Gas and liquid contact apparatus – Contact devices – Liquid tank
Patent
1993-05-27
1994-07-19
Miles, Tim
Gas and liquid contact apparatus
Contact devices
Liquid tank
2611221, B01F 304
Patent
active
053306880
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.
REFERENCES:
patent: 2639131 (1953-05-01), Coombs
patent: 3997634 (1976-12-01), Downs
patent: 4007240 (1977-02-01), Gosden
patent: 4046845 (1977-09-01), Beeder
patent: 4842779 (1989-06-01), Jager
patent: 4849139 (1989-07-01), Jager
patent: 5075048 (1991-12-01), Veeder
patent: 5204028 (1993-04-01), Ruston
Sanitaire Water Pollution Control Group Documents, 198,9 Milwaukee, Wis., 3 sheets including Dwg. 89-71.
Enviroquip International, Inc.
Miles Tim
Noll William B.
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