Sewer construction
US5525007A · kind A · utility
7Cited by
29References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 1995 |
| Grant date | Jun 11, 1996 |
| Priority date | — |
| Expiry date | Mar 14, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L9/08
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Prefabricated concrete pipe encasements are disclosed for stabilizing underground conduit systems from movement caused by flotation, back filling or settling. In one embodiment, a sewer chimney includes a plastic riser connected between a tee-fitting in a sewer main and a cap block at a branch service line. At least one pipe encasement and a prefabricated concrete base encircles the riser for maintaining alignment with the tee-fitting. In other embodiments the pipe encasement encircles a generally horizontal pipe line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.