Flexible diffuser assembly for aeration applications
US5330688A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 27, 1993 |
| Grant date | Jul 19, 1994 |
| Priority date | — |
| Expiry date | May 27, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F23/231262
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention relates to the combination of an aeration system and flexible diffuser assembly, especially for use in a sewage treatment tank, where the system includes a plurality of fluid medium transmission conduits, with each conduit provided with at least one flange projecting therefrom, where the flange includes a base plate mounted thereto and a central opening communicating with said conduit. The diffuser assembly comprises a first member having a flat continuous annular face portion and a central recess with a bore aligned with the central opening. A locking bolt member is provided to threadably engage the bore and central opening, where the bolt member includes a central, through orifice communicating with the conduit through which the fluid medium may pass. Finally a porous elastomeric cover is provided to lie contiguous with the annular face portion and engage the periphery of the first member, where the cover includes a plurality of perforations, preferably in the form of through slits arranged in plural concentric circles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.