Method for rehabilitating an existing pipe

Details Method for rehabilitating an existing pipe Method for rehabilitating an existing pipe

2006-08-01

2006-08-01

Lagman, Frederick L. (Department: 3673)

Hydraulic and earth engineering

Subterranean or submarine pipe or cable laying, retrieving,...

Repair, replacement, or improvement

C405S184200

Reexamination Certificate

active

07083360

ABSTRACT:
Segments are successively coupled in the circumferential direction and the vertical direction to provide a rehabilitating pipe that rehabilitates an exiting pipe such as a manhole extending in the vertical direction. The segments are coupled in the vertical direction by stacking segments on previously assembled segments. A gap between the existing pipe and the rehabilitating pipe is filled with a filler after completion of the assembly as a rehabilitating pipe. The filler is hardened to integrate the rehabilitating pipe with the existing pipe as a compound pipe. With such an arrangement, the rehabilitating pipe can be laid by a simple method because the segments can be stacked on previously assembled segments using the segments' own weight.

REFERENCES:
patent: 2166632 (1939-07-01), Hardesty et al.
patent: 4089139 (1978-05-01), Moffa et al.
patent: 5081802 (1992-01-01), Westhoff et al.
patent: 5383311 (1995-01-01), Strickland
patent: 5388929 (1995-02-01), Molyneux
patent: 5608998 (1997-03-01), Hume
patent: 787861 (1997-06-01), None
patent: 9-13410 (1997-01-01), None

Affiliated with

Also associated with

Rating

Method for rehabilitating an existing pipe does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for rehabilitating an existing pipe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for rehabilitating an existing pipe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3669720