EP0300701A1 - Flüssigkeitsspender - Google Patents

Flüssigkeitsspender Download PDF

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Publication number
EP0300701A1
EP0300701A1 EP88306502A EP88306502A EP0300701A1 EP 0300701 A1 EP0300701 A1 EP 0300701A1 EP 88306502 A EP88306502 A EP 88306502A EP 88306502 A EP88306502 A EP 88306502A EP 0300701 A1 EP0300701 A1 EP 0300701A1
Authority
EP
European Patent Office
Prior art keywords
fluid
pressure
chamber
regulating valve
valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP88306502A
Other languages
English (en)
French (fr)
Inventor
Bernard Alfred Cook
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0300701A1 publication Critical patent/EP0300701A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/08—Details
    • B67D1/12—Flow or pressure control devices or systems, e.g. valves, gas pressure control, level control in storage containers
    • B67D1/14—Reducing valves or control taps
    • B67D1/1405—Control taps
    • B67D1/145—Control taps comprising a valve shutter movable in a direction perpendicular to the valve seat
    • B67D1/1455—Control taps comprising a valve shutter movable in a direction perpendicular to the valve seat the valve shutter being opened in the same direction as the liquid flow

Definitions

  • This invention relates to a fluid dispenser, in particular a dispenser for dispensing quantities of beer, lager or the like at a bar.
  • An object of this invention is to provide an improved fluid dispenser.
  • a fluid dispenser comprising: valve means for controlling a flow of a first fluid being dispensed in use; a chamber containing an actuating fluid, the valve means being operable in response to the pressure of the actuating fluid; and means for controlling the pressure of the actuating fluid within the chamber over a period of time, whereby the flow rate of the first fluid is also controlled over a period of time.
  • the actuating fluid in use is at a positive pressure which is released in a controlled manner to atmosphere by means of a bleed valve.
  • the actuating fluid is a gas supplied under pressure on manual manipulation of an operating lever.
  • This invention also includes a fluid dispenser comprising a regulating valve which controls the flow rate of a fluid through a dispensing outlet, the regulating valve being operable in response to the pressure of an actuating fluid in a chamber, wherein the chamber is connected to a further body of fluid by means which allow the fluid pressures of the chamber and the body, when different, to approach one another at a controlled rate, the resulting change in the pressure within the chamber, over a period of time, causing a corresponding change in the opening of the regulating valve.
  • the further body of fluid is the atmosphere, so that the fluid within the chamber approaches ambient pressure, at which point the regulating valve shuts off the fluid flow through the dispensing outlet.
  • the initial pressure in the chamber may be higher or lower than ambient pressure, but is preferably higher, and the actuating fluid is preferably a gas such as carbon dioxide.
  • a fluid dispenser 10 is shown in two operative states, one in each of half-­sections A and B.
  • the embodiment shown is particularly suitable for dispensing effervescent beverages such as beer, lager or the like at a bar and is thus described hererinafter in this context, although it will be clear to those skilled in the art that the dispenser of this invention can be used to dispense any fluid.
  • Dispenser 10 has a dispensing outlet 12 at its lower end as shown and as in use, through which beer or other fluid can flow, the beer being supplied from a source (not shown via an inlet pipe 14 which is connected into one side of the dispenser. Between inlet pipe 14 and dispensing outlet 12 is a duct through which the beer can pass, the beer flow being controlled by a regulating valve 16 situated within the duct on the longitudinal axis of the dispenser, which is axially movable between the fully closed and fully open positions shown in half-sections A and B respectively.
  • regulating valve 16 has frusto-conical seating surfaces as shown, which are preferably resilient to facilitate sealing.
  • the regulating valve 16 is attached to a rod 20 which has a piston 22 rigidly connected to its upper end, the rod 20 extends along the axis of the dispenser 10 and is slideable along that axis.
  • Piston 22 is movable within a chamber 24 and is connected to a rolling diaphragm 26 which seals one end of the chamber, whereby a force may be exerted upon piston 22 by creating a pressure differential across the diaphragm. Therefore the opening of valve 16 is determined by the balance between the forces exerted by the coil spring 18 and by the pressure of fluid within chamber 24.
  • a shuttle valve 28 which is movable along the longitudinal axis of dispenser 10 by means of a cam 30, operable by manual manipulation of a lever 32.
  • the shuttle valve 28 In the rest position, shown in half-section "A" in Figure 1, the shuttle valve 28 allows fluid communication, via an annular duct, between a pressurised gas inlet 34 and an annular chamber 36, thereby filling the annular chamber 36 with gas at the supplied presure.
  • the chamber 24 With the shuttle valve 28 in this position, the chamber 24 is sealed off from the annular chamber 36 and from the pressurised gas inlet 34, and contains gas at a lower pressure than that in annular chamber 36 as will be explained.
  • lever 32 When a quantity of beer is to be dispensed, lever 32 is moved into its operating position shown in half section "B" of Figure 1, which moves the shuttle valve 28 along its axis as shown by means of the cam 30.
  • Cam 30 suitably has an over-centre action to urge the lever into this position until deliberately released.
  • the shuttle valve 28 closes off gas inlet 34, preventing the intake of further pressurised gas, and also connects chamber 24 to annular chamber 36, which equalises the pressure within both chambers.
  • the pressure within chamber 24 is raised to an extent which forces the piston 22 and diaphragm 26 to move against the force of spring 18 and so fully open the regulating valve 12. This allows the beer or whatever other fluid is being dispensed to flow from the inlet pipe 14 through the dispensing outlet 12, under its own pressure or pressure derived from some external pumping means.
  • the pressure within chamber 24 is then gradually reduced by the controlled release of gas to the surrounding atmosphere via a micrometer control needle valve 38. As the pressure within chamber 24 drops, thereby exerting less force on piston 22, spring 18 is allowed to extend, progressively closing regulating valve 16 until, after a period of time, the flow of beer through the dispensing outlet 12 is stopped. Lever 32 can then be moved back to its rest position whereupon the dispener 10 is ready to dispense the required amount of beer again.
  • the amount of beer or other fluid dispensed by each operation of the dispenser 10 is principally dictated by the length of time over which the regulating valve 16 is open, and to what extent it is open over that period. It is clearly desirable to have some control over the amount dispensed per operation, and this control may be conveniently achieved by making the needle valve 38 adjustable so as to control the rate at which the gas within the chamber 24 is allowed to escape. Some adjustment of the needle valve 38 or the source of gas pressure is desirable in order to make the dispenser more versatile and to accommodate fluctations in the pressure of the fluid being dispensed.
  • the dispenser 10 shown in Figure 1 incorporates refinements which facilitate its use dispensing drinks in a bar. These include an override control 40 which allows a barman to abort the dispensing operation before the full pre-set amount is dispensed, as is desirable if, for instance, a customer changes his mind after ordering a drink. As shown in the enlarged views of Figures 2 and 3, override control 40 comprises a spring-­loaded pull sleeve 42 which, when pulled out as shown in Figure 3, uncovers an exhaust port 44, thereby quickly reducing the pressure in chamber 24 so as to allow regulating valve 16 to shut.
  • override control 40 comprises a spring-­loaded pull sleeve 42 which, when pulled out as shown in Figure 3, uncovers an exhaust port 44, thereby quickly reducing the pressure in chamber 24 so as to allow regulating valve 16 to shut.
  • a further refinement is a top-up control 46 which allows the barman to dispense any volume of drink, irrespective of the pre-set volume. This provision is particularly useful for compensating for any volume changes which may occur as a result of temperature changes in the beer as it is delivered, as occurs when the initial slug of beer in the dispenser is warmer than that in the supply source.
  • the top-up facility is alos useful for delivering non standard quantities of beer, or for allowing the dispenser to be used if for any reason it fails with the regulating valve 16 shut.
  • top-up control 46 comprises a spring-loaded pull valve 48 having a resilient frusto-conical seating surface 50 seating on cross ports 52, which by-pass the seated regulating valve 16. Accordingly, when valve 48 is pulled out as shown in Figure 5 beer can flow through cross ports 52 and out of the dispensing outlet 12 even when regulating valve 16 is closed.
  • the top-up control 46 comprises a rotary screwed valve 48 having aresilient frustoconical seating surface 50 seating on cross ports 52 which by-pass the seated regulating valve 16. Accordingly, when valve 48 is unscrewed as shown in Figure 6 beer can flow through cross ports 52 and out of the dispensing outlet 12 even when regulating valve 16 is closed.
  • the pressurised gas such as CO2 required by dispenser 10 is suitably derived from the high pressure stage of a two-stage gas bottle pressure reducing set, the low pressure stage typically being about 5 psi lower in pressure and connected to a beer keg in the normal way. Accordingly only the beer source need be connected to the normal cellar gas supply with the pressurised gas air or CO2 being obtained from a separate source such as a compressor or a second gas bottle.
  • CO2 gas is envisaged here only because it is likely to be readily to hand in a cellar, but it will be clear to those skilled in the art that a liquid could equally well be used in this or any other application.
  • dispensing outlet 12 is readily interchangeable with outlets specificaally designed for the dispense of specialist beers.
  • An example is shown in Fig. 7 for dispensing 'GUINNESS' where the outlet 12 is provided with a nozzle 60.
  • the nozzle 60 has an orifice plate 61 seated by means of an 'O' ring 62 and through which beer is dispensed via a flow straightener 63.

Landscapes

  • Devices For Dispensing Beverages (AREA)
EP88306502A 1987-07-21 1988-07-15 Flüssigkeitsspender Withdrawn EP0300701A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8717163 1987-07-21
GB878717163A GB8717163D0 (en) 1987-07-21 1987-07-21 Fluid dispenser

Publications (1)

Publication Number Publication Date
EP0300701A1 true EP0300701A1 (de) 1989-01-25

Family

ID=10621005

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88306502A Withdrawn EP0300701A1 (de) 1987-07-21 1988-07-15 Flüssigkeitsspender

Country Status (2)

Country Link
EP (1) EP0300701A1 (de)
GB (1) GB8717163D0 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004083102A1 (en) * 2003-03-13 2004-09-30 Younkle Matthew C Beverage dispensing appartus
EP1625364A1 (de) * 2003-03-13 2006-02-15 Laminar Technologies, Llc. Getränkeausgabevorrichtung
US7823411B2 (en) 2006-12-15 2010-11-02 Niagara Dispensing Technologies, Inc. Beverage cooling system
US7861740B2 (en) 2005-12-15 2011-01-04 Niagara Dispensing Technologies, Inc. Digital flow control
CN102556923A (zh) * 2012-01-11 2012-07-11 玉环县和成铜业有限公司 一种啤酒灌装装置
US8833405B2 (en) 2005-12-15 2014-09-16 DD Operations Ltd. Beverage dispensing

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1067848A (en) * 1963-09-27 1967-05-03 Sloan Valve Co Valve for dispensing fluids
US4226343A (en) * 1978-08-28 1980-10-07 Custom Systems Associates, Inc. Valving apparatus
US4381099A (en) * 1981-04-28 1983-04-26 The Penmont Company Faucet for frozen carbonated beverage machine
GB2145396A (en) * 1983-08-26 1985-03-27 Homark Associates Ltd Apparatus for dispensing pressurised liquid

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1067848A (en) * 1963-09-27 1967-05-03 Sloan Valve Co Valve for dispensing fluids
US4226343A (en) * 1978-08-28 1980-10-07 Custom Systems Associates, Inc. Valving apparatus
US4381099A (en) * 1981-04-28 1983-04-26 The Penmont Company Faucet for frozen carbonated beverage machine
GB2145396A (en) * 1983-08-26 1985-03-27 Homark Associates Ltd Apparatus for dispensing pressurised liquid

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1842829A2 (de) * 2003-03-13 2007-10-10 Laminar Technologies, Llc. Getränkeausgabevorrichtung
EP1625364A1 (de) * 2003-03-13 2006-02-15 Laminar Technologies, Llc. Getränkeausgabevorrichtung
JP2006513937A (ja) * 2003-03-13 2006-04-27 ヨーンクル，マシュー，シー． 飲料注ぎ出し装置
US7040359B2 (en) 2003-03-13 2006-05-09 Laminar Technologies, Llc Beverage dispensing apparatus
EP1625364A4 (de) * 2003-03-13 2006-08-02 Laminar Technologies Llc Getränkeausgabevorrichtung
US7278454B2 (en) 2003-03-13 2007-10-09 Laminar Technologies, Llc Beverage dispensing apparatus
WO2004083102A1 (en) * 2003-03-13 2004-09-30 Younkle Matthew C Beverage dispensing appartus
EP1842829A3 (de) * 2003-03-13 2008-01-09 Laminar Technologies, Llc. Getränkeausgabevorrichtung
EP1980526A1 (de) * 2003-03-13 2008-10-15 Matthew C. Younkle Getränkeausgabevorrichtung
US7861740B2 (en) 2005-12-15 2011-01-04 Niagara Dispensing Technologies, Inc. Digital flow control
US8833405B2 (en) 2005-12-15 2014-09-16 DD Operations Ltd. Beverage dispensing
US7823411B2 (en) 2006-12-15 2010-11-02 Niagara Dispensing Technologies, Inc. Beverage cooling system
CN102556923A (zh) * 2012-01-11 2012-07-11 玉环县和成铜业有限公司 一种啤酒灌装装置

Also Published As

Publication number Publication date
GB8717163D0 (en) 1987-08-26

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