F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 55/132 (2006.01) E03B 7/09 (2006.01) E03F 7/02 (2006.01) F16L 55/134 (2006.01)
Patent
CA 2149109
A method for blocking the bore of a pipe comprising moving an inflatable bag along the bore of the pipe from an access point in the pipe to a point where the bore is to be blocked, inflating the bag until it engages the internal wall of the pipe or main, and causing the bag to maintain its inflated condition.
Bennett Robert Neal
Elgar Anthony Dennis
Sales Brian Thomas
British Gas Plc
Gowling Lafleur Henderson Llp
Lattice Intellectual Property Ltd.
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