US 7,124,997 B2 · Flush valve assembly with flex tube

Abstract

A toilet room flush valve includes a body with an inlet and an outlet and a valve seat therebetween. A valve assembly in the body is positioned to close upon the seat to control flow from the inlet to the outlet. A cover is mounted upon the body and defines a pressure chamber with the valve assembly. A bypass connects the inlet and the pressure chamber whereby pressure in the chamber maintains the valve assembly upon the seat. The pressure chamber may be vented to permit movement of the valve assembly toward the cover. The stroke of the valve assembly is limited by a volume regulator which is fixed to the cover and an adjustable microcontroller which is movable with the valve assembly and positioned to contact the volume regulator upon venting of the pressure chamber and consequent movement of the valve assembly.

Claims12

Dependent claims

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, means for venting said pressure chamber permitting movement of said valve assembly toward said cover, means for limiting the stroke of said valve assembly as it moves toward said cover including a stop fixed relative to said cover, and an adjustable microcontroller movable with said valve assembly and positioned to contact said stop upon venting of said pressure chamber and consequent movement of said valve assembly.

Dependencies are inferred from the claim text.

Flush valve assembly with flex tube

Life of this patent

Flush valve assembly with flex tube

Life of this patent

Abstract

Claims12