Air admittance vent diaphragm assembly

Details Air admittance vent diaphragm assembly Air admittance vent diaphragm assembly

2005-01-18

2008-11-04

Rivell, John (Department: 3753)

Fluid handling

Line condition change responsive valves

Direct response valves

C137S533310, C251S357000

Reexamination Certificate

active

07445022

ABSTRACT:
An air admittance vent diaphragm assembly is disclosed. The assembly comprises a base, an annular retainer ring, and an annular malleable washer. The base has an annular portion and a stem extending orthogonally from the center of the annular portion. The annular retainer ring includes a circumferential skirt engaged with an outer perimeter of the annular portion of the base, with the stem extending beyond the annular retainer ring. The annular malleable washer is disposed between the annular retainer ring and the annular portion of the base.

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Packaging for Studio® Mini-Vent® Air Admittance Valve, Studio®, Inc. Inventive Technology, 2030 Main Street, Dunedin, Florida 34698, circa 1996, two sides packaging.
International Search Report.

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