发明名称 Method for installing a duct in the ground and device for performing this method
摘要 Method for installing a duct (2) in the ground, whereby a longitudinal element (1) is already present in the ground near the route along which the duct (2) is to be installed, whereby the existing longitudinal element (1) is used as a guide for the duct (2) to be installed and the duct (2) is pushed into the ground with the aid of a fluid under pressure fed through the duct (2), whereby the duct (2) to be installed is coupled to the existing longitudinal element (1) by at least one divisible coupling piece (3) and whereby the coupling element is advanced along the existing longitudinal element (1) The invention also provides a coupling piece (3) for guiding the duct (2) along the longitudinal element (1).
申请公布号 US6641331(B2) 申请公布日期 2003.11.04
申请号 US20020204917 申请日期 2002.08.26
申请人 KONINKLIJKE KPN N.V. 发明人 VAN BIJSTERVELD CORNELIS CASPARUS
分类号 H02G1/08;G02B6/44;G02B6/50;H02G1/06;(IPC1-7):F16L55/26 主分类号 H02G1/08
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