Urinals
US4244061A · kind A · utility
21Cited by
1References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1978 |
| Grant date | Jan 13, 1981 |
| Priority date | — |
| Expiry date | Sep 14, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/4456
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A urinal arrangement for flushless hygienic operation has a sealing trap with a bend portion having a bore of not more than 25 mm. The bore size produces "plug flow" through the trap so that liquid retained in the trap as a seal is displaced in use by new liquid without significant mixing of new and displaced liquid. The small bore reduces the exposed surface area of the retained liquid forming the seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.