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41. 发明授权

US4294330A Mufflers for percussive pneumatic machines 失效
标题翻译：打击式气动机消声器
公开(公告)号：US4294330A
公开(公告)日：1981-10-13
申请号：US113742
申请日：1980-01-21
申请人： Stanley L. Baldwin , Vernon Hampton , Tony F. W. Embleton
发明人： Stanley L. Baldwin , Vernon Hampton , Tony F. W. Embleton
IPC分类号： B25D17/12 , F01N1/02 , F01N1/06 , F01N13/16 , F01N1/08
CPC分类号： F01N13/16 , F01N1/02 , F01N1/06 , F01N2490/155
摘要： A muffler for use with machines such as pneumatic drills consists of an elastomeric housing divided into an admission chamber and a series of muffler chambers. Within the housing are an inlet conduit communicating with the admission chamber and each muffler chamber, an exhaust conduit communicating with each muffler chamber as well as with a tail pipe outside the housing, and a Helmholtz resonator communicating with the admission chamber.
摘要翻译：与气动钻机等机器一起使用的消声器由分为入口室和一系列消声器室的弹性体壳体组成。在壳体内是与入口室和每个消声器室连通的入口管道，与每个消声器室连通的排气管道以及在壳体外部的尾管以及与入口室连通的亥姆霍兹共振器。

42. 发明授权

US4287810A Drive for a pneumatic hammer 失效
标题翻译：驱动气动锤
公开(公告)号：US4287810A
公开(公告)日：1981-09-08
申请号：US37050
申请日：1979-05-08
申请人： Hans Thoma
发明人： Hans Thoma
IPC分类号： B25D9/14 , B25D17/12 , F01L25/02 , F01L21/02
CPC分类号： B25D17/12 , B25D9/14
摘要： A pneumatic drive for a hammer tool has a cylinder; a piston slidably received in the cylinder and dividing the inner space of the cylinder into two cylinder chambers; a drive output member formed as a piston rod attached to the piston and projecting from the cylinder; a pressure-responsive valve for admitting compressed air alternately to the cylinder chambers; and a plurality of spaced, serially arranged cylindrical discharge ports in the cylinder wall for releasing compressed air alternately from the cylinder chambers dependent upon the position of the piston with respect to the discharge ports.
摘要翻译：用于锤工具的气动驱动器具有气缸; 可滑动地容纳在气缸中并将气缸的内部空间分成两个气缸室的活塞; 驱动输出构件，其形成为附接到所述活塞并从所述气缸突出的活塞杆; 用于将压缩空气交替地引导到气缸室的压力响应阀; 以及在气缸壁中的多个间隔开的串联布置的圆柱形排出口，用于根据活塞相对于排出口的位置从缸室交替地释放压缩空气。

43. 发明授权

US4161996A Exhaust muffler 失效
标题翻译：排气消声器
公开(公告)号：US4161996A
公开(公告)日：1979-07-24
申请号：US871393
申请日：1978-01-23
申请人： Miroslav Dolejsi
发明人： Miroslav Dolejsi
IPC分类号： F01N1/00 , B25B21/00 , B25D17/12 , F01N1/08 , F01N1/16 , F01N1/20 , F16K17/00
CPC分类号： F01N1/165 , Y10T137/7851 , Y10T137/7859 , Y10T137/7925
摘要： An exhaust muffler intended for noise dampening of, for instance, pneumatic tools, comprising a variable flow restricting passage, an attenuation chamber and a non-variable flow restricting passage. A valve body is arranged to control said variable flow restricting passage in response to the actual exhaust gas pressure. A movement dampening chamber, partly defined by the valve body, communicates with the atmosphere through a restriction opening to prevent resonance vibration of the valve body.
摘要翻译：用于例如气动工具的噪音抑制的排气消声器包括可变流量限制通道，衰减室和不可变流量限制通道。阀体设置成响应于实际排气压力来控制所述可变流量限制通道。部分由阀体限定的运动阻尼室通过限制开口与大气连通，以防止阀体的共振。

44. 发明授权

US4010819A Arrangement for muffling the exhaust of a pneumatic rock drilling machine 失效
标题翻译：消除气动凿岩机废气的排列
公开(公告)号：US4010819A
公开(公告)日：1977-03-08
申请号：US528908
申请日：1974-12-02
申请人： Gosta Ivar Ekstrom , Karl-Evert Johansson
发明人： Gosta Ivar Ekstrom , Karl-Evert Johansson
IPC分类号： E21B19/086 , B25D17/12 , E21B19/08 , E21B19/087 , F01N3/06
CPC分类号： E21B19/087 , B25D17/12 , Y10S173/02
摘要： An elastomer muffler for the exhaust of a pneumatic percussive tool, which comprises an outer and an inner side wall. The cross-sections of the side walls are C-shaped and the side walls are longitudinally unified for forming a cavity therebetween. The muffler is detachably mounted to the tool by resilient snap action. To advantage, the muffler may be used in connection with a pusher leg arrangement for a rock drill. The muffler, then, is mounted on the pusher leg and the inlet mouth thereof is arranged substantially concentrically with the axis of the hinge connection between the pusher leg and the rock drill but spaced axially from said hinge connection. The exhaust port of the rock drill is also substantially concentrically with the hinge connection but spaced axially therefrom.
摘要翻译：一种用于气动冲击工具排气的弹性体消声器，其包括外壁和内侧壁。侧壁的横截面为C形，并且侧壁纵向统一以在其间形成空腔。消声器通过弹性卡扣动作可拆卸地安装到工具上。有利的是，消声器可以与用于凿岩机的推杆支架结构相结合使用。然后，消声器被安装在推动器支腿上，并且其入口口与推动器支腿和凿岩机之间的铰链连接的轴线基本上同心地布置，但是与所述铰链连接件轴向间隔开。凿岩机的排气口也大致与铰链连接同心，但与其轴向间隔开。

45. 发明授权

US3918530A Eccentric element for silencing tool and method 失效
标题翻译：用于消音工具和方法的偏心元件
公开(公告)号：US3918530A
公开(公告)日：1975-11-11
申请号：US41623273
申请日：1973-11-15
申请人： ATLAS COPCO AB
发明人： NYHOLM BENGT VIKTOR
IPC分类号： B25D17/11 , B25D17/12
CPC分类号： B25D17/11 , Y10S173/02 , Y10T279/17094
摘要： A method and a means for silencing the noise generated by a vibrating impact transmitting tool such as a pneumatic hammer operated chisel, pick, spade or ballast tamper in which an elastomeric damping element in saddle-like manner is clamped fast eccentrically to a shaft portion of the tool by an encasing metallic sleeve. The sleeve is slipped over and past a retaining collar on the tool and bent along lines longitudinal thereto in order to provide a firm radial grip around the damping element and shaft portion.
摘要翻译：用于消除由振动冲击传递工具产生的噪声的方法和装置，所述振动冲击传递工具例如气锤操作的凿子，拾取，铲形或压载捣固器，其中鞍状的弹性体阻尼元件被快速偏心地夹紧到该工具由一个包裹金属套管。套筒滑过并穿过工具上的保持环，并沿纵向方向弯曲，以便围绕阻尼元件和轴部分提供牢固的径向夹持。

46. 发明授权

US3891049A Pneumatic tool construction 失效
标题翻译：气动工具结构
公开(公告)号：US3891049A
公开(公告)日：1975-06-24
申请号：US39128973
申请日：1973-08-24
申请人： BOSCH GMBH ROBERT
发明人： STROEZEL REINHOLD , HETTICH ALFRED , CIVARELLA ALFREDO
IPC分类号： F01N1/00 , B24B23/00 , B25D17/12 , B25F5/00 , F01N1/08 , F01N1/10 , F01N13/00 , F01N7/00
CPC分类号： B25F5/00 , F01N13/002
摘要： A housing of a pneumatic tool has a curved portion provided with outlet openings for spent pneumatic fluid. An auxiliary muffler is provided for the tool, including a curved body which is dimensioned to embrace the curved portion of the housing and provided with one or more channels overlying the outlet openings and having an end portion provided with discharge apertures. The channel or channels follow substantially the curvature of the curved portion and have a length corresponding to at least half the length of the curvature of the curved portion.
摘要翻译：气动工具的壳体具有弯曲部分，该弯曲部分设置有用于废气动流体的出口。为工具提供辅助消音器，包括弯曲体，该弯曲体的尺寸设计成包围壳体的弯曲部分并且设置有一个或多个通道，该通道覆盖出口开口并具有设置有排放孔的端部。通道或通道基本上遵循弯曲部分的曲率，并且具有对应于弯曲部分的曲率长度的至少一半的长度。

47. 发明授权

US3848931A Tool bit for vibration attenuation 失效
标题翻译：用于振动衰减的工具位
公开(公告)号：US3848931A
公开(公告)日：1974-11-19
申请号：US29592872
申请日：1972-10-10
申请人： INT TOOL SALES
发明人： SWISHER J
IPC分类号： B23Q11/00 , B23B51/00 , B25D17/02 , B25D17/04 , E21B10/36 , E21C37/24 , F16F15/08 , B25D17/12
CPC分类号： E21B10/36 , B25D17/02 , B25D17/046 , Y10S173/02 , Y10T279/17102
摘要： The vibrational characteristics of a percussion tool bit are varied by affixing a restraining collar thereto in accordance with the level of dampening desired. This collar is permanently affixed to the tool bit by incorporating a rigid interlock therebetween and a special compressible material is utilized therein to withstand high operating temperatures. Where the tool bit includes a detachable work tip, the tip is configured to serve as a protective shield for the collar upon penetration into materials. As part of this configuration, a conical surface is provided to facilitate withdrawal of the tool bit from penetrated materials and to avoid inadvertent removal of the tip during penetration.
摘要翻译：冲击工具钻头的振动特性根据所要求的阻尼水平，通过将限制套环固定到其上来改变。该套环通过在其间并入刚性互锁而永久地固定到工具头上，并且其中使用特殊的可压缩材料以承受高的工作温度。在工具头包括可拆卸的工作尖端的情况下，尖端被配置为在穿入材料时用作套环的保护罩。作为该构造的一部分，提供锥形表面以便于将工具头从被穿透的材料中取出并避免在穿透期间无意中去除尖端。

48. 发明授权

US3757875A Air hammer and combined support and muffler therefor 失效
标题翻译： AIR HAMMER及其组合支持和MUFFLERERERER
公开(公告)号：US3757875A
公开(公告)日：1973-09-11
申请号：US3757875D
申请日：1971-11-24
申请人： KENT AIR TOOL CO
发明人： GUNNING S
IPC分类号： B25D17/12 , E04G23/08 , F01N7/00
CPC分类号： B25D17/12 , E02F3/966 , Y10S173/02
摘要： A support by which a reciprocating air hammer of the type having an elongated body or barrel is pivotally supported on the bucket supporting boom arm of a conventional power shovel, is modified to enclose the hammer body and to muffle the air percussively discharged from the hammer body.
摘要翻译：具有细长主体或筒体的类型的往复式气锤被枢转地支撑在常规铲土机的铲斗支撑臂上的支撑被改型以包围锤体并且将从锤体排出的空气吹扫。

49. 发明授权

US3599756A Rock drill feed mast with integral muffler and oil separator 失效
标题翻译：摇滚钻机与整体式油门和油分离器进料
公开(公告)号：US3599756A
公开(公告)日：1971-08-17
申请号：US3599756D
申请日：1970-04-30
申请人： WORTHINGTON CORP
发明人： PICKLE LINWOOD A
IPC分类号： B25D17/12 , E21B7/02 , E21B15/00 , E21B19/08 , E21B19/084 , F01N1/08 , F01N7/08
CPC分类号： E21B7/025 , B25D17/12 , E21B19/084 , Y10S173/02
摘要： A compressed air drill mounted and movable on a guide mast is presented wherein the guide mast is a boxlike structure having a plurality of openings to receive the exhaust from the drill. The guide mast forms part of a muffler and separator system wherein the drill exhaust is muffled and the oil is separated from the air to lubricate drill guides and a drive chain within the guide mast. A muffler element having two spaced plates is located in an expansion chamber between the exhaust ports on the drill and the guide mast. One of these plates is solid and acts as a baffle; the other of these plates is perforated and is placed adjacent to the openings in the guide mast whereby exhaust gases are deflected by the muffler structure and flow around the muffler structure and through the perforated plate.

50. 发明授权

US3444692A Exhaust pipe assembly for pneumatic tools 失效
标题翻译：排气管组件用于气动工具
公开(公告)号：US3444692A
公开(公告)日：1969-05-20
申请号：US3444692D
申请日：1967-08-31
申请人： GARDNER DENVER CO
发明人： HUFFMAN MERVIN C
IPC分类号： B25D17/12 , F01B31/02 , F01B31/16
CPC分类号： F01B31/02 , B25D17/12

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