Patent ID: 6691893
Filing Date: 2004-02-17
Classification: A47K

Abstract:
In a liquid dispenser for dispensing a first fluid, the dispenser including an outlet for the first fluid, an inlet for a second fluid, and a pump for pressurizing the second fluid, a replaceable reservoir for the first fluid comprising:a first closed container having an inlet in fluid communication with the pump for selectively admitting the second fluid into the first container; a second collapsible closed container disposed within the first container for containing the first fluid and having an outlet in fluid communication with the outlet of the dispenser; and the inlet of the first container and the outlet of the second container each comprising a connector including a seal that is normally closed, each connector being adapted to receive a mating connector from one of the pump and dispenser outlet, at least one of the connectors and its mating connector including a keyed fitting so that each connector will connect only with its intended mate so that, when the reservoir is installed in the dispenser and the connectors are connected to their mating connector, the seals are opened to permit the selective introduction of the second fluid into the first container and the expulsion of the first fluid out of the second container.