, define a first, a second and a third expansion chamber, respectively, for the compressed gases.The first expansion chamber communicates with the open extremity of the casing, the second contains the aforementioned filter, while the third, via a slit made in the cover, communicates with the outside. The first and second expansion chamber are inter-communicating because of through holes drilled in the first element, and likewise the second and third expansion chamber are inter-communicating because of through holes drilled in the second element.
摘要翻译：本文公开了一种消音器，其由在下端开口以与压缩气体源连通的壳体构成，并且在顶部由盖子封闭，其内部从底部向上放置第一元件，过滤器以及与壳体的内表面共同限定用于压缩气体的第一，第二和第三膨胀室的第二元件。第一膨胀室与壳体的开口端连通，第二膨胀室包含上述过滤器，而第三膨胀室经由盖中形成的狭缝与外部连通。第一和第二膨胀室由于在第一元件中钻出的通孔而相互连通，并且同样地，第二和第三膨胀室由于在第二元件中钻出的通孔而相互连通。

6. 发明授权

US4303133A Compressed-gas-operated reciprocating-piston devices 失效
标题翻译：压缩气动往复活塞装置
公开(公告)号：US4303133A
公开(公告)日：1981-12-01
申请号：US125085
申请日：1980-02-27
申请人： Reginald O. Godolphin
发明人： Reginald O. Godolphin
IPC分类号： B25D17/12 , F01N13/00 , B21J3/00
CPC分类号： F01N13/001 , B25D17/12 , Y10S173/02
摘要： A compressed-gas-operated reciprocating-piston device, e.g. a concrete breaker, rock drill or chipping hammer, has a cylinder component of composite construction, comprising a rigid inner metal tube in which the piston reciprocates and a moulded outer sleeve of rubber or plastics material, e.g. polyurethane, which surrounds the tube over the majority of its length and is bonded thereto. The sleeve has three integral moulded longitudinal ribs in which are moulded longitudinal passages for transmission of compressed air to the cylinder interior. An outer tubular muffler of rubber or plastics material surrounds the composite cylinder component and defines a sound-reducing path for exhaust gas from the cylinder to thge atmosphere. The exhaust gas is discharged into spaces defined between adjacent ribs of the sleeve within the muffler, these spaces forming part of an expansion chamber in the muffler. This expansion chamber communicates with the atmosphere either directly through exhaust ports or via a restriction and a second expansion chamber to a final duct leading to an exhaust opening in the muffler wall.
摘要翻译：压缩气体操作的往复活塞装置，例如。混凝土破碎机，凿岩机或切屑锤，具有复合结构的圆筒部件，其包括刚性内金属管，活塞在其中往复运动，橡胶或塑料材料的模制外套，聚氨酯，其在其大部分长度上围绕管并且结合到其上。套筒具有三个整体成型的纵向肋，其中模制的纵向通道用于将压缩空气传送到气缸内部。橡胶或塑料材料的外部管状消声器围绕复合气缸部件并且限定了用于从气缸到大气的废气的减声路径。废气被排放到消声器内的套筒的相邻肋之间限定的空间中，这些空间形成消声器中的膨胀室的一部分。该膨胀室直接通过排气口或通过限制和第二膨胀室与大气连通到通向消声器壁中的排气口的最终管道。

7. 发明授权

US4243110A Pneumatic percussion drill with exhaust cooling and lubrication of chuck end 失效
标题翻译：气动冲击钻具有排气冷却和卡盘端润滑
公开(公告)号：US4243110A
公开(公告)日：1981-01-06
申请号：US10438
申请日：1979-02-08
申请人： James T. Clemenson , Robert R. Vincent
发明人： James T. Clemenson , Robert R. Vincent
IPC分类号： B25D17/08 , B25D17/12 , B25D17/26 , B25D15/00 , B25D17/22
CPC分类号： B25D17/12 , B25D17/084 , B25D17/265 , Y10S173/02
摘要： A pneumatic percussion rock drill includes a muffler casing surrounding the drill cylinder part and sealingly engaged with the drill housing so that exhaust air from the percussion motor flows forward through ports in a forward housing member into a chamber containing the drill chuck, the chuck rotation gearing, and the drill stem shank. Exhaust air is used to cool and lubricate the chuck parts before exiting from the drill onto the feed mechanism located below the drill housing.
摘要翻译：气动冲击凿岩机包括围绕钻筒部分并与钻孔壳体密封接合的消声器壳体，使得来自冲击马达的排出空气通过前壳体构件中的端口向前流动到包含钻夹头的腔室中，卡盘旋转齿轮，和钻柄柄。排气用于冷却和润滑卡盘部件，然后从钻头退出到位于钻头壳体下方的进给机构上。

8. 发明授权

US4168754A Impact tool 失效
标题翻译：冲击工具
公开(公告)号：US4168754A
公开(公告)日：1979-09-25
申请号：US791053
申请日：1977-04-26
申请人： Bengt V. Nyholm
发明人： Bengt V. Nyholm
IPC分类号： B25D17/02 , B25D17/12
CPC分类号： B25D17/02 , Y10S173/02 , Y10T29/49865 , Y10T74/20864 , Y10T74/2087
摘要： A vibration damper for an impact tool comprises a damping material which at least partly surrounds the working part of the tool, a heat shrinkable sleeve for holding the damping material in place on the working part of the tool.
摘要翻译：用于冲击工具的振动阻尼器包括至少部分地围绕工具的工作部分的阻尼材料，用于将阻尼材料保持在工具的工作部分上的适当位置的热收缩套筒。

9. 发明授权

US4030553A Percussion tool with noise reducing characteristics and method of making 失效
标题翻译：打击乐器具有降噪特性和制作方法
公开(公告)号：US4030553A
公开(公告)日：1977-06-21
申请号：US589022
申请日：1975-06-23
申请人： Thomas H. Rockwell
发明人： Thomas H. Rockwell
IPC分类号： B25D17/02 , B25D17/11 , B25D17/12 , B25D17/24
CPC分类号： B25D17/11 , B25D17/02 , Y10S173/02
摘要： A method of modifying a percussion tool to provide noise reduction, and a percussion tool having effective noise damping characteristics.In the method of the present invention, a troublesome noise frequency radiated by the tool is identified, and a resonant bending mode shape for the tool is determined, which bending mode shape corresponds to the identified noise frequency. The tool is then assembled and a structural discontinuity is introduced at a point along the length of the tool which is a predetermined axial distance from a selected antinode of the bending mode shape to provide an impedance mismatch at that point.The tool, which is of predetermined length, is formed of one or more sections, each of which is of a selected length. The lengths of the sections are carefully determined such that when the tool is in assembled condition, impedance mismatches are provided at selected points along the length of the tool, to provide noise reduction of several troublesome noise frequencies.
摘要翻译：一种修改敲击工具以提供降噪的方法，以及具有有效噪声阻尼特性的冲击工具。

10. 发明授权

US3895648A Valves 失效
标题翻译：阀门
公开(公告)号：US3895648A
公开(公告)日：1975-07-22
申请号：US43185474
申请日：1974-01-09
申请人： STOLL KURT , HIHN GERHARD
发明人： STOLL KURT , HIHN GERHARD
IPC分类号： F16K11/044 , B25D17/12 , F15B11/06 , F15B21/04 , F16K31/12 , F16K15/02
CPC分类号： B25D17/12 , F15B11/06 , F15B21/008 , F15B21/044 , Y10T137/2544 , Y10T137/8122
摘要： A quick-acting air relief valve is formed of a valve casing with a cylindrical chamber which has an inlet opening for connection to a pneumatic source, a vent opening for connection to atmosphere and a transverse bore ending in the chamber for connection to an air operated device. A valve member is displaceable inside the chamber and has on its underside an annular groove of curved cross-section which opens conically outwards. This forms a lip on the valve member which rests elastically against the inner wall surface of the cylinder. On the underside of the valve member is a valve sealing member which engages a collar-shaped connection which projects into the chamber around the vent opening. The vent opening is formed with a funnel-shaped, conical, widened section in the broadest part of which is arranged a filter of sound-absorbing material.
摘要翻译：快速作用的空气安全阀由具有圆柱形腔室的阀壳体形成，所述圆柱形腔室具有用于连接到气源的入口，用于连接到大气的通气开口和终止于室中的横向孔，用于连接到空气操作设备。阀构件可在腔室内移动，并且在其下侧具有弯曲横截面的环形槽，其向外开口。这在阀构件上形成唇缘，弹性地抵靠气缸的内壁表面。在阀构件的下侧是阀密封构件，该阀密封构件接合围绕通气开口突出到腔室中的环形连接。通风口形成有漏斗形，锥形，加宽的部分，其最宽的部分布置有吸声材料的过滤器。

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