专利名称：IMPROVEMENTS RELATING TO THE LINING
OF PIPELINES AND PASSAGEWAYS
发明人：WOOD ERIC,WOOD, ERIC申请号：EP92924807.0申请日：19921210公开号：EP0610437A1公开日：19940817
摘要： According to the invention, when laying a pipeline or a main undergroundpassageway (10) a lining tube which passes over the junction of a lateral pipe (12) with themain pipeline or passageway (10), this lateral junction can be readily located and thelining tube (44) cut to re-establish the connection, if an element (42), such as a material ora steel ball, detectable radiation, is applied or placed on the surface the pipeline orpassageway (10) at a predetermined distance (77) relative to said lateral junction.
申请人：INA Acquisition Corporation
地址：1770 Kirby Parkway, Suite 300 Memphis, TN 38138 US
国籍：US
代理机构：Denmark, James, et al
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