Patent ID: 6382586
Filing Date: 2002-05-07
Classification: E03D,F16K

Abstract:
A toilet room flush valve Including a body having an inlet and an outlet, a valve seat between said inlet and outlet, a valve assembly in said body positioned to close upon said seat to control flow from said inlet to said outlet, a cover mounted upon said body and defining a pressure chamber with said valve assembly, bypass means connecting said inlet and pressure chamber whereby the pressure in said chamber maintains said valve assembly upon said seat, a flexible member fixed relative to said cover at one end thereof, the other end of said flexible member being attached to said valve assembly, a passage in said flexible member opening to said outlet at one end thereof, a vent passage connecting said pressure chamber with said flexible member passage, a pilot mechanism controlling flow through said vent passage, movement of said valve assembly toward said cover, in response to venting of said pressure chamber causing said flexible member to bend while remaining stationary relative to said cover.