公开(公告)号：US4447777A

公开(公告)日：1984-05-08

申请号：US216499

申请日：1980-12-15

申请人： Michael R. G. Sharp ,  John C. Braithwaite

发明人： Michael R. G. Sharp ,  John C. Braithwaite

IPC分类号： G01M3/00 ,  G01N27/82 ,  G01N27/72

CPC分类号： G01N27/82 ,  G01M3/005

摘要： An improved magnet assembly for a magnetic pipeline inspection vehicle in which the assembly is rigidly secured on the body of the vehicle which is ferromagnetic and provides an annular magnetic return path between magnetic pole members formed of permanent magnets and flexible bristles or foils.

摘要翻译： 一种用于磁性管道检查车辆的改进的磁体组件，其中组件刚性地固定在车辆的车身上，该车身是铁磁性的并且在由永磁体和柔性刷毛或箔片形成的磁极部件之间提供环形磁性返回路径。

公开(公告)号：US4173886A

公开(公告)日：1979-11-13

申请号：US919564

申请日：1978-06-27

申请人： Thomas Archbold ,  Michael R. G. Sharp

发明人： Thomas Archbold ,  Michael R. G. Sharp

IPC分类号： G01N33/00 ,  G01N31/00

CPC分类号： G01N33/0011

摘要： This invention relates to portable gas detectors having means for aspirating a sample of the atmosphere to be tested into the vicinity of two sensor devices, and including a water-trap comprising valve means arranged, in response to a drop in pressure in the flow line when water is accidentally sucked in with an aspirated sample, to temporarily close the sample flow path or to open a by-pass for detecting the presence of both natural gas and manufactured gas in the atmosphere.

摘要翻译： 本发明涉及便携式气体检测器，其具有用于将要测试的大气样品吸入两个传感器装置附近的装置，并且包括一个包含阀装置的捕集阱装置，所述捕集阱装置响应于流动管线中的压力下降而被布置， 用吸气样本偶然吸入水，暂时关闭样品流路或打开旁路，以检测天然气和制造气体在大气中的存在。