Beverage Dispense Valve

Information

  • Patent Application
  • 20070228315
  • Publication Number
    20070228315
  • Date Filed
    March 30, 2007
    17 years ago
  • Date Published
    October 04, 2007
    17 years ago
Abstract
A beverage dispense valve is described comprising (i) a valve body; (ii) a female taper member inside the valve body and defining an internal chamber in fluid communication with a beverage inlet port and a beverage outlet port; the internal diameter of the chamber increasing in a downstream direction away from the beverage inlet port;(iii) a male taper member having a taper portion receivable in said internal chamber, the external diameter of the taper portion increasing in a downstream direction so as to be at least partially complementary to the female taper member, and having a hollow outlet portion downstream of the taper portion, one taper member being slidable relative to the other so that a flow passageway can be formed in an annular gap between them, the flow passageway providing a restrictive diffusing flow path for beverage and the two taper members forming a flow regulator;(iv) one or more apertures penetrating through the male taper member to allow beverage to pass from the flow passageway into the interior of the outlet portion,(v) a valve closure arrangement for sealing flow between the beverage inlet port and the beverage outlet port; and (vi) an actuating mechanism outside the valve body to operate both the flow regulator and the valve closure arrangement; wherein said valve closure arrangement is located at or adjacent to the maximum external diameter of the male taper member so that in its closed position the closure arrangement seals the flow passageway at the downstream end of the diffusing flow path but upstream of the apertures(s) which penetrate through the male taper member. The beverage dispense valve described allows simultaneous control of the flow rate of beverage through the valve in unison with the opening and closing of the valve.
Description

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will now be described with reference to the accompanying drawings.


The first embodiment of the invention described is the beverage dispense tap mounted in the vertical orientation and is described with reference to the following figures in which:



FIG. 1 is a front elevation of the Beverage Dispense Tap [BDT] in the closed position;



FIG. 2 is a vertical cross-section of the BDT in the closed position, on a line equivalent to A-A in FIG. 1;



FIG. 3 is a rear elevation of the BDT in the open position;



FIG. 4 is a vertical cross-section of the BDT in the open position, on a line equivalent to B-B in FIG. 3;



FIG. 5 is the same elevation as that shown in FIG. 2 with a partially sectioned view of the tap handle shroud and the remainder of the shroud cut away so as to show the relationship with the handle and the helical slot in the tap body;



FIG. 6 is a top view of the BDT in the closed position;



FIG. 7 is a top view of the BDT in the open position.



FIGS. 8 to 11 show a further embodiment of the invention in which the BDT is shown in a horizontal orientation:



FIG. 8 is a front elevation of the Beverage Dispense Tap [BDT] in the closed position;



FIG. 9 is a vertical cross-section of the valve body portion of the BDT in the closed position on a line equivalent to A-A in FIG. 8;



FIG. 10 is a front elevation of the BDT in the open position;



FIG. 11 is a vertical cross-section of the valve body portion of the BDT in the open position on a line equivalent to A-A in FIG. 10.


Claims
  • 1. A beverage dispense valve comprising (i) a valve body;(ii) a female taper member inside the valve body and defining an internal chamber in fluid communication with a beverage inlet port and a beverage outlet port; the internal diameter of the chamber increasing in a downstream direction away from the beverage inlet port;(iii) a male taper member having a taper portion receivable in said internal chamber, the external diameter of the taper portion increasing in a downstream direction so as to be at least partially complementary to the female taper member, and having a hollow outlet portion downstream of the taper portion, one taper member being slidable relative to the other so that a flow passageway can be formed in an annular gap between them, the flow passageway providing a restrictive diffusing flow path for beverage and the two taper members forming a flow regulator;(iv) one or more apertures penetrating through the male taper member to allow beverage to pass from the flow passageway into the interior of the outlet portion,(v) a valve closure arrangement for sealing flow between the beverage inlet port and the beverage outlet port; and(vi) an actuating mechanism outside the valve body to operate both the flow regulator and the valve closure arrangement; wherein said valve closure arrangement is located at or adjacent to the maximum external diameter of the male taper member so that in its closed position the closure arrangement seals the flow passageway at the downstream end of the diffusing flow path but upstream of the apertures(s) which penetrate through the male taper member.
  • 2. A beverage dispense valve according to claim 1 wherein the valve closure arrangement comprises a resilient sealing member protruding from the male taper member at or adjacent to its maximum diameter to seal against a valve seat on the chamber wall of the female taper member.
  • 3. A beverage dispense valve according to claim 2 wherein said valve closure arrangement further comprises an annular recess in the chamber wall of the female taper member at or adjacent to the maximum internal diameter of the chamber, the recess providing a shoulder on its upstream rim, so that in the closed position the resilient sealing member seals against the shoulder and in the open position the flow passageway extends past the sealing member in the gap defined by the recess.
  • 4. A beverage dispense valve according to claim 1 wherein said valve closure arrangement comprises a resilient sealing member protruding from the female taper member at or adjacent to its maximum internal diameter to seal against the maximum external diameter of the male taper member.
  • 5. A beverage dispense valve according to claim 1 wherein a linear flow path is provided through the outlet portion of the male taper member to the beverage outlet port.
  • 6. A beverage dispense valve according to claim 1 wherein the female taper member is moveably located within the valve body and the male taper member is fixed to the valve body.
  • 7. A beverage dispense valve according to claim 1 wherein the actuating mechanism is a handle assembly mechanism.
  • 8. A beverage dispense valve according to claim 7 wherein the valve body has an opening through which the handle assembly mechanism engages the moveable female taper member.
  • 9. A beverage dispense valve according to claim 7, wherein the handle assembly mechanism is adapted to operate both the flow regulator and the valve closure arrangement by means of angular rotation of the handle assembly mechanism relative to the valve body.
  • 10. A beverage dispense valve according to claim 9, wherein the handle assembly mechanism comprises a handle having an end portion which passes through an opening in the valve body to engage said female taper member.
  • 11. A beverage dispense valve according to claim 10 wherein the valve body has a helical slot through which the end portion of the handle can pass.
  • 12. A beverage dispense valve according to claim 11 wherein the exterior surface of the female taper member comprises a recess for engagement with the end portion of the handle.
  • 13. A beverage dispense valve according to claim 12 wherein the end portion of the handle comprises a cam follower for co-operation with said helical slot and a pin for engagement with the female taper member such that on rotation of said handle, the cam follower is guided by the helical slot and the pin engages the recess on the external surface of the female taper member such that the female taper is moved upstream or downstream and rotated as the cam follower moves along the helical slot.
  • 14. A beverage dispense valve according to claim 1, further comprising a shroud outside the valve body and on which the handle is mounted, said shroud being rotatable about the valve body.
  • 15. A beverage dispense valve according to claim 1 wherein the handle mechanism assembly is adapted to operate the flow regulator and the valve closure arrangement by means of linear movement of the handle relative to the valve body.
  • 16. A beverage dispense valve according to claim 15 wherein the handle assembly mechanism comprises a handle having an end portion which passes through an opening in the valve body to engage said female taper member.
  • 17. A beverage dispense valve according to claim 16 wherein the valve body has a concave cam surface adapted to receive the end portion of the handle mechanism assembly.
  • 18. A beverage dispense valve according to claim 17 wherein the exterior surface of the female taper member comprises a recess for engagement with the handle mechanism assembly.
  • 19. A beverage dispense valve according to claim 18 wherein the end portion of the handle comprises a cam for co-operation with the concave cam surface of the valve body and a pin extending from said cam for engagement with the female taper member such that on linear movement of said handle, the cam pivots in the concave cam surface and the pin engages the recess on the external surface of the female taper member such that the female taper is moved upstream or downstream as the cam pivots in the concave cam surface.
  • 20. A beverage dispense valve according to claim 1 further comprising a beverage dispense spout fixed to the male taper member forming a male taper member/spout assembly.
  • 21. A beverage dispense valve according to claim 20 wherein the female taper member is fixed to the valve body and the male taper member/spout assembly is slidable relative to the female taper member; and wherein the actuating mechanism is adapted to operate both the flow regulator and valve closure arrangement by moving the male taper member/spout assembly relative to the fixed female taper member.
  • 22. A beverage dispense valve comprising: (i) a valve body;(ii) a female taper member inside the valve body and defining an internal chamber in fluid communication with a beverage inlet port and a beverage outlet port; the internal diameter of the chamber increasing in a downstream direction away from the beverage inlet port;(iii) a male taper member having a taper portion receivable in said internal chamber, the external diameter of the taper portion increasing in a downstream direction so as to be at least partially complementary to the female taper member, and having a hollow outlet portion downstream of the taper portion, one taper member being slidable relative to the other so that a flow passageway can be formed in an annular gap between them, the flow passageway providing a restrictive diffusing flow path for beverage and the two taper members forming a flow regulator;(iv) a valve closure arrangement for sealing flow between the beverage inlet port and the beverage outlet port; and(v) an actuating mechanism outside the valve body to operate both the flow regulator and the valve closure arrangement, wherein the female taper member is moveably located within the valve body and the male taper member is fixed to the valve body.
  • 23. A beverage dispense valve according to claim 22 wherein the actuating mechanism is a handle assembly mechanism.
  • 24. A beverage dispense valve according to claim 23 wherein the valve body has an opening through which the handle assembly mechanism engages the moveable female taper member.
  • 25. A beverage dispense valve according to claim 24, wherein the handle assembly mechanism is adapted to operate both the flow regulator and the valve closure arrangement by means of angular rotation of the handle relative to the valve body.
  • 26. A beverage dispense valve according to claim 25, wherein the handle assembly mechanism comprises a handle having an end portion which passes through an opening in the valve body to engage said female taper member.
  • 27. A beverage dispense valve according to claim 26 wherein the valve body has a helical slot through which the end portion of the handle can pass.
  • 28. A beverage dispense valve according to claim 27 wherein the exterior surface of the female taper member comprises a recess for engagement with the end portion of the handle.
  • 29. A beverage dispense valve according to claim 28 wherein the end portion comprises a cam follower for co-operation with said helical slot and a pin for engagement with the female taper member such that on rotation of said handle, the cam follower is guided by the helical slot and the pin engages the recess on the external surface of the female taper member such that the female taper is moved upstream or downstream and rotated as the cam follower moves along the helical slot.
  • 30. A beverage dispense valve according to claim 22 further comprising a shroud outside the valve body and on which the handle is mounted, said shroud being rotatable about the valve body.
  • 31. A beverage dispense valve according to claim 22 wherein the handle mechanism assembly is adapted to operate both the flow regulator and the valve closure arrangement by means of linear movement of the handle relative to the valve body.
  • 32. A beverage dispense valve according to claim 31 wherein the handle assembly mechanism comprises a handle having an end portion which passes through an opening in the valve body to engage said female taper member.
  • 33. A beverage dispense valve according to claim 32 wherein the valve body has a concave cam surface adapted to receive the end portion of the handle mechanism assembly.
  • 34. A beverage dispense valve according to claim 33 wherein the exterior surface of the female taper member comprises a recess for engagement with the handle mechanism assembly.
  • 35. A beverage dispense valve according to claim 34 wherein the end portion of the handle comprises a cam for co-operation with the concave cam surface of the valve body and a pin extending from said cam for engagement with the female taper member such that on linear movement of said handle, the cam pivots in the concave cam surface and the pin engages the recess on the external surface of the female taper member such that the female taper is moved upstream or downstream as the cam pivots in the concave cam surface.
  • 36. A beverage dispense valve according to claim 22 further comprising one or more apertures penetrating through the male taper member to allow beverage to pass from the flow passageway into the interior of the outlet portion.
  • 37. A beverage dispense valve according to claim 36 wherein a linear flow path is provided through the outlet portion of the male taper member to the beverage outlet port.
  • 38. A beverage dispense valve according to claim 37 wherein said valve closure arrangement is located at or adjacent to the maximum external diameter of the male taper member so that in its closed position the closure arrangement seals the flow passageway at the downstream end of the diffusing flow path but upstream of the apertures(s) which penetrate through the male taper member.
  • 39. A beverage dispense valve according to claim 38 wherein the valve closure arrangement comprises a resilient sealing member protruding from the male taper member at or adjacent to its maximum diameter to seal against a valve seat on the chamber wall of the female taper member.
  • 40. A beverage dispense valve according to claim 39 wherein said valve closure arrangement further comprises an annular recess in the chamber wall of the female taper member at or adjacent to the maximum internal diameter of the chamber, the recess providing a shoulder on its upstream rim, so that in the closed position the resilient sealing member seals against the shoulder and in the open position the flow passageway extends past the sealing member in the gap defined by the recess.
  • 41. A beverage dispense valve according to claim 38 wherein said valve closure arrangement comprises a resilient sealing member protruding from the female taper member at or adjacent to its maximum internal diameter to seal against the maximum external diameter of the male taper member.
Priority Claims (2)
Number Date Country Kind
0606378.8 Mar 2006 GB national
S2006/0250 Mar 2006 IE national