A hands-free faucet comprises a spout, a valve, a position sensitive device, and a logical control. The position sensitive device is positioned on the user's side of the spout, and has a trigger zone and an extended zone, each defined in part by a distance range from the position sensitive device. The...http://www.google.fr/patents/US7537195?utm_source=gb-gplus-shareBrevet US7537195 - Control arrangement for an automatic residential faucet
Control arrangement for an automatic residential faucet
