초록 ▼

A method is provided for extracting liquid from a liquid dispenser The dispenser includes a liquid container and, connected to the container, a liquid dispensing device is able to take up liquid from the container and convey it along a path as far as at least one liquid outlet so as to dispense this

A method is provided for extracting liquid from a liquid dispenser The dispenser includes a liquid container and, connected to the container, a liquid dispensing device is able to take up liquid from the container and convey it along a path as far as at least one liquid outlet so as to dispense this liquid to the outside. The method includes a step of injecting a volume of extraction gas under pressure into the container so as to apply pressure to the liquid of the container in order to cause it to flow along at least part of the device and allow a predetermined quantity of liquid to be extracted from the dispenser.

대표청구항 ▼

1. Method for extracting liquid from a liquid dispenser the liquid dispenser having: a liquid container,a liquid dispensing device which is able to take up the liquid from the container and convey said liquid along a path as far as at least one liquid outlet of the device so as to dispense the taken

1. Method for extracting liquid from a liquid dispenser the liquid dispenser having: a liquid container,a liquid dispensing device which is able to take up the liquid from the container and convey said liquid along a path as far as at least one liquid outlet of the device so as to dispense the taken-up liquid to outside the dispenser,the dispenser having at least one compensating-air inlet for letting air into the container and which, when open, by letting a volume of the air in from the outside makes possible compensation for a volume of the liquid taken up by said liquid dispensing device,said liquid dispensing device having a pumping device for pumping the liquid contained in the container, said pumping device being able to occupy a rest position and, under an action of an actuating command, one or more actuated positions, in each of said one or more actuated positions said at least one compensating-air inlet is open to the outside,said method comprising, starting from a state where the pumping device occupies the rest position, the steps of:actuating the pumping device so that the pumping device occupies one position of said one or more actuated positions, no liquid being taken up from the container and no liquid being conveyed along the path at this step,maintaining said one or more actuated positions while a step of injecting a volume of extraction gas under pressure into the container through said at least one compensating-air inlet open to the outside, so as to apply pressure to the liquid contained in the container in order to cause said liquid to flow along the liquid-conveying path and thus extract a predetermined quantity of the liquid from the dispenser. 2. Method according to claim 1, wherein the liquid container is provided with an opening in which the liquid dispensing device is mounted, said at least one compensating-air inlet being situated level with said opening of the container and being able, on the one hand, to be open to the outside in order to allow compensating air from the outside to be let into the container when the pumping device is in the one or more actuated positions and, on the other hand, to be closed off when the pumping device is in the rest position. 3. Method according to claim 2, wherein the dispensing device further comprises, mounted removably on the pumping device, a system for injecting a volume of the extraction gas and for extracting the liquid from the dispenser under the action of the injected volume of the extraction gas. 4. Method according to claim 1, wherein the dispensing device comprises, mounted removably on the pumping device, a system for injecting a volume of the extraction gas and for extracting the liquid from the dispenser under the action of the injected volume of the extraction gas. 5. Method according to claim 4, prior to the step of injecting a volume of the extraction gas, the method further comprising a step of mounting the liquid dispenser on the pumping device as a replacement for an actuating component which allows only the liquid pumped from the container to be dispensed to the outside the dispenser. 6. Method according to claim 1, wherein the step of actuating the pumping device renders a liquid metering of the pumping device inoperative. 7. Liquid dispenser comprising: a liquid container,a liquid dispensing device which is able to take up liquid from the container and convey said liquid along a path as far as at least one liquid outlet of the device so as to dispense the taken-up liquid to outside the dispenser, at least one compensating-air inlet for letting air into the container and which, when open, by letting a volume of the air in from the outside makes possible compensation for a volume of the liquid taken up by the liquid dispensing device,said liquid dispensing device having a pumping device for pumping the liquid contained in the container, said pumping device being able to occupy a rest position and, when actuated, having one or more actuated positions, such that in each of said one or more actuated positions said at least one compensating-air inlet is open to the outside, wherein the dispensing device comprises a system for injecting a volume of the gas into the container through said at least one open compensating-air inlet and for extracting the liquid under the action of the injected volume of the gas. 8. Dispenser according to claim 7, wherein the liquid dispenser is mounted removably on the pumping device. 9. Dispenser according to claim 8, wherein said dispenser further comprises: at least one injection element for injecting a volume of extraction gas through said at least one compensating-air inlet, at least one extraction element for extracting a predetermined quantity of liquid from the dispenser and which comprises said at least one liquid outlet. 10. Dispenser according to claim 7, further comprises: at least one injection element for injecting a volume of the gas through said at least one compensating-air inlet, at least one extraction element for extracting a predetermined quantity of the liquid from the dispenser and which comprises said at least one liquid outlet. 11. Dispenser according to claim 10, wherein said at least one injection element for injecting a volume of gas has one or more the gas injection ducts. 12. Dispenser according to claim 10, wherein said at least one extraction element for extracting the predetermined quantity of the liquid from the dispenser comprises a liquid conveying duct, a first inlet end of which communicates with the pumping device and an opposite second end of which is in communication with the outside, the opposite second outlet end comprising a choice of: an outlet orifice, one or more spray orifices, a pouring spout. 13. Dispenser according to claim 12, wherein said at least one injection element for injecting a volume of the gas has one or more gas injection ducts. 14. Dispenser according to claim 7, wherein said dispenser is mounted in a sealed manner on the pumping device. 15. Dispenser according to claim 7, wherein the system for injection and extraction is mounted on the pumping device in such a way as constantly actuated thereto so as to keep the pumping device in an actuated position.