F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 55/18 (2006.01) F16L 55/26 (2006.01)
Patent
CA 2082509
Internal pipe inspection apparatus (14) and an inline pipe head (16) are disclosed. The inspection (14) is insertable into either a four inch or six inch pipeline through a standard service size opening (12). The apparatus includes a compact pipe head (16) having a viewing assembly (50) for imaging the interior of the pipe. The head (16) is sized to pass through the standard later- al service opening (12), the opening being substantially less in size than the diameter of the pipe. A flexible steel snake (18) is con- nected to the head (16) for manually moving and rotating the head (16) within the pipe (10) once the head (16) is positioned there- in. The apparatus is intrinsically safe for inspection of a live natural gas main. Various centralizing member embodiments are disclosed for positioning the pipe head viewing assembly substantially concentric with the axis of the pipe.
Allen John E.
Avarbock Gerald A.
Fisk Allan T.
Kliszczewicz Theodore J.
Kudarauskas Andrew J.
Cassan Maclean
Niagara Mohawk Power Corporation
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