Diffuser for an aeration system

Details Diffuser for an aeration system Diffuser for an aeration system

2011-08-23

2011-08-23

Chiesa, Richard L (Department: 1776)

Gas and liquid contact apparatus

Fluid distribution

Valved

C261S122100, C261S122200

Reexamination Certificate

active

08002248

ABSTRACT:
A diffuser for an aeration system includes a base, a valve member, and a diaphragm. The diaphragm has a central portion, a peripheral portion, and a surrounding segment. The surrounding segment is interposed between the central portion and the peripheral portion, and includes a base web layer and a porous foam layer. The base web layer includes a plurality of fibrous filaments arranged to form a textured structure with a plurality of pores. The porous foam layer is disposed on the base web layer.

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