Patent ID: 8556228

Claim:
An automatic toilet room flush valve, comprising: a valve body including an inlet and an outlet and a valve seat inside said body; a valve member cooperatively arranged with said valve seat, said valve member being constructed and arranged to control water flow between said inlet and said outlet, movement of said valve member between open and closed positions being controlled by water pressure inside a pilot chamber; an external cover defining a cavity and including an optical window including a divider element for dividing an optical window into two parts; an actuator for controlling operation of said valve member; a plastic housing located inside said external cover constructed to enclose an electronic control module, a battery and an optical sensor in a sealed arrangement; a reed sensor being located inside said electronic control module and being sealed within said plastic housing; and a button including a magnet and being constructed to move between upper and lower positions and designed for manually triggering a flush cycle when pushed to said lower position by activation of said reed sensor.