Rehabilitation pipe and pipe rehabilitation method
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United States of America Patent
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Jun 30, 2015
Grant Date -
Apr 10, 2014
app pub date -
Oct 9, 2013
filing date -
Oct 10, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A pipe unit for a rehabilitation pipe is used to rehabilitate an existing pipe. The pipe unit has segments mutually linked in a circumferential direction of the pipe unit, and at least one diameter expander for enlarging an inner diameter of the pipe unit. The diameter expander has a thickness in the circumferential direction of the pipe unit and is inserted between an adjacent pair of the mutually linked segments so as to be completely separated from each other by the diameter expander in the circumferential direction and by an amount corresponding to the thickness of the diameter expander.
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