Outside filter for flush valve

Details Outside filter for flush valve Outside filter for flush valve

1997-11-04

1999-10-19

Chamber, A. Michael

Fluid handling

With means for separating solid material from the fluid

251 40, F16K 31145

Patent

active

059671823

ABSTRACT:
A diaphragm type of flush valve for use with toilet devices such as urinals and water closets includes a body having an inlet and an outlet. There is a valve seat between the inlet and outlet and a valve member is movable to a closing position on the valve seat to stop flow between the inlet and outlet. The valve member includes a diaphragm assembly peripherally attached to the body. There is a pressure chamber above the diaphragm assembly for holding the valve member on the valve seat. A filter and bypass orifice in the diaphragm assembly connects the inlet and the pressure chamber. The filter includes a circumferential filter ring attached to the underside of the diaphragm and positioned adjacent its periphery. The ring has a plurality of circumferentially spaced filter grooves in communication with the inlet. There is a peripheral channel connecting the grooves and there is an orifice in communication with the peripheral channel and the plurality of grooves to provide a water flow conduit between the inlet and the pressure chamber.

REFERENCES:
patent: 1257231 (1918-02-01), Hill
patent: 5150877 (1992-09-01), Whiteside et al.
patent: 5332192 (1994-07-01), Whitesisde

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