F - Mech Eng,Light,Heat,Weapons – 17 – D
Patent
F - Mech Eng,Light,Heat,Weapons
17
D
F17D 3/00 (2006.01) F16L 55/26 (2006.01) F16L 55/40 (2006.01) G01B 5/00 (2006.01) G01V 9/00 (2006.01)
Patent
CA 2506830
A pipeline pig for detecting an obstruction in a pipeline and a method of use of the same. A first step involves providing a pipeline pig which carries an impression substrate and a contact sensor. A second step involves passing the pipeline pig along a pipeline. The contact sensor emits a signal should an internal obstruction be encountered. The obstruction leaves an impression upon the impression substrate that is indicative of the size and circumferential positioning of the obstruction.
Savard Donald D.
Thompson Douglas B.
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