发明名称 Machine for laying composite pipes - consists of coiled liner and strip with elongated reinforcement ridges and elongated hole
摘要 The machine for laying a composite pipe consists of a coiled inliner (1) made of relatively soft material. Inside an elongated hole (3), a pipe (7) is wound by a winder (4) out of a strip (5) with elongated, profiled reinforcement-ridges (6). The pipe (7) has lateral connections (8) with tongue and groove formation. Between the inliner (1) and the elongated hole (3) is pressed a setting material (2b) such as concrete. USE/ADVANTAGE - Water-tight and non-corrosive inliners and casings for pipes are laid underground.
申请公布号 DE4013333(A1) 申请公布日期 1991.10.31
申请号 DE19904013333 申请日期 1990.04.26
申请人 GEBR. EICKHOFF MASCHINENFABRIK U. EISENGIESSEREI MBH, 4630 BOCHUM, DE 发明人 GROTENHOEFER, HEINRICH, DR.-ING., 4150 KREFELD, DE
分类号 F16L1/038;F16L9/16;F16L55/165 主分类号 F16L1/038
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