Patent ID: 6877532
Filing Date: 2005-04-12
Classification: B67D

Abstract:
1. A liquid delivery system for controlling the flow of a pressurized liquid to a contained space, comprising: a) a nozzle having a housing having internal ducting for receiving the liquid; b) a liquid valve in the housing for controlling the flow of pressurized liquid through the ducting and operable between an open setting allowing flow of liquid from the ducting and a closed setting opposing liquid flow; c) an actuator for controlling the liquid valve setting; d) a spout attached to the housing and receiving liquid from the liquid valve for delivering the liquid to the contained space, said spout having an internal passage defined by an internal surface and an outlet from which liquid flows; d) an air vent located within the spout; e) an air valve for controlling flow of compressed air from a source to the air vent, said valve opening responsive to an actuation force; and f) a purge linkage between the liquid valve and the air valve for providing actuation force to the air valve responsive to a change in the liquid valve from the open setting to the closed setting.