F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 55/12 (2006.01) F16K 7/10 (2006.01) F16L 55/124 (2006.01) G01P 13/04 (2006.01)
Patent
CA 2080060
ABSTRACT OF THE DISCLOSURE A method of and a device for temporarily inserting an apparatus into a buried pipeline, the device comprising a quill to be inserted into a borehole and comprising a lock at its top part, expansible chambers associated with the inner wall of the quill and a head mounted at the bottom part of the quill to provide a sealed connection between the latter and a pipeline buried in the ground and in which an apparatus should be temporarily inserted via the quill.
Lasserre Pierre
Pfeiffer Dominique
Wartel Christian
Gaz de France
Lasserre Pierre
Mcfadden Fincham
Pfeiffer Dominique
Wartel Christian
LandOfFree
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