Segment for a rehabilitating pipe
US7506895B2 · kind B2 · utility
4Cited by
24References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2005 |
| Grant date | Mar 24, 2009 |
| Priority date | — |
| Expiry date | Jul 2, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L55/163
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.