Pipe rehabilitation method
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United States of America Patent
Stats
-
Oct 24, 2017
Grant Date -
N/A
app pub date -
Apr 20, 2017
filing date -
Jun 22, 2016
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Segments are linked in the circumferential length to assemble a pipe unit, which is linked to another pipe unit using a link bolt to install a rehabilitating pipe inside an existing pipe. An elastically deformable clip having a cylindrical cavity with a notch is attached to the link bolt between the inner plates of the segment. The clip grips the link bolt at the cavity thereof that is enlarged due to elastic deformation. When the link bolt is moved in the direction opposite the insertion direction, the clip that grips the link bolt hits the inner plate of the segment to limit the movement of the link bolt in the opposite direction and prevent the link bolt from falling out of the segment.
First Claim
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Cited Art Landscape
Patent Citation Ranking
- 3 Citation Count
- F16L Class
- 26.55 % this patent is cited more than
- 8 Age
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