Diffuser assembly
US3997634A · kind A · utility
Inventor
Key dates
| Filing date | Jan 27, 1975 |
| Grant date | Dec 14, 1976 |
| Priority date | — |
| Expiry date | Jan 27, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention relates to a diffuser adapted to aerate a fluid medium, such as sewage in which it may be immersed. The diffuser consists essentially of two elements, namely, a T shaped member, the leg of which is provided with a central bore and adapted to be connected to a source of a fluid medium, such as air, under pressure, while the top is preferably flat and disc shaped. Overlying said top, is a cap or cover which is flexible and adapted to lie contiguous with the surface of said top. Said cap is provided with an annular rim which engages said top along and under the peripheral edge thereof. Finally, means cooperating between said T shaped member and said flexible cover are provided to permit the intermittent release of the fluid medium, such as gas, from said diffuser; however, the flexible nature of said cap in combination with said means is such that the back pressure of fluid medium to be aerated will prevent the flow of such fluid medium through the said diffuser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.