Patent ID: 8079500
Filing Date: 2011-12-20
Classification: B67D

Abstract:
1. A fluid dispenser for dispensing fluid from a container, the fluid dispenser comprising: an intake pipe to receive fluid from the container, an outlet to dispense fluid, a pressure supply mechanism to supply pressurised fluid to the container at a first pressure, and a dispensing mechanism, the dispensing mechanism being operable to dispense fluid from the container by: reducing the pressure in the container to a second pressure, connecting the intake pipe to the outlet to dispense fluid from the container, and subsequently increasing the pressure in the container to the first pressure; wherein the dispensing mechanism comprises a valve element movable between a first position to connect to a head space of the container to the pressure supply mechanism, and a second position to connect the head space of the container to a vent to reduce the pressure in the head space of the container to the second pressure, and where the dispensing mechanism is further operable, when the intake pipe is connected to the outlet, to connect the head space of the container to the pressure mechanism supply to maintain the pressure in the head space in the container at about the second pressure while the fluid is dispensed, and wherein the valve element is movable to a third position to connect the pressure supply mechanism to the head space of the container via a restricter to maintain the pressure in the head space of the container at about the second pressure while fluid is being dispensed.