US Patent 9657471 Touchless flushing systems and methods

A touchless actuation system for a toilet includes a touchless sensor, a motor assembly, and a processing circuit. The processing circuit is configured to receive a signal from the touchless sensor and to detect an object within a detection region based on the signal. The touchless sensor lacks an optical path to the detection region. In some embodiments, the touchless sensor is a projected capacitive sensor. The processing circuit is configured to activate the motor assembly upon detecting the object and the motor assembly is configured to actuate flushing of the toilet when activated by the processing circuit.