Aeration apparatus for liquid
US5234632A · kind A · utility
3Cited by
10References
14Claims
0Family size
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Inventor
Key dates
| Filing date | Oct 30, 1991 |
| Grant date | Aug 10, 1993 |
| Priority date | — |
| Expiry date | Oct 30, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus for injecting compressed air into a liquid comprises a tubular basic body such as a pipe that is surrounded by a perforated membrane through which air is distributed into wastewater and is connected to the nipple of a compressed air supply through a hollow and cylindrical member that transfers compressed air to the space between the membrane and the tubular basic body and also has a passageway for wastewater so that wastewater can flow through the tubular basic body, thereby avoiding stagnant areas of untreated wastewater.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.