发明授权
- 专利标题： Transmission line installation
- 专利标题（中）： 输电线路安装
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申请号： US765886申请日： 1997-01-29
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公开(公告)号： US5885027A公开(公告)日： 1999-03-23
- 发明人: Stephen A. Marsden , Paul F. Wettengel , Austin B. Gumbs
- 申请人： Stephen A. Marsden , Paul F. Wettengel , Austin B. Gumbs
- 申请人地址： GB2 London
- 专利权人： British Telecommunications public limited company
- 当前专利权人： British Telecommunications public limited company
- 当前专利权人地址： GB2 London
- 优先权： EPX94305033 19940708
- 主分类号： G02B6/46
- IPC分类号： G02B6/46 ; E21B7/18 ; E21B7/28 ; G02B6/44 ; H02G1/06 ; F16L55/18 ; F16L55/26
摘要：
A method of installing a transmission line (such as an optical fibre telecommunications line) in the ground includes the steps of forming a tunnel in the ground using a mole constituted by a water-jetting head and piping for supplying pressurized water to the head, and positioning the transmission line in the tunnel. The head is guided along a pre-installed buried elongate member such as a twisted copper pair telecommunications line.
公开/授权文献
- US5182585A Eyeglasses with controllable refracting power 公开/授权日：1993-01-26
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