G - Physics – 01 – N
Patent
G - Physics
01
N
349/42, 324/50
G01N 29/04 (2006.01) G01N 29/265 (2006.01)
Patent
CA 1134937
ABSTRACT A pipe inspection apparatus including a vehicle for movement along the bore of the pipe, two rubber cup shaped members at each end of the vehicle for aligning the vehicle lengthwise in the pipe, a floating assembly of inspection devices such as ultrasonic transducers disposed circumferentially around the vehicle, and at least four link members pivotally attached to the assembly and to the vehicle to constrain the assembly to move in a direction normal to the length of the vehicle. The assembly may be resiliently suspended from the vehicle, and may also be provided with a centralising device, such as a rubber cup-shaped member or rollers or skids, to centralise the assembly in the bore of the pipe.
346569
British Gas Corporation
Gowling Lafleur Henderson Llp
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