Patent ID: 8234724
Filing Date: 2012-08-07
Classification: E03D,Y10S

Abstract:
1. A system for controlling the flush volume of a flushometer, comprising: a dual flush valve associated with a waste receptacle fixture, the dual flush valve having a solid waste flush volume corresponding to a full flush volume and a liquid waste flush volume corresponding to a reduced flush volume; a presence detection sensor associated with the flush valve, the presence detection sensor configured to monitor for the presence of a user and provide a signal upon the detection of a user in a predefined area; an automatic flush control in communication with the presence detection sensor and the dual flush valve, the automatic flush control comprising a memory unit associated with the presence detection sensor and the flush valve, the memory unit having stored therein computer program instructions for: receiving the presence detection sensor signal; stopping the usage timer upon no longer receiving a presence detection sensor signal; generating a usage time t modifying a usage cycle count N determining if a number of cycles N if N then determining if the usage time t if N then determining if the usage time t modifying t wherein the automatic flush control provides instructions actuating the dual flush valve for the solid waste flush volume or the liquid waste volume based on usage time.