WO2005018309A1 - Verfahren zur bereitstellung von daten für ein steuerungssystem für eine milchkühlanordnung eines melksystems sowie verfahren zur kühlung von milch in einer milchkühlanordnung und steuerungssystem für eine milchkühlanordnung - Google Patents
Verfahren zur bereitstellung von daten für ein steuerungssystem für eine milchkühlanordnung eines melksystems sowie verfahren zur kühlung von milch in einer milchkühlanordnung und steuerungssystem für eine milchkühlanordnung Download PDFInfo
- Publication number
- WO2005018309A1 WO2005018309A1 PCT/EP2004/009086 EP2004009086W WO2005018309A1 WO 2005018309 A1 WO2005018309 A1 WO 2005018309A1 EP 2004009086 W EP2004009086 W EP 2004009086W WO 2005018309 A1 WO2005018309 A1 WO 2005018309A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- milk
- cooling
- milking
- control system
- milked
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01J—MANUFACTURE OF DAIRY PRODUCTS
- A01J9/00—Milk receptacles
- A01J9/04—Milk receptacles with cooling arrangements
Definitions
- the subject matter of the invention relates to a method for providing data for a control system of a milk cooling arrangement with at least one cooling tank of a milking system, a method for cooling milk in a milk cooling arrangement and a control system of a milk cooling arrangement with at least one cooling tank.
- the invention can be used in conventional milking systems, in semi-automatic and fully automatic milking systems and in robot-assisted milking systems.
- the invention can be used not only in milking systems for milking cows, but also in milking systems for milking sheep, goats, horses, camels, buffaloes, yaks, moose and other milk-producing animals.
- the milk milked by the animals is collected in a cooling tank and stored until the contents of the tank are removed and sent for further processing.
- the milk is cooled to 4 ° C as quickly as possible, but within a maximum of three hours. If the temperature is too low, it can lead to signs of breakdown in the milk.
- the fat particles are damaged, the proportion of free fatty acids in the milk increases, resulting in an aqueous milk. At a too high Temperature there is a risk of nucleation, so that the milk collected is no longer suitable for human consumption.
- the temperature inside the cooling tank can rise above the temperature specification for storing the milk. This occurs particularly when there is little milk in the cooling tank or when the cooling tank was previously empty.
- different requirements are placed on the cooling tank and the associated cooling devices.
- large quantities of milk are produced twice a day during the milking period.
- automatic milking systems especially with robot-assisted milking systems in which the animals have free access to the milking system, the milked milk is produced almost continuously. This results in the need to start cooling even with small amounts of milk.
- the cooling tank can be provided with an agitator.
- a buffer tank is placed in front of the cooling tank, into which the milked milk gets.
- a milk cooling arrangement with at least one cooling tank of a milking system is known.
- the cooling tank has a wall in which a cooling floor is arranged. The cooling takes place with direct evaporation of a refrigerant circulating in one or more evaporator cooling bottoms of the tank wall with connection to a refrigerating machine, the refrigerant expanded in the refrigerating machine evaporating therein while cooling the milk present via the evaporator cooling bottoms.
- the chiller is switched on and off with a thermostat with a temperature sensor, which is located on the evaporator cooling floor at the lowest possible point in the cooling tank and measures the surface temperature there and / or the mixing temperature that occurs.
- a thermostat with a temperature sensor, which is located on the evaporator cooling floor at the lowest possible point in the cooling tank and measures the surface temperature there and / or the mixing temperature that occurs.
- evaporator base segments are arranged next to one another as the evaporator cooling base. These evaporator base segments can be switched on and off individually. They have individual cooling circuits.
- Devices for controlling the temperature of the evaporator base segment or segments are provided which, depending on the surface temperature of the evaporator base segments and the vaporization temperature and / or the partial pressure of the refrigerant in the evaporator base segments, restrict and / or switch motor compressors on and off of the chillers.
- thermostat is arranged on the evaporator cooling floor at the lowest possible point in the cooling tank, there is a risk that the length of time between the time when milk reaches a partially filled cooling tank and the activation of the refrigeration machine is so long that milk quality may be impaired during this time.
- the present invention is based on the objective of a method for providing data for a control system Indicate Nursingkuhlan abdomen with at least "a cooling tank of a milking system, through which the responsiveness of the Nursingkuhlan ever is improved to changing milk flows.
- the method according to the invention for providing data for a control system of a mill cooling arrangement with at least one cooling tank of a milking system is characterized in that at least cooling tank-related data and at least some milk-related data are determined and these are made available to the control system.
- the control system of a milk cooling arrangement can generate specifications for the control of the milk cooling arrangement, in particular of the cooling tank. These specifications enable the arrangement and preferably the cooling tank to be controlled at a very early point in time, since it is no longer absolutely necessary to detect the newly flowing milk by sensors in the cooling tank.
- the provision of data for a control system creates the possibility that the control system reacts in advance on the basis of the data made available, ie before possible sensors in the cooling tank indicate faults or rising temperatures. These measures not only improve control, but also improve the quality of the cooling, which has a positive effect on the storage of the milk.
- the milk-specific data contain information about milk quantity milked, temperature, flow rate and / or the specific heat capacity of the milk.
- This information is often already available at the milking parlor. With the help of this information, it is possible, for example, to prepare the cooling tank for the milk that is about to arrive or the amount of heat associated with it. This means that the capacity of the milk cooling arrangement, in particular of the cooling tank, can be adapted to the current cooling capacity requirement.
- the coordination also includes the control of the cooling and mixing processes associated with cooling the milk.
- the control system of a milk cooling arrangement is no longer exclusively dependent on the sensors inside the cooling tank, but that it has information about the amount of milk and its temperature and information about the amount of heat expected in the future, it can prepare for cooling the incoming amount of milk before the sensors inside the cooling tank exceed the required threshold values. Since the cooling tank is usually located further away from the milking stations and a certain time passes until the milk arrives from the milking station in the cooling tank, this time can be used according to the method according to the invention to prepare the milk cooling arrangement for the task ahead. If the milk cooling arrangement has a cooling device which contains at least one refrigerant store, then the refrigerant store can be largely completely filled with a larger amount of milk or heat to be expected.
- the control system takes into account not only milk-specific data, but also cooling tank-related data.
- This data contains information about the amount of milk in the cooling tank, the capacity of the cooling tank, the remaining capacity of the cooling tank, the temperature, cooling capacity and / or condition of a cooling device. This information enters the control system as parameters which are processed as signals by the control system.
- the amount of milk produced during a milking process is individual for each animal. It also changes with the animal's lactation level. In the initial phase of lactation, the amount of milk that an animal gives off is greater than at the end of lactation of the animal. It is therefore advantageous if the control system is also provided with animal-specific data. In this way, an adaptation of the milk cooling arrangement to the upcoming task can be postponed to a point in time that is very early, i.e. possibly even before the start of a milking process.
- the amount of milk to be expected can be determined on the basis of historical data about the animal. This can then be transmitted to the control system as a predicted value. If necessary, this predicted value can be subjected to a safety factor that takes into account an uncertainty about the milk quantity dispensed by the animal in question, so that a cooling capacity that is not too high is provided. Since the cooling with one Energy consumption is connected, this energy consumption is cost-determining for the operation of the milk cooling arrangement. This has an effect in particular when the cooling pumps and compressors of a milk cooling arrangement run in the optimal range. In addition to the provision of animal-specific data, it is advantageous if the control system is provided with group and herd-specific data, statistical data and / or milking parlor management data.
- a temporal distribution of the expected milk quantities can be determined from the group and herd-specific data.
- This data contains information about the frequency with which the individual animals visit the milking system and the time interval between two milking processes. From this it can be determined when, for example, a plurality of animals visit the milking system and what amount of milk is likely to be produced.
- Preparatory measures can be carried out on the milk cooler arrangement in advance of the expected milking processes. Here it can. is, for example, the preparation of another cooling tank if it is determined that the amount of milk to be expected is greater than the remaining capacity of another cooling tank.
- the control system can also coordinate the milk flows from the milking stations to the cooling tanks.
- the provision of the cooling tank-related data which is, for example, the current tank capacity, which can also be calculated from the capacity of the cooling tank and the current filling quantity, is helpful for this purpose.
- the internal state variables of the cooling tanks such as fill level, remaining capacity, temperature, cooling capacity, state of the cooling units, etc.
- a - Milking parlor control the loading of the cooling tanks with the milked amount of milk can be coordinated and optimized.
- the present invention is based on the objective of proposing methods for cooling milk in a milk cooling arrangement which enables effective cooling.
- energy savings are sought.
- This object is achieved according to the invention by a method for cooling milk in a milk cooling arrangement with at least one cooling tank and at least one cooling device of a milking system with the features of claim 5.
- Advantageous further developments and refinements of the method are the subject of the dependent claims.
- a determination of a quantity of milk milked at at least one milking parlor and a temperature of the quantity of milk milked, which is at least partially conducted into at least one cooling tank, is determined.
- the amount of milk and the temperature of the amount of milk in the cooling tank into which the milked amount is fed is determined.
- at least one parameter is determined. It is checked whether the parameter lies within a tolerance range, in particular the parameter is compared with a predefined threshold value.
- the kitchen device is activated when the at least one parameter lies outside a tolerance range, in particular when the parameter exceeds a predetermined threshold value.
- This procedure according to the invention ensures that, for example, a cooling device of a milk cooling arrangement is activated at a very early point in time when the at least one parameter lies outside a tolerance range. If this is not the case, the milked amount of milk can get into the cooling tank without the cooling device being activated. Such a situation exists, for example, when the amount of milk or the amount of heat that would have to be extracted from the milk is very small compared to the amount of milk in the cooling tank. If necessary, an agitator can be switched on, which leads to an equalization of the milk temperature in the tank.
- the method according to the invention also offers the advantage that cooling capacity is only used when it is actually required. From an energetic point of view, this procedure has numerous advantages, in particular the energy consumption required to operate the milk cooling arrangement can be minimized.
- the heat quantity of the milked milk quantity be determined as at least one parameter. This is the amount of heat that is to be extracted from the milked milk up to the temperature in the cooling tank.
- the parameter can be used to determine how the milk cooling arrangement is to be controlled so that the excess amount of heat is transferred to the refrigerated goods, i.e. the milked amount of milk, must be withdrawn.
- the opening time of an expansion valve for a refrigerant can be determined, for example.
- a theoretical mixture temperature in the cooling tank can be determined as a parameter become. This theoretical mixing temperature can approximate according to the following relationship
- T - *> ⁇ i ⁇ ⁇ c ⁇ + m m c M ) (T ⁇ -T 0 ) + m M -c M (T M -T 0 ) m r c ⁇ + m MT ⁇ c M + m M • c M can be determined, whereby
- T m the mixing temperature
- T 0 the reference temperature
- mj the mass of the tank
- CT the specific heat capacity of the tank
- niMT the mass of milk in the tank
- T T the temperature of the tank and milk
- ⁇ UM the mass of milked
- CM the specific Heat capacity of milk
- TM the temperature of milked milk
- the cooling device is activated. It can also be seen from the relationship that, with a small mass of the milked amount of milk, the theoretical mixing temperature has only a slight increase, so that it is not absolutely necessary to activate a cooling device if only small amounts of milk are to be expected.
- the temperature of the milked amount of milk can be estimated and / or measured. An estimate of the temperature is particularly advantageous if the method according to the invention is used in milking systems which do not contain any temperature sensors for the milk quantities. However, it is preferred to determine the temperature of the amount of milk by measurement. In particular, the temperature of the milked amount of milk is determined at the milking stall, at the milk collecting vessel, after the plate cooler and / or at the entry into the cooling tank. Since the milk travels a certain distance in the piping system from the milking stall to the cooling tank, the milk can cool down if necessary.
- the extent of the cooling can be estimated so that the temperature of the milked amount at the milking stall is measured while the temperature at the entrance to the cooling tank is estimated.
- Information for the control system of a milk cooling arrangement can be provided from the temperature to be expected at the entry into the cooling tank. If the milk is cooled, the cooling output would be too high, taking into account the measured temperature at the milking stall.
- the cooling capacity can be adapted to the estimated temperature value at the entry into the cooling tank. This is not only the case if the milk cools down during the flow, but also if the milk would heat up on the way from the milking station to the cooling tank. In such a case, the cooling capacity would then have to be higher than the temperature determined at the milking parlor.
- the cooling capacity also necessary for cooling the milk depends essentially on the milked amount of milk. It is also necessary to provide sufficient cooling capacity even with a maximum amount of milk. It is therefore suggested that the milked amount is forecast according to animal-specific or group-related or herd-related data. With this measure, the necessary cooling capacity depending on the forecast amount of milk can be provided in advance of the milking processes. The seasonal or lactation-related factors influencing the forecast amount of milk from animal-specific data can also be taken into account. Such a procedure is particularly suitable for milking systems in which animals are fed to the milking system at certain times. The milked amount can not only be predicted from animal-specific data, but can also be determined directly or indirectly. This increases the accuracy.
- the milk volume can be determined by measuring the milk volume or from data from a milk pump.
- the amount of milk can be the amount of milk that was milked at the individual milking places, it is also possible to combine several milking places into groups and to determine the milked amount of the group.
- a first approximate value for the parameter be determined from animal-specific data and the cooling device is activated when the
- Approximate value lies outside a tolerance field, in particular exceeds a predetermined threshold value. This measure ensures that the cooling device is activated early enough to adequately store the expected amount of milk in the cooling tank.
- the approximate value can be tracked, this means that this approximate value is also below
- the actual conditions is corrected.
- This is particularly advantageous if the milking time of the animals is very different.
- an animal can be in a milking parlor are milked while milking has not yet started at another milking station, the milking process at the first milking station and the milking process at the second milking station overlapping in time, so that, under certain circumstances, an increased amount of milk can be expected.
- the cooling capacity be increased but also reduced, since, for example, the milking process has already been completed at the first milking station, while the milking process is nearing its end at the second milking station.
- the point in time or the points in time at which the milked quantity reaches the cooling tank is or are determined.
- the flow velocity of the milk is determined at at least one relevant point in the milking system.
- the milking system has several milking places, it is proposed that at least some milking places, preferably all milking places, at least determine the milk quantities milked at the milking places concerned. This can be an actual milk quantity determination. As an alternative or in addition, theoretical milk quantity determinations can also be carried out, based on the animal-specific data.
- the cooling device is preferably activated when at least one parameter lies outside a tolerance range, in particular exceeds a predetermined threshold value.
- the parameter can be a system parameter, which is composed of a plurality of parameters, wherein individual parameters can be assigned to individual milking stations.
- the milking station-specific parameters can be determined at the milking station itself.
- the parameters can also be determined centrally, preferably in a herd management system. Both milking-specific parameters and a system parameter can be determined.
- cooling tanks are provided. Individual places or all of them can be connected to a cooling tank.
- An embodiment of a milking system is preferred, in which the milking stations can optionally be connected to or separated from the cooling tanks.
- the milk quantity can be the milk quantity of individual milking places.
- groups of milking stations can be connected to or separated from the individual cooling tanks.
- the present invention is also based on the objective of specifying a control system for a milk cooling arrangement which can be implemented using simple means.
- Control system of a milk cooling arrangement with at least one cooling tank and at least one cooling device has a signal evaluation device, to which signals are provided which correspond to milk cooling arrangement-related and milk-specific data from at least some milking stations.
- An actuator interacts with the signal evaluation device and the milk cooling arrangement and actuates the milk cooling arrangement, in particular a cooling device, as a function of the signals supplied by the signal evaluation device and the actuator.
- at least one milking parlor has a milking parlor control that is a component of the control system. This configuration of the control system enables the milking parlor control to coordinate the control specifications of the milk cooling arrangement.
- the milking parlors have milking parlor controls with comfortable displays and setting options. These can also be used to control the milk cooling arrangement.
- the display can be used to display the parameters of the milk cooling arrangement or the status of the milk cooling arrangement. This results in increased comfort for the operator. Furthermore, this measure creates the possibility for the operating personnel to be able to react more quickly to possible irregularities during a milking process, since in most cases these are located at the milking stall.
- the display and storage of the state of the milk cooler arrangement can also take place at Mell ⁇ latz, so that the operator has current data about the state of the milk cooler arrangement on site.
- the signal evaluation device is formed by a central data processing system. It can be part of a plant management system, in particular the herd management system. The herd management system can transmit data, in particular animal-specific data, to the signal evaluation device.
- the performance of the milk cooling arrangement can be improved. Shorter cooling times and improved use of resources within the cooling device can thus be achieved.
- the setting of parameters and the recording of states of the milk cooling arrangement can be carried out comfortably.
- the essential control and control information of the dairy farm can be called up on the central computer.
- the embodiment shown in the figure shows schematically the interaction of several components of a milking system.
- the milking system has a milking parlor control 1 which is connected to milking parlor control devices 2.
- the milking parlor control devices communicate with the milking parlor control 1.
- the milking parlor control 1 also controls milk pumps 3.
- the milking parlor control 1 can be a control that controls a single milking station. Several milking parlor controls 1 can also be provided, which control individual milking parlors, which are not shown. There is also the possibility that a milking parlor control is provided for several milking parlors. In addition to these basic variants, milking systems can also be designed that contain mixed forms of milking parlor controls.
- the milking parlor control unit 1 transmits milk-specific data to the milking parlor control unit 1, which controls sensors (not shown). These data contain information about the milked amount of milk, the temperature of the milk and preferably the specific heat capacity of the milk.
- the milk pump controller 3 can provide the milking parlor controller 1 with data relating to the amount of milk milked.
- the milking parlor control 1 can furthermore contain information about the animal currently at the milking stall. Within the milking parlor control it is possible to provide information continuously but also when threshold values are exceeded. These threshold values can be determined with knowledge of the internal state variables and settings of the control system of a milk cooling arrangement.
- the milking parlor control can be a branched system, so that individual milking parlor controls or milking control devices are connected to the control system of a milk cooling arrangement.
- central process control for example within a herd management program. This herd management program delivers the necessary signals and data to the control system of a milk cooling arrangement.
- the milking parlor control 1 can obtain the relevant information about the milked amount of milk from the activity of the breast pump. This information is provided by the breast pump control 3.
- the estimated time for the arrival of the milked milk in the cooling tank can be derived from the activity of the breast pump and the sensors connected to it.
- the milking parlor control 1 can provide the coordination of the control specifications and the milk flows. For this purpose, it is helpful to transmit the current tank capacity, for example, which can also be calculated from the capacity of the cooling tank and the current filling quantity. With the help of these internal state variables such as level, remaining capacity, temperature, cooling capacity, state of the cooling units, etc., the milking parlor control can coordinate and optimize the loading of the cooling tank with the milk that is currently milked.
- the milk cooling arrangement 4 is connected to the milking parlor control 1.
- the milk cooling arrangement 4 comprises a tank controller 5, a cooling tank 6, cooling devices 7 and tank serisors 8.
- the tank sensors 8 provide information about the current state of the cooling tank 6.
- the cooling units 7 are connected to the tank controller 8 or to the milking parlor controller 1 in such a way that the information technology Milking parlor control and / or the tank control controls the cooling units 7 according to the requirements.
- the milking parlor control provides information about the temperature and the milk volume. From these quantities, as well as from the knowledge of the specific heat capacity of the milked amount and the known state variables within the cooling tank, the amount of heat that must be extracted from the milked amount can be calculated, i.e. the cooling capacity that is necessary so that the temperature in the cooling tank within the certain Tolerance field lies.
- the temperature in the cooling tank is preferably 4 ° C.
- the tank control and the cooling units 7 can be activated accordingly, taking into account the known cooling capacity.
- T m the mixing temperature
- mx the mass of the tank
- ni M x the mass of milk in the tank
- T the temperature of the tank and milk mM the mass of milked milk
- CM the specific Heat capacity of the milk and TM are the temperature of the milked milk.
- the milking parlor control can have displays and setting means which belong to the control. By transferring the set parameters, parameters can be transmitted to the tank controller. This is generally more convenient to carry out than the control itself, since the operator is predominantly in the area of the milking parlor control or when operating the herd management.
- the state variables of the milk cooling system can also be displayed and queried on the milking parlor control. By coordinating the milking parlor control and tank control, shorter cooling times and an improved utilization of the resources within the milk cooling arrangement are used.
- the setting of parameters and the recording of states of the milk cooling arrangement are also more convenient to implement. In addition, a faster adaptation to the changing conditions within a milking system can also be achieved.
- the invention also offers the possibility of retrofitting existing milking systems without a significantly high outlay being necessary for this.
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- Life Sciences & Earth Sciences (AREA)
- Animal Husbandry (AREA)
- Environmental Sciences (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/568,060 US20070272158A1 (en) | 2003-08-13 | 2004-08-13 | Method for Providing Data for a Control System for a Milk Cooling Arrangement of a Milking System, and Method For Cooling Milk In a Milk Cooling Arrangement and Control System for a Milk Cooling Arrangement |
EP04764083A EP1653797A1 (de) | 2003-08-13 | 2004-08-13 | Verfahren zur bereitstellung von daten für ein steuerungssystem für eine milchkühlanordnung eines melksystems sowie verfahren zur kühlung von milch in einer milchkühlanordnung und steuerungssystem für eine milchkühlanordnung |
CA002534951A CA2534951A1 (en) | 2003-08-13 | 2004-08-13 | Method for providing data for a control system for a milk cooling arrangement of a milking system, and method for cooling milk in a milk coolingarrangement and control system for a milk cooling arrangement |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10337264.4 | 2003-08-13 | ||
DE10337264A DE10337264A1 (de) | 2003-08-13 | 2003-08-13 | Verfahren zur Bereitstellung von Daten für ein Steuerungssystem für eine Milchkühlanordnung eines Melksystems sowie Verfahren zur Kühlung von Milch in einer Milchkühlanordnung und Steuerungssystem für eine Milchkühlanordnung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005018309A1 true WO2005018309A1 (de) | 2005-03-03 |
Family
ID=34177524
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/009086 WO2005018309A1 (de) | 2003-08-13 | 2004-08-13 | Verfahren zur bereitstellung von daten für ein steuerungssystem für eine milchkühlanordnung eines melksystems sowie verfahren zur kühlung von milch in einer milchkühlanordnung und steuerungssystem für eine milchkühlanordnung |
Country Status (5)
Country | Link |
---|---|
US (1) | US20070272158A1 (de) |
EP (1) | EP1653797A1 (de) |
CA (1) | CA2534951A1 (de) |
DE (1) | DE10337264A1 (de) |
WO (1) | WO2005018309A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11229186B2 (en) * | 2016-12-16 | 2022-01-25 | Delaval Holding Ab | Method and apparatus for cooling of milk |
EP4336998A1 (de) * | 2021-05-11 | 2024-03-20 | DeLaval Holding AB | Steuereinheit, computerimplementiertes verfahren zur steuerung eines milchstroms, computerprogramm und nichtflüchtiger datenträger |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0122900A2 (de) * | 1983-04-18 | 1984-10-24 | Wedholms AB | Vorrichtung zur Kühlung und Lagerung von Waren |
US5769025A (en) * | 1993-01-26 | 1998-06-23 | Maasland, N.V. | Milking apparatus |
WO2002074069A1 (en) * | 2001-03-20 | 2002-09-26 | Delaval Holding Ab | Cooling of milk in an automatic milking system |
US20030131619A1 (en) * | 2000-02-04 | 2003-07-17 | Magnus Lidman | Method and system for controlled cooling of small milk quantities |
-
2003
- 2003-08-13 DE DE10337264A patent/DE10337264A1/de not_active Withdrawn
-
2004
- 2004-08-13 CA CA002534951A patent/CA2534951A1/en not_active Abandoned
- 2004-08-13 US US10/568,060 patent/US20070272158A1/en not_active Abandoned
- 2004-08-13 WO PCT/EP2004/009086 patent/WO2005018309A1/de active Application Filing
- 2004-08-13 EP EP04764083A patent/EP1653797A1/de not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0122900A2 (de) * | 1983-04-18 | 1984-10-24 | Wedholms AB | Vorrichtung zur Kühlung und Lagerung von Waren |
US5769025A (en) * | 1993-01-26 | 1998-06-23 | Maasland, N.V. | Milking apparatus |
US20030131619A1 (en) * | 2000-02-04 | 2003-07-17 | Magnus Lidman | Method and system for controlled cooling of small milk quantities |
WO2002074069A1 (en) * | 2001-03-20 | 2002-09-26 | Delaval Holding Ab | Cooling of milk in an automatic milking system |
Also Published As
Publication number | Publication date |
---|---|
DE10337264A1 (de) | 2005-03-10 |
CA2534951A1 (en) | 2005-03-03 |
US20070272158A1 (en) | 2007-11-29 |
EP1653797A1 (de) | 2006-05-10 |
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