EP0151496A2 - Kühlverfahren für eine Verkaufsanlage für gekühlte Waren - Google Patents

Kühlverfahren für eine Verkaufsanlage für gekühlte Waren Download PDF

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Publication number
EP0151496A2
EP0151496A2 EP85101434A EP85101434A EP0151496A2 EP 0151496 A2 EP0151496 A2 EP 0151496A2 EP 85101434 A EP85101434 A EP 85101434A EP 85101434 A EP85101434 A EP 85101434A EP 0151496 A2 EP0151496 A2 EP 0151496A2
Authority
EP
European Patent Office
Prior art keywords
timer
compressor
evaporator
fans
vending machine
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.)
Granted
Application number
EP85101434A
Other languages
English (en)
French (fr)
Other versions
EP0151496B1 (de
EP0151496A3 (en
Inventor
Annis Ray Morgan, Jr.
Eddie Wayne King
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.)
Coca Cola Co
Original Assignee
Coca Cola Co
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 Coca Cola Co filed Critical Coca Cola Co
Publication of EP0151496A2 publication Critical patent/EP0151496A2/de
Publication of EP0151496A3 publication Critical patent/EP0151496A3/en
Application granted granted Critical
Publication of EP0151496B1 publication Critical patent/EP0151496B1/de
Expired legal-status Critical Current

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Classifications

    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • 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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F9/00—Details other than those peculiar to special kinds or types of apparatus
    • G07F9/10—Casings or parts thereof, e.g. with means for heating or cooling
    • G07F9/105—Heating or cooling means, for temperature and humidity control, for the conditioning of articles and their storage
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/23—Time delays
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/36—Visual displays
    • 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
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature

Definitions

  • the present invention relates to an energy conservation system for chilled-product vending machines. More specifically, the present invention relates to a control circuit for a convection type refrigeration system for a vending machine which dispenses chilled products such as beverage cans or bottles.
  • a control circuit including at least three (3) timers for cycling the evaporator fans on and off independently of the operation of the compressor of the refrigeration system.
  • the evaporator fan is cycled on with the compressor and continues to run during the entire compressor on cycle as is conventional, but by means of a first timer the evaporator fan is permitted to run for an additional delay period following the cycle OFF of the compressor. During this additional delay period of the evaporator fans, the fans continue to blow air over the evaporator coil until the temperature of the evaporator coil is sufficiently above the freezing point of water (32°T, 0°C), and are then cycled off.
  • this cycle off of the evaporator fan may be anywhere from two (2) to five (5) minutes after the compressor has cut off, which enables the temperature of the evaporator coil to reach stabilization above 32°F.
  • a second cycling timer is provided to intermittently cycle the evaporator fans on and off for predetermined short intervals following the above described delay period, and during the time when the compressor is off.
  • This intermittent cycling of the evaporator fans on and off forces air through the product stacks of the vending machine to provide a relatively even distribution of temperature throughout the off period of the compressor to allow for proper and precise heat sensing of the product through the vendor thermostats.
  • This intermittent actuation of the fans and flow of air also limits the fluctuation of drink temperature, maintaining them within acceptable tolerances.
  • a third timer is provided to preclude freezing of the vended products and/or the evaporator coil when a vending machine is disposed in a below freezing environment.
  • This timer is enabled when the thermostatic temperature switch which controls the compressor opens, and will time out to cycle on the evaporator fans for continuous operation for a predetermined period of time if the temperature switch remains open in excess of a predetermined period of time, for example four (4) hours. That is, by sensing the compressor off period, (the period that the temperature switch is open), the evaporator fans are cycled on for a continuous period of operation to preclude freeze up of the products when the off period of the compressor (the temperature switch open) exceeds a predetermined limit such as four (4) hours.
  • An additional optional timer may be provided in combination with the other timers of the present invention for turning the refrigeration system on at a predetermined time in the morning and disabling the system at a predetermined time in the evening.
  • This optional timer obviously would further assist in the energy conservation objectives of the present invention by shutting down all power consumption during the period that the vending machine is not in use.
  • the timers utilized in the control circuit of the present invention are electromechanical cam timers which are commercially available components and are hardwired in circuit with the power source and other components of the refrigeration system in a manner to be described hereinafter.
  • the timing functions of the present invention could be performed by a general purpose digital computer or by microprocessor technology programmed to perform the desired functions.
  • the vending machine thereof also includes a convection refrigeration system which includes the conventional components of a refrigeration compressor , having a fan CF and a pump CP, an evaporator coil EC, an evaporator fan motor EFM, and a thermostatic temperature switch TS (not shown), for controlling the operation of the refrigeration system in response to the temperatures sensed within the vending machine.
  • a convection refrigeration system which includes the conventional components of a refrigeration compressor , having a fan CF and a pump CP, an evaporator coil EC, an evaporator fan motor EFM, and a thermostatic temperature switch TS (not shown), for controlling the operation of the refrigeration system in response to the temperatures sensed within the vending machine.
  • the conventional convection refrigeration system illustrated in Figure 1 operates to chill the products in product stacks PS, by blowing air by means of evaporator fan motor EFM over evaporator coil EC to thereby circulate chilled air between and throughout the product stacks PS.Air returns from the stacks as indicated by arrows AR.
  • the compressor C is cycled on and off under control of thermostatic temperature switch TS, while the evaporator fan motor EFM runs continuously, even during the periods that compressor C is de-energized. This continuous running of the evaporator fan motor EFM obviously expends alot of unnecessary electrical energy and generates heat leading to unnecessary energy waste.
  • the control circuit of Figure 2 was designed to energize the evaporator fan motor EFM only during optimum times when its operation is clearly needed.
  • the evaporator fan EFM operates continuously during the.period that the compressor C is operating, operates for a predetermined delay period.following the cycle OFF of the compressor in order to preclude freeze up of the evaporator coil EC, operates intermittently for predetermined periods when the compressor C is cycled OFF, and it is cycled ON to run continuously for a period following an interval when the compressor has not operated for an extended period of time, to preclude freezing of the products in the vending machine in sub-freezing environmental locations.
  • FIG. 2 there is illustrated an electrical circuit diagram of the control circuitry of the present invention for operating the convection refrigeration system illustrated in Figure 1.
  • a pair of main power lines PL1, PL2 are provided across which a conventional 120 volt, 60HZ power source is connected.
  • Also connected in parallel between power lines PL1, PL2 are a plurality of timers E, fp, D, Cy. Because these respective timers are connected in parallel, they are effectively hardwired in OR logic with respect to evaporator fan motors EFM.
  • each of the respective timers E, fp, D and Cy can effect a time control function over evaporator fan motors EFM to be described in more detail hereinafter.
  • the first timer E may be a 24 hour clock controller for cycling the refrigeration system ON and OFF at predetermined times of day. That is, by means of timer E, the refrigeration system can be enabled or disabled for any specified period on a daily basis.
  • Timer E is coupled to power line PL1 through a temperature switch TS at terminal C thereof. Included within timer E is time control switch S1 between terminals C and NC and a timer motor TM1 between terminals L1 and L2.
  • Terminal NC is also coupled to the compressor and the condensor fan motors of the refrigeration system of Figure 1 and terminals Ll and L2 are coupled to power lines PL1 and PL2, respectively.
  • Timer E in one embodiment is a multi-pulse can timer manufactured by Eagle Signal Corporation, and identified as "multi-pulse timer catalog number MP-1-A6-32-MP5-48".
  • Timer fp is provided in the control circuit of Figure 2 to energize evaporator fans EFM continuously when the compressor C of the refrigeration system has not operated for an extended period of time, for example four (4) hours or more.
  • the failure of the compressor C to operate for such an extended period of time would normally occur when the vending machine is placed in a sub-freezing environment which eliminates the need for internal-cooling of the machine.
  • this sub-freezing environment also may create a problem in that the chilled products may freeze up when the machine is placed in extremely cold external environment conditions.
  • the timer fp is utilized to sense these extended periods in which-the compressor C does not run and turn ON the evaporator fans EFM to run continuously and thereby blow air over the products to preclude freeze up thereof.
  • Timer fp includes external terminals 1, 2, 3, 4, and 11.
  • Terminal 1 of timer fp is connec- tcd to terminal c of timer E.
  • Terminal 2 of timer fp is externally connected to power line PL2.
  • Terminal 3 of timer fp is connected to the terminal 5 of timer D and through junction FJ to fans EFM.
  • Terminal 4 of timer fp is hardwired to terminal 11 thereof which in turn is coupled to power line PL1.
  • Timer fp also includes a timer motor TM2 which is coupled at one end to a wire connecting terminals 1 and 2 thereof, and at an opposite end through a switch S2 to terminal 11.
  • a clutch coil Cl Also provided in the wire connection between terminals 1 and 2 of timer fp is a clutch coil Cl.
  • Timer fp may, for example, be an electromechanical cam timer manufactured by Eagle Signal Corporation under the description "Cycle-Flex timer catalogue number HB58-A6-01".
  • Timer D is provided to maintain evaporator fans EFM ON for a predetermined time or delay period after the compressor C is turned OFF. This delay period is necessary under some environmental conditions to preclude freeze up of the evaporator coil EC. That is, since evaporator fan motors EFM will continue to run at the end of a compressor cycle for a predetermined period of time, the temperature of the evaporator coil due to this moving air is elevated to a safe temprature above the freezing point of water before the evaporator fans EFM are turned OFF under the control of timer D.
  • Timer D includes a plurality of external terminals numbered 1, 2, 3, 4, 5, and 11, in the same manner as the like terminals of timer fp.
  • Timer D is in the preferred embodiment of the present invention, similar to timer fp with the exception of the specific function it performs, the addition of terminal 5, and the manner in which it is connected in the circuit of Figure 2.
  • Terminal 1 of timer D is connected to terminal NC of timer E.
  • Terminal 2 of timer D is connected to power line PL2.
  • Terminal 3 of timer D is connected to terminal L2 of timer Cy to be, described hereinafter.
  • Terminal 4 of timer D is hardwired to terminal 11 of timer D which is in turn, coupled to power line PL1.
  • Terminal 5 of timer D is as stated hereinbefore, connected directly to terminal 3 of timer fp and through junction FJ to fans EFM.
  • Timer D also includes a clutch coil C2 coupled between terminals 1 and 2 thereof, a timer motor TM3 connected between clutch coil C2 and terminal 2 at one end thereof, and an opposite end thereof coupled through a switch S4 to terminal 11.
  • a switch S5 is also provided in timer D for completing a circuit between terminals 3 and 4 or terminals 4 and 5 as controlled by timer motor TM3 in a manner to be described hereinafter.
  • a cycle timer Cy is provided to intermittently energize evaporator fans EFM during periods in which the compressor C is de-energized. This is desirable in order to provide a more even temperature distribution throughout the vending machine during the off period of the compressor in order to enable more accurate temperature sensing within the vending machine during that period and a more limited fluctuation of the temperature of the clrilled products in product stacks
  • PS- Timer Cy includes a plurality of external terminals L1, L2, 2 and 3.
  • Terminal LI of timer Cy is coupled to power line PL2.
  • Terminal L2 of timer Cy as stated hereinbefore, is coupled directly to terminal 3 of timer D.
  • Terminal 2 of timer Cy is hardwired to terminal L2 of timer Cy.
  • Terminal 3 of timer Cy is coupled through junction FJ to the evaporator fan motors of the refrigeration system of the present invention.
  • a timer motor TM4 is provided within timer Cy between terminals L1 and L2 for the timed operation of a switch S6,
  • Timer Cy in one embodiment of the present invention, is electromechanical cam timer manufactured by Eagle Signal Corporation under the description "flexopulse timer number HG-94-A6".
  • control circuit of Figure 2 can best be understood in conjunction with the timing diagrams of Figures 3 and 4 as described hereinafter.
  • waveform E represents the output at terminal NC of timer E.
  • Waveform TS represents the ON-OFF state of thermostatic temperature switch TS.
  • Waveform D represents the output at terminal 5 of timer D over the control period illustrated in Figure 3.
  • Waveform Cy represents the intermittent timing pulse output generated by timer Cy at output terminal 3 over the control period.
  • the remaining waveform of Figure 3 labeled FAN(S) illustrates the cycle of operation of the evaporator fan motors EFM in response to the timing controls provided by the waveforms E, TS, D, and CY.
  • Waveform TS represents the ON-OFF periods of temperature switch TS.
  • Waveform fp represents the output with respect to time at terminal 3 of timer fp and the waveform labeled FAN(S) illustrates the ON-OFF periods of the evaporator fans EFM in response to the combined control of temperature switch TS and timer fp.
  • the compressor C of the refrigeration system illustrated in Figure 1 is turned on in response to the closing of temperature switch TS when the temperature within the vending machine rises above a predetermined level.
  • temperature switch TS will not turn the compressor C on, unless switch S1 of timer E is closed providing a closed circuit path between power line PL1, the compressor and power line PL2.
  • the function of switch Sl will be explained further hereinafter.
  • the closing of temperature switch TS also provides a circuit path through clutch coil C1 of timer fp and power lines PL1 and PL2. That is, the closing of temperature switch TS energizes the clutch coil C1. With clutch coil Cl energized, timer motor TM2 of timer fp can not rotate.
  • Timer E is an optional 24 hour clock/controller which may be utilized to turn the refrigeration system of the present invention ON and OFF for any specified period daily.
  • the refrigeration system may be turned ON at 9:00 AM and OFF at 5:00 PM, by means of timer E.
  • This ON-OFF period is controlled by timer E by the opening and closing of switch S1 which is controlled by timer motor TM1 in conjunction with appropriate timing cams.
  • switch S1 may be locked in a closed position to effectively short terminals C and NC and open terminals Ll and L2, thus eliminating the function of timer E. In this position, with switch Sl continuously closed, the enablement o£ the refrigeration system and compressor C are under the control of temperature switch TS.
  • the delay timer D is provided with a clutch coil C2 which is energized when temperature switch TS is closed.
  • timer motor TM3 does not run.
  • clutch C2 becomes de-energized timer motor TM3 begins to run, and runs until it times out.
  • Switch S5 remains in the position shown between terminals 4 and 5 until timer motor TM3 is timed out, thus completing a circuit from power line PL1 through junction FJ, to evaporator fan motors EFM.
  • switch S5 is normally in the position shown connecting terminals 4 and 5 of timer D, and therefore, power is supplied to evaporator fan motors EFM from power line PL1 via terminals 4, 5 of timer ' D, and junction FJ.
  • Timer D determines how long power is to be applied to the evaporator fan motors following the cut-off time of the compressor determined by temperature switch TS. That is, as temperature switch TS opens, clutch coil C2 becomes de energized permitting timer TM3 to time out, at which time switch S5 switches from terminal 5 to terminal 3, thus interrupting the supply of power to evaporator fan motors EFM. With switch S5 coupling terminals 4 and 3 of timer D together, the cycle timer Cy is enabled.
  • the cycle timer Cy timer motor TM4 runs continuously following each delay period generated by timer D, until reset by the ending of another delay period.
  • the cycle timer alternately opens and closes the contacts between terminal 2 and 3 of timer Cy at a selectable rate to create the small pulse waveform illustrated as Cy in Figure 3.
  • the evaporator fans EFM intermittently cycle ON and OFF following each delay period controlled by timer D.
  • the evaporator fan motors EFM as illustrated in Figure 3 are turned ON for the entire period that the compressor is turned ON, remain ON for a delay period determined by timer D, and are intermittently turned ON following each delay period and during the period preceeding the next compressor ON time.
  • the compressor.ON and compressor OFF times are labeled C ON and C OFF , respectively in Figure 3.
  • timer fp which prevents freeze up of vended products in sub-freezing environments may now be understood with reference to Figure 4 and in conjunction with Figure 2.
  • the temperature switch TS is closed and opens to turn the compressor OFF at the time indicated C OFF in Figure 4, at which time power is removed from clutch coil Cl of timer fp
  • timer motor TM2 is permitted to rotate to begin its timing function. If the temperature switch TS remains open for a predetermined period, for example, four (4) continuous hours, timer fp will time out closing the contacts between terminals 3 and 4 thereof by switch S3.
  • the closure of switch S3 completes the circuit to the evaporaror fan motors EFM between power lines PL1 and FL2.
  • timer fp is automatically reset to its initial condition in readiness for subsequent actuation in response to a compressor OFF period_in excess of said predetermined period of four (4) hours. It should be understood that the period of four (4) hours is exemplary only, and that the predetermined time period selected will vary depending on the type of vending machine being controlled. Thus, by the continuous operation of the evaporator fan motors following a long compressor OFF period indicative of sub-freezing conditions in the environment, freeze up of

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
EP85101434A 1980-10-17 1981-10-16 Kühlverfahren für eine Verkaufsanlage für gekühlte Waren Expired EP0151496B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US19817280A 1980-10-17 1980-10-17
US198172 1980-10-17

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP81108419.3 Division 1981-10-16

Publications (3)

Publication Number Publication Date
EP0151496A2 true EP0151496A2 (de) 1985-08-14
EP0151496A3 EP0151496A3 (en) 1986-01-08
EP0151496B1 EP0151496B1 (de) 1988-01-07

Family

ID=22732288

Family Applications (2)

Application Number Title Priority Date Filing Date
EP81108419A Expired EP0050333B1 (de) 1980-10-17 1981-10-16 Kühlverfahren für eine Verkaufsanlage für gekühlte Waren
EP85101434A Expired EP0151496B1 (de) 1980-10-17 1981-10-16 Kühlverfahren für eine Verkaufsanlage für gekühlte Waren

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP81108419A Expired EP0050333B1 (de) 1980-10-17 1981-10-16 Kühlverfahren für eine Verkaufsanlage für gekühlte Waren

Country Status (10)

Country Link
EP (2) EP0050333B1 (de)
JP (1) JPS5770374A (de)
AU (1) AU528195B2 (de)
BR (1) BR8105359A (de)
CA (1) CA1169139A (de)
DE (1) DE3174915D1 (de)
ES (3) ES8302275A1 (de)
GR (1) GR75651B (de)
MX (1) MX150410A (de)
ZA (1) ZA815323B (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7018422B2 (en) * 2001-10-18 2006-03-28 Robb Richard Gardner Shrink resistant and wrinkle free textiles
US7144431B2 (en) * 2001-10-18 2006-12-05 The Procter & Gamble Company Textile finishing composition and methods for using same
WO2008120896A3 (en) * 2007-03-30 2009-02-19 Lg Electronics Inc Refrigerator and control method of the same
US7891200B2 (en) 2007-12-12 2011-02-22 Pepsico, Inc. Vending machine improvement
EP3217127A1 (de) * 2016-03-08 2017-09-13 LG Electronics Inc. Kühlschrank

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4417450A (en) * 1980-10-17 1983-11-29 The Coca-Cola Company Energy management system for vending machines
JPS6014479U (ja) * 1983-07-08 1985-01-31 三洋電機株式会社 低温庫の運転制御装置
RU2191956C2 (ru) * 1997-09-29 2002-10-27 Гурова Елена Владимировна Схема регулирования температурного режима в холодильнике (варианты)
US6389822B1 (en) * 1998-10-28 2002-05-21 Bayview Technology Group, Incorporated Refrigerated vending machine exploiting expanded temperature variance during power-conservation mode
DE10161306A1 (de) * 2001-12-13 2003-06-26 Bsh Bosch Siemens Hausgeraete Kältegerät mit regelbarer Entfeuchtung
US9218703B2 (en) * 2008-06-09 2015-12-22 The Coca-Cola Company Virtual vending machine in communication with a remote data processing device
US11708259B2 (en) 2018-08-24 2023-07-25 Bedford Systems Llc Alcohol concentrate filling systems and methods of use thereof
US11796241B2 (en) 2020-10-14 2023-10-24 Viking Range, Llc Method and apparatus for controlling humidity within a compartment of refrigeration appliance

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2529470A (en) * 1945-01-26 1950-11-07 Bastian Biessing Company Article refrigeration
US2962872A (en) * 1958-01-13 1960-12-06 Revco Inc Refrigerator construction and controls
GB1449823A (en) * 1972-11-13 1976-09-15 Hotpoint Ltd Refrigeration units
US4021213A (en) * 1975-08-25 1977-05-03 Mcgraw-Edison Company Food storage refrigeration cabinet having optional fast chill cycle
US4094166A (en) * 1977-03-23 1978-06-13 Electro-Thermal Corporation Air conditioning control system
US4136730A (en) * 1977-07-19 1979-01-30 Kinsey Bernard B Heating and cooling efficiency control
US4216658A (en) * 1978-05-11 1980-08-12 Baker Ralph N Iii Refrigeration means and methods

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7018422B2 (en) * 2001-10-18 2006-03-28 Robb Richard Gardner Shrink resistant and wrinkle free textiles
US7144431B2 (en) * 2001-10-18 2006-12-05 The Procter & Gamble Company Textile finishing composition and methods for using same
WO2008120896A3 (en) * 2007-03-30 2009-02-19 Lg Electronics Inc Refrigerator and control method of the same
US7891200B2 (en) 2007-12-12 2011-02-22 Pepsico, Inc. Vending machine improvement
CN101458843B (zh) * 2007-12-12 2012-02-22 百事可乐公司 自动售货机的改进
EP3217127A1 (de) * 2016-03-08 2017-09-13 LG Electronics Inc. Kühlschrank
US10718561B2 (en) 2016-03-08 2020-07-21 Lg Electronics Inc. Refrigerator and method for controlling temperature of a refrigerating chamber

Also Published As

Publication number Publication date
ES505417A0 (es) 1983-01-01
ES8308041A1 (es) 1983-08-01
AU7399181A (en) 1982-06-24
DE3174915D1 (en) 1986-08-14
EP0151496B1 (de) 1988-01-07
ZA815323B (en) 1982-07-28
ES8308042A1 (es) 1983-08-01
GR75651B (de) 1984-08-02
MX150410A (es) 1984-04-30
AU528195B2 (en) 1983-04-21
EP0050333A2 (de) 1982-04-28
ES8302275A1 (es) 1983-01-01
EP0050333A3 (en) 1982-07-21
ES515037A0 (es) 1983-08-01
EP0050333B1 (de) 1986-07-09
ES515038A0 (es) 1983-08-01
JPS5770374A (en) 1982-04-30
CA1169139A (en) 1984-06-12
BR8105359A (pt) 1982-08-31
JPS648266B2 (de) 1989-02-13
EP0151496A3 (en) 1986-01-08

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