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U.S. Department of Energy
Office of Scientific and Technical Information

Underground pipe inspection device and method

Patent ·
OSTI ID:988292
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.
Research Organization:
Institute of Gas Technology
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-04NT42266
Assignee:
Operations Technology Development, NFP (Des Plaines, IL)
Patent Number(s):
7,493,817
Application Number:
11/314,621
OSTI ID:
988292
Country of Publication:
United States
Language:
English

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