Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yen-Jung Hu0
Huang-Chin Pan0
Date of Patent
August 23, 2011
0Patent Application Number
126993460
Date Filed
February 3, 2010
0Patent Primary Examiner
Patent 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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