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1. 发明授权

US4768407A Marking device 失效
标题翻译：标记装置
公开(公告)号：US4768407A
公开(公告)日：1988-09-06
申请号：US856584
申请日：1986-04-25
申请人： Sven A. Bratt , Gunnar C. Hansson
发明人： Sven A. Bratt , Gunnar C. Hansson
IPC分类号： B25B23/15 , B25B23/14 , F16L55/14
CPC分类号： B25B23/15
摘要： A marking device for automatic marking of threaded joints tightened by a pneumatic power wrench, wherein a marking liquid container (48), a metering pump (37), a pressure air supply valve (31) and a marking liquid outlet passage (55) form a unit detachably clamped onto the power wrench housing (10). Pressure air communication passages (24, 25) feed the marking device directly with pressure air from the air supply passage (13) of the power wrench. The marking liquid container (48) comprises a replaceable collapsible tube which is pressurized all around in a pressure air supplied chamber (28). The single stroke metering pump (37) delivers for each stroke a well defined quantity of marking liquid to the outlet passage (55) which is formed by a fine hose made of plastic material with non-adhesive properties relative to the marking liquid. A pressure air operated feed valve (62) is arranged to prevent back flow and other uncontrolled flow of marking liquid through the outlet hose (55) by compressing the latter.
摘要翻译：用于通过气动动力扳手自动标记螺纹接头的标记装置，其中标记液体容器（48），计量泵（37），压力空气供应阀（31）和标记液体出口通道（55）形成可拆卸地夹紧在动力扳手壳体（10）上的单元。压力空气连通通道（24,25）直接向压力空气供给来自动力扳手的供气通道（13）的压力空气。标记液体容器（48）包括在压力空气供应室（28）中全部加压的可更换的可折叠管。单冲程计量泵（37）为每个行程提供定义数量的标记液体到出口通道（55），出口通道（55）由相对于标记液体具有非粘合性质的由塑料材料制成的细软管形成。压力空气供给阀（62）设置成通过压缩出口软管（55）来防止标记液体的反向流动和其他不受控制的流动。

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