F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
254/148
F16L 55/16 (2006.01) E21B 19/086 (2006.01) F16L 1/028 (2006.01)
Patent
CA 1303602
Abstract An apparatus for pushing forward pipes along a pipe line section is arranged to be brought down into a manhole connected to the pipe line section, and includes a pushing piston (20,26) exerting a pushing force on a pipe (8,12) with support of a holding-up device (2,18). The pushing piston (20) at its leading end carries rods (27) extending essentially to the rear end of the pushing piston and there carry a pressure abutment (28) for bringing the pipe with it during the forward pushing movement of the piston, said rods (27) aiding in supporting the pipe (8). (Figure 1)
610157
Liljehammar Bertil
Smart & Biggar
LandOfFree
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