WO1990011122A1 - Buoyant tank carbonator pump control for post-mix beverage apparatus - Google Patents

Buoyant tank carbonator pump control for post-mix beverage apparatus Download PDF

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Publication number
WO1990011122A1
WO1990011122A1 PCT/US1990/001536 US9001536W WO9011122A1 WO 1990011122 A1 WO1990011122 A1 WO 1990011122A1 US 9001536 W US9001536 W US 9001536W WO 9011122 A1 WO9011122 A1 WO 9011122A1
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WO
WIPO (PCT)
Prior art keywords
carbonator
tank
container
water
volume
Prior art date
Application number
PCT/US1990/001536
Other languages
French (fr)
Inventor
Lawrence B. Ziesel
Robert D. Hughes
Original Assignee
The Coca-Cola Company
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 The Coca-Cola Company filed Critical The Coca-Cola Company
Priority to BR909006029A priority Critical patent/BR9006029A/en
Publication of WO1990011122A1 publication Critical patent/WO1990011122A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/236—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids specially adapted for aerating or carbonating beverages
    • B01F23/2363—Mixing systems, i.e. flow charts or diagrams; Arrangements, e.g. comprising controlling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00—Gas and liquid contact apparatus
    • Y10S261/07—Carbonators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2931—Diverse fluid containing pressure systems
    • Y10T137/3003—Fluid separating traps or vents
    • Y10T137/3021—Discriminating outlet for liquid
    • Y10T137/304—With fluid responsive valve
    • Y10T137/3052—Level responsive
    • Y10T137/3056—Weight or pressure
    • Y10T137/3059—Gravitating vessel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7287—Liquid level responsive or maintaining systems
    • Y10T137/7339—By weight of accumulated fluid
    • Y10T137/7355—In gravitating tank

Definitions

  • This invention relates generally to carbonation apparatus for supplying carbonated water to post-mix beverage apparatus and more particularly to apparatus for controlling the supply of water to a carbonator tank as demand for carbonated water changes.
  • Carbonation apparatus used in connection with post-mix carbonated beverage dispensers, for example, is generally known and includes means for supplying both uncarbonated water and carbon dioxide gas to a carbonator tank wherein the two are mixed to form carbonated water. It also includes a conduit for transporting the carbonated water, which extends from the carbonator tank to a post-mix dispensing nozzle where the carbonated water is mixed with a quantity of flavor concentrate or syrup.
  • the carbonator also includes
  • One type of pump control is known wherein a carbonator tank is mounted on a balance beam which has other components of the overall carbonator apparatus mounted on the opposite end of the beam. As the water level rises or falls in the carbonator tank, the tank will move up or down with the beam due to changes in weight of the tank, and the supply of water will be automatically controlled in response to this change in weight.
  • Yet a further object of the invention is to provide an improvement in the control of a pump utilized for supplying uncarbonated (still) water to a carbonator unit in a post-mix beverage dispenser.
  • a carbonator unit for a post-mix beverage dispenser having a carbonator tank immersed in a liquid flotation tank such as a water bath reservoir.
  • the carbonator tank floats up and down with changes in the amount of water and head space therein.
  • a switch device is mounted externally of the carbonator tank and is actuated thereby to control water supplied to the carbonator through a pump. Accordingly, buoyant forces associated with the entire carbonator unit are utilized to control water supply.
  • Figure 1 is a mechanical schematic diagram illustrative of one embodiment of the invention.
  • FIG. 2 is a mechanical schematic diagram illustrative of a second embodiment of the invention. Detailed Description of the Invention
  • reference numeral 10 denotes a carbonator tank formed in the general shape of a bottle which is manufactured from plastic material, for example polyetheylene terephthalate, and which is oriented upright and immersed in a volume of liquid 12, e.g. water, confined within a flotation tank container 14 which is open at the top.
  • Two or more vertical guide members 16 are located interiorally of the container 14 to restrict lateral movement of the carbonator tank/bottle 10 within the container 14.
  • the carbonator tank 10 is adapted to contain a variable amount of carbonated water 18 which is fed to a mixing nozzle, not shown, via a flexible tube or conduit 20 having an end section which extends down into the carbonated water 18 to a predetermined depth into the tank 10. Changes in the amount of the carbonated water 18 and the head space depend on the amount of uncarbonated water introduced thereto through an orifice 24 coupled to the end of a second flexible tube or conduit 26 which is connected to the output of a water pump 28 of any selected design and which may include either electrical, mechanical or pneumatic apparatus.
  • the pump 28 in turn, is connected to a supply source of uncarbonated or still water, not shown.
  • Carbon dioxide (C0 2 ) gas is introduced into the tank 10 by means of a third flexible tube or conduit 30 connected to a source of CO, not shown. All three tubes or conduits 20, 26 and 30 pass through an adapter or fitting 32, including the orifice 24, affixed to the open ended top of the tank 10 at or above the neck portion thereof.
  • the fitting 32 or an extension thereof acts as a switch actuator for a switch device 34, e.g. an electrical microswitch, which is mounted externally of and above the container 14 so as to be actuated by the upward movement of the tank as it floats upwardly due to depletion of the volume 18 of carbonated water therein.
  • the switch 34 is connected to a pump actuator 36 which turns the pump 28 on and off, depending upon the open and closed state of the switch 34. If the pump 28 comprises an electric pump, the microswitch 34 can be connected directly to the pump.
  • the immersed carbonator tank floats up and down depending upon the amount of carbonated water 18 it contains.
  • the buoyant forces associated with the carbonator tank 10 causes it to float upwardly until the fitting 32 contacts the switch device 38.
  • This in turn activates the pump 28, causing water to be fed into the tank through the orifice 24 where it mixes with carbon dioxide introduced via the conduit 38.
  • the mixed carbon dioxide and water accumulates in the tank 10, causing it to descend vertically in the container 14 under the constraints of the guide members 16.
  • the switch device Upon descent of the carbonator tank, the switch device is deactivated and the pump 28 turns off, inhibiting any further flow of uncarbonated or still water into the carbonator tank 10.
  • a second embodiment of the invention is shown in
  • Figure 2 and also uses the buoyant force principle in controlling the pump 28.
  • a metal carbonator tank 10' replaces the plastic bottle configuration of Figure 1.
  • the metal tank 10' additionally includes an elongated cylindrical neck portion 11 which extends through an opening 13 in the top wall 15 of a closed water tank 17 which acts as the flotation reservoir for the carbonator tank 10*.
  • a compression spring member 19 is located around the neck portion 11 between the outer surface of the top wall 15 and the under surface of the fitting 32 which, as noted before, acts as the actuator for the switch device 34.
  • the spring in addition to supplying a biasing force on the carbonator tank 10', causing it to move in an upward direction so as to close the switch device 34, also acts in combination with the opening 13 to constrain movement of the carbonator tank 10' in a vertical direction, thereby also restricting lateral movement.
  • the additional weight causes the tank 10 to descend vertically into the water bath 12 against the biasing action of the spring 19 whereupon at a predetermined level the switch 34 is opened, causing the water pump 28 to turn off.
  • the tank 10' will rise and again actuate the switch 34 to turn the pump 28 on.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Devices For Dispensing Beverages (AREA)

Abstract

A carbonator unit for a post-mix beverage dispenser having a carbonator tank (10) immersed in a liquid flotation tank (14). The carbonator tank floats up and down with changes in the amount of water and head space in the carbonator tank to actuate a switch device (34) mounted externally of the carbonator tank. Actuation of the switch causes a water pump (28) to become operative to supply uncarbonated water to the carbonator tank. When the volume of carbonated water increases to a predetermined amount, the carbonator tank sinks to deactivate the switch.

Description

"BUOYANT TANK CARBONATOR PUMP CONTROL FOR POST-MIX BEVERAGE APPARATUS"
Background of the Disclosure
This invention relates generally to carbonation apparatus for supplying carbonated water to post-mix beverage apparatus and more particularly to apparatus for controlling the supply of water to a carbonator tank as demand for carbonated water changes.
Carbonation apparatus, generally referred to as a carbonator, used in connection with post-mix carbonated beverage dispensers, for example, is generally known and includes means for supplying both uncarbonated water and carbon dioxide gas to a carbonator tank wherein the two are mixed to form carbonated water. It also includes a conduit for transporting the carbonated water, which extends from the carbonator tank to a post-mix dispensing nozzle where the carbonated water is mixed with a quantity of flavor concentrate or syrup. The carbonator also
normally includes some type of water pump to supply uncarbonated (still) water to the carbonator tank depending upon a sensed level of water in the tank. Both mechanical and electrical pump configurations have been utilized. In order to control the pump, some type of pump control is required to supply water in response to the level of carbonated water in the carbonator tank.
One type of pump control is known wherein a carbonator tank is mounted on a balance beam which has other components of the overall carbonator apparatus mounted on the opposite end of the beam. As the water level rises or falls in the carbonator tank, the tank will move up or down with the beam due to changes in weight of the tank, and the supply of water will be automatically controlled in response to this change in weight.
Summary Of The Invention Accordingly, it is an object of the present invention to provide an improvement in apparatus for making and dispensing carbonated water. it is another object of the invention to provide an improvement in the control of the supply of water to the carbonator for beverage dispensing apparatus.
It is a further object of the invention to provide an improved apparatus for controlling the dispensing of carbonated water in a post-mix beverage dispenser.
And yet a further object of the invention is to provide an improvement in the control of a pump utilized for supplying uncarbonated (still) water to a carbonator unit in a post-mix beverage dispenser.
The foregoing and other objects are realized by a carbonator unit for a post-mix beverage dispenser having a carbonator tank immersed in a liquid flotation tank such as a water bath reservoir. The carbonator tank floats up and down with changes in the amount of water and head space therein. A switch device is mounted externally of the carbonator tank and is actuated thereby to control water supplied to the carbonator through a pump. Accordingly, buoyant forces associated with the entire carbonator unit are utilized to control water supply. Brief Description of the Drawing
The invention will be more readily understood when the following detailed description of the invention is considered in light of the accompanying drawings, wherein:
Figure 1 is a mechanical schematic diagram illustrative of one embodiment of the invention; and
Figure 2 is a mechanical schematic diagram illustrative of a second embodiment of the invention. Detailed Description of the Invention
Referring now to the drawings and more particularly to Figure 1, reference numeral 10 denotes a carbonator tank formed in the general shape of a bottle which is manufactured from plastic material, for example polyetheylene terephthalate, and which is oriented upright and immersed in a volume of liquid 12, e.g. water, confined within a flotation tank container 14 which is open at the top. Two or more vertical guide members 16 are located interiorally of the container 14 to restrict lateral movement of the carbonator tank/bottle 10 within the container 14.
The carbonator tank 10 is adapted to contain a variable amount of carbonated water 18 which is fed to a mixing nozzle, not shown, via a flexible tube or conduit 20 having an end section which extends down into the carbonated water 18 to a predetermined depth into the tank 10. Changes in the amount of the carbonated water 18 and the head space depend on the amount of uncarbonated water introduced thereto through an orifice 24 coupled to the end of a second flexible tube or conduit 26 which is connected to the output of a water pump 28 of any selected design and which may include either electrical, mechanical or pneumatic apparatus. The pump 28, in turn, is connected to a supply source of uncarbonated or still water, not shown.
Carbon dioxide (C02) gas is introduced into the tank 10 by means of a third flexible tube or conduit 30 connected to a source of CO,, not shown. All three tubes or conduits 20, 26 and 30 pass through an adapter or fitting 32, including the orifice 24, affixed to the open ended top of the tank 10 at or above the neck portion thereof. The fitting 32 or an extension thereof acts as a switch actuator for a switch device 34, e.g. an electrical microswitch, which is mounted externally of and above the container 14 so as to be actuated by the upward movement of the tank as it floats upwardly due to depletion of the volume 18 of carbonated water therein. The switch 34 is connected to a pump actuator 36 which turns the pump 28 on and off, depending upon the open and closed state of the switch 34. If the pump 28 comprises an electric pump, the microswitch 34 can be connected directly to the pump.
Thus the immersed carbonator tank floats up and down depending upon the amount of carbonated water 18 it contains. When the amount of carbonated water 18 depletes to a predetermined level, the buoyant forces associated with the carbonator tank 10 causes it to float upwardly until the fitting 32 contacts the switch device 38. This in turn activates the pump 28, causing water to be fed into the tank through the orifice 24 where it mixes with carbon dioxide introduced via the conduit 38. The mixed carbon dioxide and water accumulates in the tank 10, causing it to descend vertically in the container 14 under
Figure imgf000007_0001
the constraints of the guide members 16. Upon descent of the carbonator tank, the switch device is deactivated and the pump 28 turns off, inhibiting any further flow of uncarbonated or still water into the carbonator tank 10. A second embodiment of the invention is shown in
Figure 2 and also uses the buoyant force principle in controlling the pump 28. As shown, a metal carbonator tank 10' replaces the plastic bottle configuration of Figure 1. The metal tank 10' additionally includes an elongated cylindrical neck portion 11 which extends through an opening 13 in the top wall 15 of a closed water tank 17 which acts as the flotation reservoir for the carbonator tank 10*. Additionally, a compression spring member 19 is located around the neck portion 11 between the outer surface of the top wall 15 and the under surface of the fitting 32 which, as noted before, acts as the actuator for the switch device 34. The spring in addition to supplying a biasing force on the carbonator tank 10', causing it to move in an upward direction so as to close the switch device 34, also acts in combination with the opening 13 to constrain movement of the carbonator tank 10' in a vertical direction, thereby also restricting lateral movement. As the carbonator tank 10' fills with water, the additional weight causes the tank 10 to descend vertically into the water bath 12 against the biasing action of the spring 19 whereupon at a predetermined level the switch 34 is opened, causing the water pump 28 to turn off. When the carbonated water 18 thereafter becomes depleted, the tank 10' will rise and again actuate the switch 34 to turn the pump 28 on.
Although such apparatus is relatively simple in design, it is nevertheless reliable and effective in controlling the amount of water fed to the carbonator tank on demand. Having thus shown and described what is at present considered to be the preferred embodiment of the invention, it should be noted that the same has been made by way of illustration and not limitation. Accordingly, all modifications, alterations and changes coming within the spirit and scope of the invention are herein meant to be included.

Claims

1. Carbonator apparatus , comprising : a first container for holding a predetermined volume of liquid therein; a second container holding a variable volume of carbonated water resulting from mixing a quantity of water and carbon dioxide, said second container being constrained to move in a vertical direction and floatable in said volume of liquid in said first container; means for feeding carbon dioxide from an external source into said second container; control means for feeding water from an external source into said second container to vary said volume of carbonated water and thus the flotation level of said second container in said first container; means for feeding carbonated water out of said second container; and means responsive to the flotation level of said second container for causing said control means to maintain the volume of carbonated water at a predetermined quantity.
2. The carbonator apparatus of claim 1 wherein said control means includes a water pump.
3. The carbonator apparatus of claim 1 wherein said second container comprises a carbonator tank.
4. the carbonator apparatus of claim 3 and additionally including means for restricting lateral movement of said second container while permitting free vertical movement thereof.
5. The carbonator apparatus of claim 3 wherein said means responsive to the flotation level comprises switch means and additionally include switch actuator means on the top portion of said second container.
6. The carbonator apparatus of claim 5 wherein said control means includes a water pump and wherein said switch means controls the operation of the water pump.
7. The carbonator apparatus of claim 6 wherein said first container comprises a flotation tank.
8. The carbonator apparatus of claim 7 wherein said carbonator tank includes a body portion, and a neck portion extending from said body portion and terminating in a mouth portion, and wherein said switch actuator means is located at said neck and mouth portions.
9. The carbonator apparatus of claim 8 wherein said carbonator t tank comprises a bottle type carbonator and additionally including guide means located in said flotation tank for restricting lateral movement of said carbonator tank.
10. The carbonator apparatus of claim 8 and additionally including spring bias means located on said neck portion for urging said actuator means into contact with said switch means.
11. The carbonator apparatus of claim 10 wherein said carbonator tank comprises a metal tank having an elongated cylindrical neck portion.
12. The carbonator apparatus of claim 8 and wherein said switch actuator means includes means for closing the mouth portion of said carbonator tank.
13. The carbonator apparatus of claim 12 wherein said means for feeding carbon dioxide, said means for feeding water in, and said means for feeding water out each include conduits feeding into said carbonator tank through said means for closing the mouth portion.
14. The carbonator apparatus of claim 8 wherein said switch means comprises an electrical switch and said water pump comprises an electrical pump.
15. Carbonator apparatus, comprising: an outer flotation tank including a predetermined volume of liquid; an inner carbonator tank containing a variable volume of carbonated water resulting from mixing a quantity of water and carbon dioxide gas, said carbonator tank being buoyant in said volume of liquid in said flotation tank; conduit means for feeding carbon dioxide gas from an external source into said carbonator tank; pump means and conduit means connected thereto for feeding water from an external source into said second container to vary said volume of carbonated water and thus the flotation level of said second container in said first container; conduit means for feeding carbonated water out of said second container; and means responsive to the flotation level of said carbonator tank for controlling said pump means to maintain the volume of carbonated water at a predetermined quantity in said carbonator tank.
16. The carbonator apparatus of claim 15 wherein said volume of liquid comprises a volume of water.
17. The carbonator apparatus of claim 15 wherein said inner carbonator tank comprises a bottle-type container.
18. The carbonator apparatus of claim 15 wherein said outer flotation tank includes means for restricting lateral movement of said inner carbonator tank.
19. The carbonator apparatus of claim 15 wherein said carbonator tank includes a body portion for holding said variable volume of carbonated water and an elongated neck portion for receiving the extremities of said conduit means.
20. The carbonator apparatus of claim 19 and additionally including spring means around said neck portion for stabilizing said carbonator tank generally vertically in said flotation tank.
PCT/US1990/001536 1989-03-29 1990-03-26 Buoyant tank carbonator pump control for post-mix beverage apparatus WO1990011122A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BR909006029A BR9006029A (en) 1989-03-29 1990-03-26 CARBONATOR APPLIANCE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/330,175 US4917831A (en) 1989-03-29 1989-03-29 Buoyant tank carbonator pump control for post-mix beverage apparatus
US330,175 1989-03-29

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WO1990011122A1 true WO1990011122A1 (en) 1990-10-04

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US (1) US4917831A (en)
EP (1) EP0417269A4 (en)
JP (1) JPH03502550A (en)
AU (1) AU621480B2 (en)
BR (1) BR9006029A (en)
CA (1) CA2029888A1 (en)
PH (1) PH26166A (en)
WO (1) WO1990011122A1 (en)

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CN102371128A (en) * 2010-07-12 2012-03-14 谢尔盖·亚历山德罗维奇·布奇克 Apparatus for carrying out mass-transfer processes in heterogeneous systems

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US5190189A (en) * 1990-10-30 1993-03-02 Imi Cornelius Inc. Low height beverage dispensing apparatus
US6196418B1 (en) 1999-02-19 2001-03-06 Mccann's Engineering & Mfg., Co. Carbonated and non-carbonated water source and water pressure booster
US20110277546A1 (en) * 2010-05-11 2011-11-17 Armitage David L Tank fullness monitoring system

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US639638A (en) * 1898-09-20 1899-12-19 Gustav A Weber Clothes-line fastener.
US1253941A (en) * 1915-09-07 1918-01-15 Lucius D Copeland Water-tank.
US2339640A (en) * 1940-08-03 1944-01-18 Carl J Holinger Liquid carbonation
US3059586A (en) * 1959-08-21 1962-10-23 Harrison D Brailsford Effluent sampler
US3465771A (en) * 1966-09-16 1969-09-09 Richard Tishler Water control device
US3578214A (en) * 1969-02-07 1971-05-11 Frank M Iannelli Carbonator
US3756576A (en) * 1970-02-26 1973-09-04 F Tremolada Apparatus for charging a liquid with gas
US4313897A (en) * 1980-01-30 1982-02-02 Bruce Garrard Gas and liquid admixing system
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Publication number Priority date Publication date Assignee Title
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Also Published As

Publication number Publication date
US4917831A (en) 1990-04-17
AU5421390A (en) 1990-10-22
PH26166A (en) 1992-03-18
EP0417269A1 (en) 1991-03-20
BR9006029A (en) 1991-08-06
AU621480B2 (en) 1992-03-12
EP0417269A4 (en) 1991-09-11
CA2029888A1 (en) 1990-09-30
JPH03502550A (en) 1991-06-13

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