F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 55/38 (2006.01) B08B 9/057 (2006.01) B08B 13/00 (2006.01)
Patent
CA 2620332
A pumping unit is provided that controls fluid pressure in a pipe being traversed according to the degree of resistance encountered by a pig traversing the pipe under fluid pressure. Increasing fluid pressure in constricted areas enables an intelligent pig to traverse the pipe with a more uniform speed by controlling the fluid velocity.
Lambert Anthony R.
Sivacoe Orlande
LandOfFree
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