Drain assembly
US6058526A · kind A · utility
66Cited by
9References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1996 |
| Grant date | May 9, 2000 |
| Priority date | — |
| Expiry date | Jun 19, 2016 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03C2001/2315
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The drain assembly is constructed with a segmented ball valve of stainless steel or plastic which is rotatable between an open position and a closed position by a shaft extending from the drain body. An annular valve seat is biased against the valve body by a compression device and an annual retainer which is threaded into the valve body from above. A strainer may also be provided to catch large particles which might otherwise not be desirable for passage through the drain assembly. The valve body provides a relatively large opening for the discharge of fluids into a drain pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.