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1. WO2018142149 - KEG CLOSURE HOUSING WITH INTEGRALLY FORMED INNER DUCT

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[ EN ]

CLAIMS

1. A closure for a beverage keg, the closure comprising an outer housing wall defining at least a portion of a valve housing and an inner duct that is located within the outer housing wall and extends through at least a portion of the valve housing to define a flow path through the closure, wherein the outer housing wall and the inner duct are integrally formed together as part of a single housing component.

2. A closure according to claim 1 , wherein the outer housing wall is connected to the inner duct by a connecting portion extending radially inwardly from the outer housing wall.

3. A closure according to claim 2, wherein the connecting portion extends inwardly from a location at or near to a base of the outer housing wall, the base defining a bottom end of the valve housing.

4. A closure according to claim 2, wherein the connecting portion defines a base of the valve housing, the base defining a bottom end of the valve housing.

5. A closure according to any of claims 2 to 4, comprising a valve element and a biasing device that is configured to bias the valve element towards a closed position, wherein a lower end of the biasing device rests against the connecting portion.

6. A closure according to any of claims 2 to 5, wherein the connecting portion takes the form of a wall or a plurality of struts connecting the outer housing wall to the inner duct.

7. A closure according to any of claims 2 to 6, wherein the connecting portion includes one or more apertures formed therein.

8. A closure according to any of claims 2 to 7, wherein the inner duct extends below the connecting portion to define a tail portion that is configured to be connected to an elongate tube or spear.

9. A closure according to any of claims 1 to 8, wherein the outer housing wall is at least substantially annular.

10. A closure according to any of claims 1 to 9, wherein at least a portion of the outer housing wall is configured to be received within a neck of a keg when the closure is fitted to a keg.

1 1. A closure according to any of claims 1 to 10, wherein the housing component is connected to a separate outer component, the outer component providing a head portion of the closure that is configured for attachment to a filling head or dispense head and/or an attachment portion configured for attachment to a neck of a keg.

12. A closure according to any of claims 1 to 11 , wherein the inner duct is provided with a centre cover at its upper end, the centre cover comprising an end cap, situated above the upper end and spaced slightly apart therefrom such that the centre cover does not seal the upper end of the inner duct, but allows fluid communication between an interior of the inner duct and a region immediately surrounding the upper end.

13. A closure according to claim 12, wherein the centre cover further comprises a plurality of legs extending downwardly from the end cap, each comprising an outwardly protruding clip formation for being received in and engaging with the inner duct.

14. A closure according to any of claims 1 to 13, further comprising an inlet for admitting a pressurised gas into a headspace of the beverage keg and a venting system separate from the inlet that is configured to provide fluid communication between the headspace of the keg and an exterior of the closure, wherein the venting system is provided in the outer housing wall.

15. A closure according to claim 14, further comprising a barrier that seals the venting system such that the closure is able to retain the pressurised gas within the keg in an unvented configuration, and wherein the barrier is configured to rupture and/or become at least partially detached from the closure by internal pressure from within the keg in order to switch the closure into a vented configuration in which the venting system is no longer sealed by the barrier.

16. A closure according to claim 14 or 15, wherein the housing component is connected to a separate outer component, the outer component providing a head portion of the closure that is configured for attachment to a filling head or dispense head and/or an attachment portion configured for attachment to a neck of a keg.

17. A closure according to claim 16, wherein the head portion comprises an outer wall extending around at least a portion of the outer housing wall, the outer wall at least partially covering the venting system.

18. A closure according to claim 17, wherein the outer wall is provided with at least one aperture that is configured to permit inspection of and/or access to the venting system through the outer wall.

19. A closure for a beverage keg, the closure comprising a housing wall defining at least a portion of a valve housing, an inlet for admitting a pressurised gas into a headspace of the beverage keg and a venting system provided in the housing wall, separate from the inlet and configured to provide fluid communication between the headspace of the keg and an exterior of the closure, the valve housing being connected to a separate outer component, the outer component providing a head portion of the closure that is configured for attachment to a filling head or dispense head and/or an attachment portion configured for attachment to a neck of a keg.

20. A closure according to claim 19, wherein the head portion comprises an outer wall extending around at least a portion of the housing wall, the outer wall at least partially covering the venting system.

21. A closure according to claim 20, wherein the outer wall is provided with at least one aperture that is configured to permit inspection of and/or access to the venting system through the outer wall.

22. A closure according to any of claims 19 to 21 , wherein the outer wall is part of a head portion of the closure that is configured for attachment to a filling head or dispense head and/or part of an attachment portion configured for attachment to a neck of the keg.

23. A closure according to any of claims 1 to 22, wherein the housing component is an injection moulded plastics component.

24. A beverage keg supplied with or fitted with a closure according to any of claims 1 to 23.