Flush valve filter and bypass orifice
AssigneeSloan Valve Company
InventorJohn F. Whiteside
Life of this patent
Estimating the term…
Abstract
A diaphragm-type of flush valve for use with toilet devices such as urinals and water closets has a body with an inlet and an outlet and a valve seat therebetween. There is a valve member movable to a closing position on the valve seat to stop flow between the inlet and the outlet. The valve member includes a diaphragm peripherally attached to the body, a refill ring attached to the diaphragm for controlling water flow to the outlet and a retaining disc which is used to attach the refill ring to the diaphragm. There is a pressure chamber above the diaphragm for holding the valve member on the valve seat. A filter and bypass orifice connect the inlet and the pressure chamber, with the bypass orifice being formed in the retaining disc and the filter being formed in part by a portion of the diaphragm.
Claims16
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 stop flow between said inlet and outlet, said valve member including a diaphragm peripherally attached to said body, a refill ring attached to said diaphragm for controlling water flow to said outlet, and a retaining disc attaching said refill ring to said diaphragm,
- a pressure chamber above said diaphragm for holding said valve member on said valve seat, a filter and bypass orifice connecting said inlet and pressure chamber, said bypass orifice being formed in said retaining disc and said filter being formed in part by a portion of said diaphragm.
A valve member assembly for use in a toilet device flush valve for closing upon a seat thereof including a diaphragm, a refill ring attached to the diaphragm for controlling water flow between the flush valve inlet and outlet, and a retaining disc attaching said refill ring to said diaphragm, a filter and bypass orifice formed in the valve member assembly for use in connecting the flush valve inlet and a flush valve pressure chamber above the valve member assembly to cause movement thereof to a valve closing position, said bypass orifice being formed in said retaining disc and said filter being formed in part by a portion of said diaphragm.
Dependencies are inferred from the claim text.