Patent ID: 6684706
Filing Date: 2004-02-03
Classification: B08B,G01B,G01N

Abstract:
A method of inspecting a pipe comprising the steps of:a) visually inspecting the inside of the pipe with a camera; b) determining the wall thickness of the pipe with a corrosion mapping tool from the inside of the pipe, the corrosion mapping tool comprising a plurality of transducers mounted on a hollow, truncated cylinder and coupled to the inside surface of the pipe, the corrosion mapping tool further having a pair of spaced apart, compliant seal plates adapted to flex in a direction away from the direction of movement of the corrosion mapping tool, the corrosion mapping tool further having a coupling to receive a water hose connection in order to flood an annular chamber around the transducers defined by the hollow, truncated cylinder, the compliant seals, and the inside of the pipe; and c) inspecting the pipe for flaws with a time of flight diffraction tool from inside the pipe.