Carriage for inspecting a piping
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United States of America Patent
Stats
-
Feb 26, 1991
Grant Date -
N/A
app pub date -
Aug 3, 1989
filing date -
Nov 28, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A carriage for inspecting a pipe, which has inspection instruments on board and which travels on the outer surface of the pipe, comprises a support member for carrying the inspection instruments, a pair of first wheeled travel bodies each of which include at least two magnetic wheels having substantially the same rotation plane, which rotation planes are substantially in parallel with the axial direction of the pipe. Further provided is a pair of second wheeled travel bodies each of which includes at least two magnetic wheels having substantially the same rotation plane, which rotation planes are substantially at right angles to the axial direction of the pipe. At least one of said pairs of wheeled travel bodies has an elevating means for adjusting a distance between the respective wheels thereof and a floor surface of the carriage.
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