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公开(公告)号:US3396542A
公开(公告)日:1968-08-13
申请号:US49314465
申请日:1965-10-05
申请人: TECH INC CONST
IPC分类号: E02B3/12
CPC分类号: E02B3/127
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公开(公告)号:US3396545A
公开(公告)日:1968-08-13
申请号:US44634665
申请日:1965-04-07
申请人: TECH INC CONST
IPC分类号: B28B7/06 , B28B7/34 , B28B13/02 , E02B3/06 , E02D15/06 , E02D17/04 , E02D17/08 , E02D29/09 , E04G11/04 , E21D11/10 , E21D15/48
CPC分类号: E04G11/04 , B28B7/06 , B28B7/344 , B28B13/021 , E02B3/06 , E02D15/06 , E02D17/04 , E02D17/08 , E02D29/06 , E04G11/045 , E21D11/10 , E21D15/483
摘要: 1,147,434. Pipes &c. CONSTRUCTION TECHNIQUES Inc. 1 April, 1966 [7 April, 1965], No. 14703/66. Heading F2P. [Also in Division E1] A cylindrical concrete pipe 190 is reinforced by surrounding the pipe with ring shaped porous bags 192 and supplying cement grout to the interior of the bags to expand them, water leaking from the bags to facilitate setting of the cement to form rings which grip the pipe. The rings have steel reinforcement 193.
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