Segment for a rehabilitating pipe
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United States of America Patent
Stats
-
Mar 24, 2009
Grant Date -
Oct 20, 2005
app pub date -
Feb 16, 2005
filing date -
Apr 19, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A segment is coupled to another segment in circumferential and longitudinal directions thereof to assemble a rehabilitating pipe for rehabilitating the existing pipe. Each of the coupled segments has at least one coupling surface provided with a recessed part that confronts the recessed part at the coupling surface of the segment to which it is coupled to form therebetween a gap that is configured to receive and hold waste material existing at a bottom surface of the existing pipe when the rehabilitating pipe is assembled inside of the existing pipe.
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Cited Art Landscape
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