초록 ▼

A diaphragm-type 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 movable to a closing position on the valve seat to control water flow through the flush valv

A diaphragm-type 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 movable to a closing position on the valve seat to control water flow through the flush valve. The valve member includes a diaphragm peripherally attached to the body and there is a pressure chamber above the diaphragm with water therein holding the valve member on said valve seat. An annular filter body is attached to the underside of the diaphragm at spaced locations thereon and there is a bypass orifice in the filter body positioned at one of the spaced locations. The filter body includes a plurality of peripherally spaced grooves and there is a filter ring mounted on the filter body and facing the grooves. The filter ring and grooves form a plurality of filter passages in communication with the bypass orifice and the flush valve inlet.

대표청구항 ▼

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [1.]1. A diaphragm-type of flush valve for use with toilet devices such as urinals and water closets, including a body having an inlet and an outlet, a valve seat between said inlet and

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [1.]1. A diaphragm-type of flush valve for use with toilet devices such as urinals and water closets, including a body having an inlet and an outlet, a valve seat between said inlet and outlet, and a valve member movable to a closing position on said valve seat to control water flow between said inlet and outlet, said valve member including a diaphragm peripherally attached to said body, a pressure chamber above said diaphragm with water therein holding said valve member on said valve seat,an annular filter attached to the underside of said diaphragm at spaced locations on said diaphragm, a bypass orifice in said filter positioned at one of said spaced locations and in communication with said pressure chamber, said filter including a body having a plurality of peripherally spaced grooves, and a filter ring mounted on said filter body and facing said grooves, said filter ring and grooves forming a plurality of filter passages in communication with said valve body inlet and said bypass orifice.