Underground pipe inspection device and method

Details Underground pipe inspection device and method Underground pipe inspection device and method

2005-12-21

2009-02-24

Williams, Hezron (Department: 2856)

Measuring and testing

Vibration

By mechanical waves

C073S865800, C073S855000, C324S220000

Reexamination Certificate

active

07493817

ABSTRACT:
A method and apparatus for inspecting the walls of an underground pipe from inside the pipe in which an inspection apparatus having a circular planar platform having a plurality of lever arms having one end pivotably attached to one side of the platform, having a pipe inspection device connected to an opposite end, and having a system for pivoting the lever arms is inserted into the underground pipe, with the inspection apparatus oriented with the planar platform disposed perpendicular to the pipe axis. The plurality of lever arms are pivoted toward the inside wall of the pipe, contacting the inside wall with each inspection device as the apparatus is conveyed along a length of the underground pipe.

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