Beverage preparation machines and beverage cartridges

1. A delivery head for a beverage preparation machine comprising:

a first part for supporting a cartridge separate from and received in the delivery head;

a second part pivotally connected to the first part and pivotal relative to the first part between an open position toward a rear of the delivery head that permits loading of the cartridge into the delivery head and a closed position toward a front of the delivery head where the first and second parts are positioned to hold the cartridge in the delivery head;

an upwardly directed inlet for supplying water to the cartridge;

a downwardly directed outlet for outflow of beverage;

a barcode reader having a barcode reader window that permits signals to be transmitted therethrough;

wherein the inlet, the outlet and the barcode reader window are arranged in a line with the outlet being intermediate the inlet and the barcode reader window;

a cartridge ejection chute spaced rearward from the inlet and outlet toward the rear of the delivery head, the cartridge ejection chute having an opening sized to permit the cartridge to be advanced through the opening;

the inlet, the outlet, the barcode reader window and the cartridge ejection chute are located in a straight line on the delivery head; and

the outlet and the inlet being intermediate the barcode reader window and the cartridge ejection chute along the straight line on the delivery head.

2. The delivery head as claimed in claim 1 wherein the first part defines a support surface for the cartridge and the inlet, the outlet, and the barcode reader window are located in or on the first part.

3. The delivery head as claimed in claim 1 wherein the inlet comprises an inlet piercer for forming an inlet opening in the cartridge received in the delivery head and the outlet comprises an outlet piercer for forming an outlet opening in the cartridge received in the delivery head.

4. The delivery head as claimed in claim 3 wherein the inlet piercer and the outlet piercer are movable between an extended position and a retracted position.

5. The delivery head as claimed in claim 3 wherein the inlet piercer and the outlet piercer are pivotal relative to the first part.

6. The delivery head as claimed in claim 1 wherein the barcode reader window is located toward the front of the delivery head.

7. The delivery head as claimed in claim 1 wherein a centroid of the inlet, a centroid of the outlet, and a centroid of the barcode reader window lie on a straight line.

8. The delivery head as claimed in claim 1 wherein the barcode reader window comprises a rectangular window, wherein a longer edge of the rectangular window is arranged perpendicularly to a line joining the inlet, the outlet and the barcode reader window.

9. The delivery head as claimed in claim 1 wherein the delivery head further comprises a clamping member which is movable relative to the first part from an open position to a clamping position and to an ejection position;

in the open position the clamping member being positioned to enable loading of the cartridge into the delivery head;

in the clamping position the clamping member being clampable against said cartridge;

in the ejection position the clamping member being positioned to enable ejection of said cartridge;

the clamping member being movable in a direction substantially parallel to the first part from the clamping position to the ejection position wherein movement of the clamping member towards the ejection position is such that an inlet of the cartridge and an outlet of the cartridge are moved away from, and do not pass over, or in the vicinity of, the barcode reader window of the delivery head.

10. A beverage preparation machine comprising the delivery head as claimed in claim 1 .

11. A beverage preparation system comprising the beverage preparation machine as claimed in claim 10 and one or more cartridges, wherein the one or more cartridges contain one or more beverage ingredients.

12. A delivery head for a beverage preparation machine comprising:

a first part for supporting a cartridge separate from and received in the delivery head;

an upwardly directed inlet for supplying water to the cartridge;

a downwardly directed outlet for outflow of beverage;

a barcode reader having a barcode reader window that permits signals to be transmitted therethrough;

wherein the inlet, the outlet and the barcode reader window are arranged in a line with the outlet being intermediate the inlet and the barcode reader window;

a cartridge ejection chute having an opening sized to permit the cartridge to be advanced through the opening;

the inlet, the outlet, the barcode reader window and the cartridge ejection chute are located in a straight line on the delivery head; and

the outlet and the inlet being intermediate the barcode reader window and the cartridge ejection chute along the straight line on the delivery head;

a clamping member which is movable relative to the first part from an open position to a clamping position and to an ejection position;

in the open position the clamping member being positioned to enable loading of the cartridge into the delivery head;

in the clamping position the clamping member being clampable against said cartridge;

in the ejection position the clamping member being positioned to enable ejection of said cartridge;

the clamping member being movable in a direction parallel to the first part from the clamping position to the ejection position wherein movement of the clamping member towards the ejection position is such that an inlet of the cartridge and an outlet of the cartridge are moved away from, and do not pass over, or in the vicinity of, the barcode reader window of the delivery head.

13. The delivery head as claimed in claim 12 wherein the first part defines a support surface for the cartridge and the inlet, the outlet, and the barcode reader window are located in or on the first part.

14. The delivery head as claimed in claim 12 wherein the inlet comprises an inlet piercer for forming an inlet opening in the cartridge received in the delivery head and the outlet comprises an outlet piercer for forming an outlet opening in the cartridge received in the delivery head.

15. The delivery head as claimed in claim 14 wherein the inlet piercer and the outlet piercer are pivotal relative to the first part.

16. The delivery head as claimed in claim 12 wherein the barcode reader window is located toward a front of the delivery head and the cartridge ejection chute is located toward a rear of the delivery head.

17. The delivery head as claimed in claim 12 wherein a centroid of the inlet, a centroid of the outlet, and a centroid of the barcode reader window lie on a straight line.

18. The delivery head as claimed in claim 12 wherein the barcode reader window comprises a rectangular window, wherein a longer edge of the rectangular window is arranged perpendicularly to a line joining the inlet, the outlet and the barcode reader window.

19. A beverage preparation machine comprising the delivery head as claimed in claim 12 .