US Patent 8944105 Capacitive sensing apparatus and method for faucets

A fluid delivery apparatus includes a spout (12) located adjacent a sink basin (16). A fluid supply conduit (14) is supported by the spout (12). Capacitive sensors (29) and (41) are provided on the spout (12) and sink basin (16), respectively. A controller (26) is coupled to the capacitive sensors (29, 41) to control the amount of fluid supplied to the fluid supply conduit (14) based on outputs from the capacitive sensors (29, 41).