Patent ID: 8113225
Filing Date: 2012-02-14
Classification: E03D,F16K,G01F,Y10T

Abstract:
1. A flush valve actuator for a urinal, said flush valve actuator comprising: a valve body having an inlet and an outlet and a passage defined therein, said passage being in communication with said inlet and said outlet; a diaphragm disposed within said passage of said valve body between said inlet and said outlet, said diaphragm being movable between a first position and a second position so as to control a flow of fluid between said inlet and said outlet; a variable flow control positioned within said passage between said inlet and said diaphragm, said variable flow control being adapted to adjust a flow rate of fluid through said passage to a defined flow rate; a solenoid operatively associated with said valve body and said diaphragm, said solenoid being adapted to be activated for a defined activation period so as to cause said diaphragm to move from said first position to said second position; and an electronics assembly electrically coupled to said solenoid, wherein said electronics assembly activates said solenoid for the defined activation period, wherein when in said first position, said diaphragm closes said passage so as to prevent the flow of fluid between said inlet and said outlet and, when in said second position, said diaphragm allows fluid to flow from said passage to said outlet, wherein the defined flow rate and the defined activation period are defined in a manner that allows approximately one-eighth of a gallon of water to enter said outlet per activation of said solenoid, and wherein said electronics assembly activates said solenoid upon detection of a user's presence by a sensor.