US Patent 10315910 Nozzle for a liquid dispensing spout

A nozzle for a dispensing spout provides physically separate conduits, through which a liquid and air pass between a reservoir containing a liquid to be dispensed and a container into which the liquid is to be dispensed. The fluid and air conduits, as well as their respective opposing ends, are sized and shaped to provide an unobstructed air conduit which can carry ambient air into the reservoir at a rate that is at least equal to the rate at which liquid can flow out of the reservoir at a gravitational flow rate.