Patent ID: 6547212
Filing Date: 2003-04-15
Classification: E03D

Abstract:
A flush valve, comprising:a body having an inlet and outlet; a passage connecting said inlet and outlet; a valve seat at one end of the passage; a valve assembly in said body including a diaphragm, said valve assembly positioned to control the flow of water through said passage and to close upon said seat; a guide member extending from the underside of said valve assembly and configured to co-act with said passage, said guide member defining a shoulder; a refill ring co-acting with said guide member and positioned for contact with said passage; and an annular member configured to support and co-act with said refill ring, wherein said refill ring comprises a resilient solid ring providing yielding frictional resistance to movement of said valve assembly relative to said passage to thereby dampen vibration of said valve assembly during a closing phase of the flush valve operating cycle and control the flow of water through the flush valve, and wherein the annular member is positioned adjacent to and held in place by the shoulder, and the refill ring is held in position between the annular member and said valve assembly.