US3648477A - Tank defroster for beverage dispensing machine - Google Patents

Tank defroster for beverage dispensing machine Download PDF

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Publication number
US3648477A
US3648477A US50030A US3648477DA US3648477A US 3648477 A US3648477 A US 3648477A US 50030 A US50030 A US 50030A US 3648477D A US3648477D A US 3648477DA US 3648477 A US3648477 A US 3648477A
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United States
Prior art keywords
tank
layer
coils
mastic
refrigeration unit
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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.)
Expired - Lifetime
Application number
US50030A
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English (en)
Inventor
Edward W Shartle
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HS DEECO Inc A CORP OF
Original Assignee
Fasco Industries Inc
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Filing date
Publication date
Application filed by Fasco Industries Inc filed Critical Fasco Industries Inc
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Publication of US3648477A publication Critical patent/US3648477A/en
Assigned to FASCO INDUSTRIES, INC., A CORP. OF DE reassignment FASCO INDUSTRIES, INC., A CORP. OF DE CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: HS DEECO INC.
Assigned to HS DEECO, INC., A CORP. OF DE reassignment HS DEECO, INC., A CORP. OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: FASCO INDUSTRIES, INC., A CORP. OF NY
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06—Removing frost
    • F25D21/08—Removing frost by electric heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D31/00—Other cooling or freezing apparatus
    • F25D31/006—Other cooling or freezing apparatus specially adapted for cooling receptacles, e.g. tanks

Definitions

  • Each tank has the usual tap or spigot, and is surrounded by a [52] U.S.CI ..62/155, 62/156, 62/351, helically-wound tubular evaporator or cooling coil which is 62/3 6 connected in the usual manner to a refrigerator unit in the [5 ..F25d dispenser and a he
  • FIG. 2 EDWARD w. SHARTLE 2.: ATTORiEYS TANK DEFROSTER FOR BEVERAGE DISPENSING MACHINE This invention relates to a beverage dispenser, and more particularly to a defrosting device for a slush-type beverage dispenser.
  • Soft drinks of the type that are dispensed in slush form have become quite popular in recent years.
  • a refrigerated dispenser which causes small crystals of ice to form in the soft drink while still in the dispenser, the need for subsequently adding ice to the drink after it is dispensed is eliminated.
  • the slush-type soft drink remains cold for a substantially longer period of time.
  • the primary object of this invention is to provide an improved soft drink dispenser which can rapidly and readily be defrosted, when desired.
  • a further object of this invention is to provide an improved dispenser of the type described, which has improved means for regulating the size of ice crystals formed in the drinks dispensed therefrom.
  • FIG. 1 is a perspective view of a typical slush-type soft drin dispenser incorporating a defrosting device made in accordance with one embodiment of this invention
  • FIG. 2 is an enlarged, fragmentary sectional view taken generally along the line 2-2 in FIG. 1 looking in the direction of the arrows;
  • FIG. 3 is a wiring diagram illustrating one manner in which this defrosting device may be wired for operation.
  • each tank 16 denotes generally a soft drink dispenser having in its lower section 12 a conventional refrigeration unit (not illustrated), and in its upper section 14 a pair of cylindrical chilling tanks 16, only one of which is illustrated in FIG. 2.
  • Each tank 16 is supported by a plurality of feet 17, or the equivalent, on a horizontal base plate 18, which is fastened on a shelf 19 above the dispensers refrigeration unit.
  • Each tank 16 has the usual fluid discharge pipe or spigot 21, which projects from the lower end of the tank through a registering opening in a front panel or cover 22 for the section 14.
  • Each spigot contains the usual, normally closed flow valve (not illustrated), which is operable manually by a headed or knobbed lever 23, which projects from each spigot.
  • each tank 16 Wound around the outside of each tank 16 in a helical path axially of the tank, is an evaporator or cooling coil 26 opposite ends of which extend downwardly beneath shelf 19 for attachment in the usual manner to the refrigeration unit. Also wound in a helical path around the outside of each tank 16, with its convolutions alternating with those of the associated cooling coil 26, is an insulated electric heating element or wire 28, which may be of the type used for radiant cable heat. Both the cooling coil 26 and the heating cable 28 are cemented or secured to the outside surface of the tank by a layer or coating 30 of thermal conducting mastic, which remains flexible indefinitely. While in practice this layer 30 of mastic material is relatively thin, in FIG. 2 its thickness has been exaggerated for purposes of illustration.
  • the tanks 16 are contained within the upper section 14 of the dispenser 10, and the space between the tanks and the housing 14 is filled with a conventional heat insulating material 32, so that the tanks are completely encapsulated in thermal insulation.
  • lines L1 and L2 represent a typical means for supplying power to the heating and cooling elements of one of the tanks 16 in the dispenser 10. These lines are adapted to be connected in any conventional manner to an AC power source.
  • lines LI and L2 Connected in parallel between lines LI and L2 are the heater coil or element 28 for a tank, and the motor 40 for the refrigeration unit, that provides the coolant for the evaporator or cooling coil 26 of that tank.
  • the heater coil 28 and the motor 40 are controlled by a double-throw switch 42, which has a first contact 42-1 connected in series with the coil 28, and a second contact 42-2 connected in series with the motor 40. When the switch 42 is in the OFF position illustrated in FIG. 3, both the coil 28 and the motor 40 are deenergized.
  • switch 42' When switch 42'is moved to a first or COLD position, its contact 42-2 closes to energize the motor 40, but its contact 42-1 remains open to maintain the heater coil deenergized. On the other hand, when the switch 42 is moved to its HEAT" position, contact 42-1 closes to energize the heater coil 28, while the contact 42-2 remains open to maintain the motor 40 deenergized.
  • each switch 42 In use, and assuming for purposes of illustration that the heating and cooling coils of each tank 16 are controlled by separate switches 42, so that the coils of one tank 16 are energizable independently of the coils of the other tank; and assuming also that the tanks 16 have been filled with the desired soft drinks, each switch 42 usually is disposed in its COLD" position, so that the associated motor 40 is operating to maintain the contents of the associated tank 16 chilled to the point where the soft drink is in slush form upon being dispensed from one of the spigots 21. If the ice crystals in the slush become too large, or too lumpy, the operator need only manipulate switch 42 to shutdown the refrigeration cycle, and turn on the electric heater coil 28 to accelerate defrosting of the tank.
  • a timer or thermostat may be provided to automatically restart refrigeration when the defrosting cycle is complete.
  • 44 denotes a timer or thermostat.
  • the unit 44 willrelease a spring or actuate a solenoid (not shown) to deenergize coil 28 and shift switch 42 automatically to again close the current to the motor 40 that supplies refrigerant to the cooling coil 26.
  • any residual heat, or lack thereof, in the respective coils will have little effect upon the subsequently energized or actuated coil.
  • a permanently flexible mastic material 30 for holding the coils around and against the associated tank 16, the rapid temperature changes, which occur upon movement of a switch 42 between its two operative positions, create no undue stresses in the system; the flexible coating 30 will absorb any sudden expansion or contraction of the coils 26 and/or 28.
  • switch 42 has been illustrated and described for controlling each coil 28 and motor 40, it will be apparent to one skilled in the art, that any number of coils 28 could be connected in parallel with one another to be controlled by switch contact 42-1. Similarly a single motor 40 could be used for supplying a coolant to a plurality of the cooling coils 26, Also, if desired, a conventional timer could also be employed for automatically effecting operation of either the coil 28 or motor 40, or both.
  • Apparatus for dispensing soft drinks in slush-ice form while maintaining the proper consistency of the slush-ice comprising a tank for holding a soft drink,
  • a spigot connected at one end to the bottom of said tank, and projecting at its opposite end through said insulation and said housing to the exterior of the housing. and operable for controlling the flow of drink from the tank, and
  • said layer of mastic being flexible, to permit expansion and contraction of said coils in response to temperature changes produced therein.
  • actuating means includes means for reactuating said refrigeration unit automatically upon deactivation of said heater coil.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Defrosting Systems (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
US50030A 1970-06-26 1970-06-26 Tank defroster for beverage dispensing machine Expired - Lifetime US3648477A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5003070A 1970-06-26 1970-06-26

Publications (1)

Publication Number Publication Date
US3648477A true US3648477A (en) 1972-03-14

Family

ID=21963019

Family Applications (1)

Application Number Title Priority Date Filing Date
US50030A Expired - Lifetime US3648477A (en) 1970-06-26 1970-06-26 Tank defroster for beverage dispensing machine

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US (1) US3648477A (OSRAM)
JP (1) JPS503310Y2 (OSRAM)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3943727A (en) * 1974-04-10 1976-03-16 Wade George C Portable electric water cooler suitable for outdoor use
US4379390A (en) * 1977-02-28 1983-04-12 Bottum Edward W Ice-making evaporator
US4442681A (en) * 1981-09-28 1984-04-17 Fischer Harry C Ice-maker
US4485831A (en) * 1982-09-02 1984-12-04 D.O.C.E Corporation Cooking oil salvage system
US4543058A (en) * 1983-02-28 1985-09-24 Allied Corporation Method of using a high-pressure vessel furnace
US5967226A (en) * 1996-11-29 1999-10-19 Lg Industrial Systems, Co., Ltd. Slush machine
US20060289145A1 (en) * 2001-05-22 2006-12-28 Jones James L Tube type heat exchanger with motor or generator housing
CN100371669C (zh) * 2005-03-07 2008-02-27 奇迪电器集团有限公司 卧式直饮机
WO2008065175A1 (de) * 2006-11-29 2008-06-05 Josef Höller Gmbh Kühl- und wärmeplatte, insbesondere für die präsentation von speisen und getränken
US20160273843A1 (en) * 2015-03-17 2016-09-22 Hatco Corporation Hot and cold shelf assembly with replaceable heating elements
US12089612B2 (en) 2021-09-30 2024-09-17 Bunn-O-Matic Corporation Heating system for cold drink apparatus and methods of use

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2601466A (en) * 1950-06-20 1952-06-24 Avco Mfg Corp Defroster circuit
US2744391A (en) * 1951-08-03 1956-05-08 Deane Gerald Newenham Apparatus for freezing, cooling beverages or comestibles
US3469415A (en) * 1967-12-08 1969-09-30 Cornelius Co Heat exchanger for a beverage dispensing machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2601466A (en) * 1950-06-20 1952-06-24 Avco Mfg Corp Defroster circuit
US2744391A (en) * 1951-08-03 1956-05-08 Deane Gerald Newenham Apparatus for freezing, cooling beverages or comestibles
US3469415A (en) * 1967-12-08 1969-09-30 Cornelius Co Heat exchanger for a beverage dispensing machine

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3943727A (en) * 1974-04-10 1976-03-16 Wade George C Portable electric water cooler suitable for outdoor use
US4379390A (en) * 1977-02-28 1983-04-12 Bottum Edward W Ice-making evaporator
US4442681A (en) * 1981-09-28 1984-04-17 Fischer Harry C Ice-maker
US4485831A (en) * 1982-09-02 1984-12-04 D.O.C.E Corporation Cooking oil salvage system
US4543058A (en) * 1983-02-28 1985-09-24 Allied Corporation Method of using a high-pressure vessel furnace
US5967226A (en) * 1996-11-29 1999-10-19 Lg Industrial Systems, Co., Ltd. Slush machine
US20060289145A1 (en) * 2001-05-22 2006-12-28 Jones James L Tube type heat exchanger with motor or generator housing
CN100371669C (zh) * 2005-03-07 2008-02-27 奇迪电器集团有限公司 卧式直饮机
WO2008065175A1 (de) * 2006-11-29 2008-06-05 Josef Höller Gmbh Kühl- und wärmeplatte, insbesondere für die präsentation von speisen und getränken
US20160273843A1 (en) * 2015-03-17 2016-09-22 Hatco Corporation Hot and cold shelf assembly with replaceable heating elements
US10288361B2 (en) * 2015-03-17 2019-05-14 Hatco Corporation Hot and cold shelf assembly with replaceable heating elements
US12089612B2 (en) 2021-09-30 2024-09-17 Bunn-O-Matic Corporation Heating system for cold drink apparatus and methods of use

Also Published As

Publication number Publication date
JPS4770U (OSRAM) 1972-02-23
JPS503310Y2 (OSRAM) 1975-01-28

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Legal Events

Date Code Title Description
AS Assignment

Owner name: HS DEECO, INC., A CORP. OF DE, STATELESS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FASCO INDUSTRIES, INC., A CORP. OF NY;REEL/FRAME:004094/0499

Effective date: 19820830

Owner name: HS DEECO, INC., A CORP. OF DE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:FASCO INDUSTRIES, INC., A CORP. OF NY;REEL/FRAME:004094/0499

Effective date: 19820830

Owner name: FASCO INDUSTRIES, INC., 601 N. FEDERAL HWY., BOCA

Free format text: CHANGE OF NAME;ASSIGNOR:HS DEECO INC.;REEL/FRAME:004094/0501

Effective date: 19820802