Sewer chimney
US4243068A · kind A · utility
9Cited by
4References
9Claims
0Family size
Inventors
Key dates
| Filing date | Jun 25, 1979 |
| Grant date | Jan 6, 1981 |
| Priority date | — |
| Expiry date | Jun 25, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7025
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Chimney for joining a lower main sewer line having a vertical nipple to an upper branch sewer line, the chimney consisting of a pre-cast concrete bridge assembly straddling the main line and having a bore through which the nipple extends, the bridge being joined by intermediate sections to a Y-branch section having passages and openings for joining it to the branch line, there being a fluid-tight seal between the bore and the nipple to permit relative movement therebetween without leakage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.