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WO1993006438A1 - Dosage de liquides - Google Patents

Dosage de liquides Download PDF

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Publication number
WO1993006438A1
WO1993006438A1 PCT/IE1992/000010 IE9200010W WO9306438A1 WO 1993006438 A1 WO1993006438 A1 WO 1993006438A1 IE 9200010 W IE9200010 W IE 9200010W WO 9306438 A1 WO9306438 A1 WO 9306438A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
supply container
liquid supply
container
level
Prior art date
Application number
PCT/IE1992/000010
Other languages
English (en)
Inventor
Robert Henry Ardill
Oliver Ciaran Leamy
Original Assignee
Robert Henry Ardill
Oliver Ciaran Leamy
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 Robert Henry Ardill, Oliver Ciaran Leamy filed Critical Robert Henry Ardill
Publication of WO1993006438A1 publication Critical patent/WO1993006438A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/08—Arrangements of devices for controlling, indicating, metering or registering quantity or price of liquid transferred
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/007—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring the level variations of storage tanks relative to the time
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves
    • G01F23/2962—Measuring transit time of reflected waves

Definitions

  • This invention relates to a method and apparatus for liquid measuring, and in particular for accurately measuring a quantity of liquid transferred between two containers or tanks.
  • the invention particularly relates to the collection of milk by a milk tanker from milk suppliers.
  • the present invention is directed towards overcoming these problems.
  • a method for measuring a quantity of liquid transferred between two containers namely, a liquid supply container and a liquid receiver container, comprising the steps:-
  • the method includes the steps of:-
  • the method includes the step of taking a sample of the liquid transferred during transfer of the liquid between the containers, controlling sampling in response to the measured initial quantity of liquid in the liquid supply container to take a number of discrete samples during the transfer of liquid between the containers to provide an accurate composite sample of the liquid transferred.
  • the samples may be taken at discrete time intervals as based on volume or weight, depending on the type of sensing device used.
  • the method includes the steps of:-
  • a number of liquid receiver containers are provided, and the method includes calculating an ullage for each liquid receiver container and comparing the ullage with the initial quantity of liquid in the liquid supply container, and controlling the transfer of liquid between the liquid supply container and the liquid receiver containers to distribute the liquid between the liquid receiver containers without overflowing any of the liquid receiver containers.
  • the liquid receiver containers are compartments of a milk tanker, milk can be collected and directed into appropriate compartments without overflowing any compartment.
  • the level of liquid in the liquid supply container is calculated by sensing the pressure at a pressure sensor within the liquid supply container due to the height of liquid above the pressure sensor and converting this sensed pressure into an equivalent height of liquid in the liquid supply container for calculation of the quantity of liquid in the liquid supply container.
  • the method includes the step of using the density of a previously taken sample of the same de-aerated liquid as the value of the density of the liquid for calculating the quantity (weight) of de-aerated liquid in the supply container.
  • the level of liquid in the liquid supply container may be determined using an ultrasonic level measuring device.
  • the method includes the step of compensating the reading from the ultrasonic measuring device by a factor dependent on the density temperature of the medium through which the ultrasonic impulse passes, the reading being compensated by passing on ultrasonic impulse through a predetermined path in the medium and determining an adjustment factor by which the readings are compensated.
  • the predetermined path is defined by a reflector means.
  • the reflector means is provided on a rig on which the ultrasonic measuring device is mounted.
  • the rig is adapted to be mounted in an opening in a tank.
  • the reflector means is preferably mounted for movement between a calibration extended position to a measuring retracted position.
  • the invention provides an apparatus for measuring a quantity of liquid to be transferred between two containers, namely a liquid supply container and a liquid receiver container, the apparatus comprising means for measuring the level of liquid in the liquid supply container, and means for calculating an initial quantity of liquid in the liquid supply container as a function of the height of the liquid in the supply container, and means for recording the level and/or quantity of liquid.
  • the apparatus includes means for computing a quantity of liquid in the liquid supply container based on the measured height of liquid in the liquid supply container, and preferably means for transferring a quantity of liquid from the liquid supply container to the liquid receiver container and means for recording the quantity of liquid transferred between the liquid supply container and liquid receiver container.
  • the apparatus may further include an automatic sampling device operable to take a number of discrete samples of the liquid during transfer of the liquid between the containers, and control means for the sampler operable in response to the measured initial quantity of liquid in the liquid supply container to actuate the sampling device to collect the discrete samples throughout the liquid transfer to provide an accurate composite sample of the liquid transferred.
  • an automatic sampling device operable to take a number of discrete samples of the liquid during transfer of the liquid between the containers
  • control means for the sampler operable in response to the measured initial quantity of liquid in the liquid supply container to actuate the sampling device to collect the discrete samples throughout the liquid transfer to provide an accurate composite sample of the liquid transferred.
  • the apparatus includes means for determining the ullage in the liquid receiver container and means to control liquid transfer in response to the ullage and the sensed initial quantity of liquid in the liquid supply container to prevent overfilling of the liquid receiver container.
  • the means for measuring the level of liquid in the liquid supply container comprises a pressure measuring device which converts sensed pressure into an equivalent height of liquid in the liquid supply container for calculation of the quantity of liquid in the liquid supply container.
  • the density of a previously taken sample of the same de-aerated liquid is taken as the value of the density of the liquid for calculating the quantity of de- aerated liquid in the supply container.
  • the means for measuring the level of liquid in a liquid supply container comprises an ultrasonic level measuring device.
  • the apparatus includes means for compensating the level reading from the measuring device by a factor dependent on the density temperature of the medium through which the ultrasonic impulse passes to the level.
  • the compensating means comprises reflector means to define a predetermined path in the medium.
  • the reflector means is carried by a rig which is adapted for mounting to a container opening. The reflector means is preferably mounted for movement between a calibration extended position to a retracted measuring position.
  • Fig. 1 is a diagrammatic illustration of apparatus according to the invention for measuring the transfer of milk between a farm tank and a collection tank
  • Fig. 2 is a further diagrammatic illustration of the apparatus shown in Fig. 1,
  • Fig. 3 is a diagrammatic illustration of another arrangement of milk transfer apparatus for carrying out the method of the invention.
  • Fig. 4 is a diagrammatic illustration of a still further arrangement of milk transfer apparatus for carrying out the method of the invention
  • Fig. 5 is a diagrammatic illustration of a farm tank showing one arrangement of a level sensing device forming portion of the milk transfer apparatus
  • Fig. 6 is a diagrammatic illustration of another farm tank showing a different arrangement of level sensing apparatus
  • Fig. 7 is a diagrammatic illustration of another farm tank with a different arrangement of level sensing apparatus.
  • Fig. 8 is a diagrammatic illustration of another farm tank with another arrangement of level sensing apparatus, shown in a calibration configuration
  • Fig. 9 is a detail of part of the apparatus of Fig. 8, and
  • Fig. 10 is a view of the farm tank of Fig. 8 with the level sensing apparatus in a measuring configuration.
  • FIG. 1 there is illustrated apparatus according to the invention in this case for measuring the transfer of milk according to the method of the invention between a liquid supply container, in this case a farm tank 10 and a liquid receiver container, in this case a milk collection tanker 11.
  • the apparatus comprises a control computer 12 mounted on the tanker 11 and an associated electronic dipstick 14 which can be inserted into the farm tank 10 as shown in the drawings to measure the level of liquid in the farm tank 10.
  • the computer 12 which is connected to the dipstick 14 converts a liquid level measured by the dipstick 14 in the farm tank 10 to the equivalent volume (or weight) of liquid in the farm tank 10 and displays and records the measured volume as weight.
  • a milk transfer pump 15 mounted on the tank 11 is operable in response to a signal generated by the computer 12 to pump milk from the farm tank 10 into the tanker 11 through a hose 16 connected between the farm tank 10 and an inlet of the pump 15 and a milk delivery line 17.
  • the tanker 11 has a number of separate compartments Ila as shown in Fig. 2 and the milk delivery line 17 connects with each compartment through one of a plurality of automatic valves 18. Operation of each valve 18 is controlled by the computer 12 for selectively discharging milk into a desired compartment Ila of the tanker 11.
  • the computer 12 is programmed to utilise the volume measurement of the liquid in the farm tank 10 to select (by driver request or automatically) which compartment Ila or compartments Ila to deliver the milk into. If there is insufficient space to take all the milk the driver will be alerted. To facilitate this the computer 12 keeps a record of the ullage in each compartment.
  • An automatic sampler 19 is provided in the milk delivery line 17 and can be controlled by the computer 12 to take a number of discrete samples of milk at spaced time, weight as volume intervals during the transfer of milk between the farm tank 10 and the tanker 11 to provide an accurate composite sample of the milk transferred.
  • the computer 12 advantageously is programmed to utilise the measured initial volume in the farm tank 10 to operate the sampler 19 to obtain an accurate representative sample of the milk during transfer. Continuous volume readings may be taken during the collection for driving the sampler 19.
  • the sampler is driven at a rate proportional to the flow rate of the milk being transferred and inversely proportional to the total volume of milk transferred.
  • a suitable code is inputted to the computer 12 to recognise the particular farm tank 10 being measured.
  • the electronic dipstick 14 carries a pressure sensor at a lower end of the dipstick 14, the measured pressure giving an indication of the height of liquid above the pressure sensor.
  • Each farm tank 10 may be provided with its own electronic dipstick 14.
  • one or more electronic dipsticks 14 may be provided on the tanker 11 for insertion during collection into the different types of farm tank 10 on the collection round of the tanker.
  • the senor on the dipstick 14 takes a pressure reading which is fed to the computer 12.
  • the reading may be compensated for variables such as temperature, hysteresis - which will depend on whether the levels are going up or down, and the reading may be filtered to remove the effect of surface agitation, swirling of the milk in the tank, sudden air pressure change in the tank (due, for example, to the lid being closed) and electrical noise.
  • the height of liquid in the farm tank 10 can be calculated by the computer 12 according to the formula:
  • the density of the milk may be determined from a sample of the milk or by using a density meter. However, when milk is being collected it is generally aerated as it is agitated prior to collection for thoroughly mixing the milk. To measure the density of the milk when collecting the milk a measure of the density of aerated milk would be obtained which would be less than non-aerated milk. Therefore to overcome this problem, preferably the density of milk in a previous days milk collection after it is de- aerated is used when calculating the height of milk in the farm tank 10. This density is obtained from a settled sample of the previous days milk under laboratory conditions to give an accurate density value. The value of the density of milk does not change significantly from day to day.
  • the appropriate density value for each supplier is inputted to the computer 12 prior to collection.
  • a number of correction factors may be used by the computer 12 where appropriate for obtaining an accurate height measurement.
  • the height may be corrected where a tank is out-of-level, corrected by a slope and offset to take into account the calibration of the sensor, compensated for non-linearity of the pressure sensor - this is done using a look-up table which will be unique for each sensor.
  • Each milk farm tank 10 has an associated chart which gives an equivalent volume for each measured height of milk in the tank. This chart is loaded into the dipstick control computer, either in the computer's own memory or as a plug-in datapack, one per farm milk tank 10.
  • One of the problems of using a chart to convert from a height to a volume or weight is the large amount of data required to be stored in the computer; there is normally a reading every millimetre.
  • the computer will compact the data by deducing a formula (for example the relationship may be linear) or by storing a limited number of points on the curve and interpolating between the points for intermediate readings (using an appropriate curve-fitting algorithm) .
  • the computer will use a numeric compacting algorithm (for example, the initial reading may be stored, and only the increments to the next and subsequent readings will be stored: since the difference between adjacent readings will not exceed 1.5 litres, four bits will be sufficient whereas, sixteen bits would be required to hold the actual reading, thereby achieving a 4:1 compaction).
  • a datapack is held for each farm milk tank, and this is plugged into the dipstick control computer. The datapack will hold both the calibration table and the farm tank/farmer identification.
  • the operator of the milk tanker 11 will enter the farm code onto the dipstick control computer which will select the appropriate conversion chart for the farm milk tank 10 (or the driver will plug in the datapack for the farm milk tank 10). He will then insert the electronic dipstick 14 into the farm milk tank. Once the control computer recognises that the dipstick 14 is located onto an associated mounting bracket (through a proximity, optical or micro-switch), it will take a temperature-compensated reading from the dipstick, convert this to a volume or weight and display this reading. The operator then activates a switch, for example by pressing a button to accept the reading. Some farm milk tanks require the operator to take two readings at opposite sides of the tank, and to record the average of the readings to compensate for out-of-level. The electronic dipstick 14 can be used to take two measurements and average the measurements for this type of milk tank.
  • the milk is then transferred from the farm tank 10 into the tanker 11.
  • the final level of milk in the farm tank 10 is calculated in similar fashion to the calculation of the initial level and the volume of liquid transferred is calculated as the difference of the calculated initial and final volumes.
  • all the milk in the farm tank 10 is transferred to the tanker 11.
  • the volume of liquid transferred is stored by the computer 12 for subsequent downloading, for example to a creamery's main computer.
  • the height sensor in the farm tank 10 may be an ultrasonic sensor. This may be mounted on the farm tank 10 or may be carried by the tanker 11 for mounting on the farm tank 10 prior to taking a collection. In use, before a reading is taken, foam or lumps of butter on top of the milk are removed, for example, either manually by the driver, by a directed blast of pressurised air.
  • the ultrasonic sensor is positioned in a vertical pipe (fixed onto the farm tank 10) which goes down into the milk. The ultrasonic sensor is operated to take a reading which is fed to the computer 12. The computer may adjust the sensor reading to compensate for temperature. The sensor reading may be filtered to remove the effect of surface agitation and electrical noise.
  • the height of milk in the farm tank is calculated by the computer 12 using the sensor reading and the height may be corrected by a slope and offset to take into account the calibration of the sensor. Further corrections due to tank out-of-level may be applied by the computer 12 during calculation of the volume of milk in the farm tank 10.
  • FIG. 8 there is illustrated another farm tank 10 with a sensor/transducer 30 which in this case is of the ultrasonic type.
  • the sensor 30 is mounted on a rig 31 which is fitted into an inlet opening 32 in the tank 10.
  • the rig 31 includes a pair of downwardly extending reflector plates 33, 34 against which a sound wave is reflected to calibrate the transducer 30 to improve the accuracy of the reading taker.
  • the distance is calculated using an ultrasonic sensor by measuring the time for a sound impulse to travel from the transducer 30 to the surface 35 of the milk in the tank 10 and back again. Historically, the speed of sound in air is used to calculate the distance.
  • the speed of sound in air is however dependent on the density of the air and to compensate for this a temperature and pressure readings may also be taken to compensate for the differences in density. This is generally difficult and time consuming, particularly where a high level of accuracy typically ( ⁇ 0.5mm) is required as in the present case.
  • the sound impulse is first passed through a defined path in the air through which the sound is to be passed.
  • the path is in this case defined by the reflector plates 33,34.
  • the reflector plates are set a known distance apart, the distance from the transducer 30 to the plate 33 to the plate 34 and back is known (this is the calibration distance) and is, for example 0.5 metres.
  • H-L is the required measurement.
  • temperature sensors may be provided.
  • two temperature probes may be used, mounted on the dipstick 14.
  • a first probe is used to measure the temperature of the milk which is used by the computer 12 to adjust the pressure sensor reading, to adjust the computed volume and optionally to maintain a temperature profile of the milk since milking.
  • a second probe may be used to measure the air temperature in the top of the tank, and where appropriate, this reading is used to adjust the ultrasonic probe reading.
  • the apparatus may include a plurality of reflector means to decrease the volume occupied by the calibration u nit without affecting the calibration distance.
  • the reflector means may be marked, for example slidably or pivotally, for movement between an extended calibration position and a retracted measuring position.
  • Tank level sensors may also optionally be provided. As far as possible the dipstick should be mounted on the farm tank 10 in a position which is unaffected or least effected by level shifts in the tank as this could result in an incorrect volume calculation.
  • An out-of-level sensor may be used to flag the volume measurement as suspect. This sensor may be arranged to detect a level change in any direction. Alternatively a sensor may be used which would give an out-of-level reading in either case. These readings would be taken in by the computer 12 and used to correct the computed height before calculating the volume.
  • the control computer 12 may have display means to show the volume readings, to prompt for set-up data (for example, date and time) and to display alarm conditions. Input means may also be provided such as a keyboard and other control buttons to initiate the measurement, enter set-up data and clear alarm conditions.
  • the computer 12 has digital, analog and pulse inputs to take data in from the various sensors.
  • a real-time-clock is provided to measure time-since-milking and other relevant timings.
  • a memory (optionally removable) is provided to store data relating to the sensor (for example, calibration data and a look-up table to correct non-linearity) .
  • a memory (optionally removable) to store data relating to the farm tank (shape information or look-up tables) to be used to convert from height to volume.
  • a further memory (optionally removable) is provided to store information relating to the farmer and milk (for example, the density of the milk or temperature profile of the milk) .
  • the computer 12 computes the volume of the milk in the farm tank 10 from the height that it has calculated on receipt of measurement from the sensors. It will do this principally by looking at a height-to-volume table stored in its memory.
  • the look-up table may optionally contain formulae if the farm tank has regular cross sections.
  • the computer 12 may adjust the computed volume to a particular temperature (normally 4°C) .
  • the computer 12 may optionally measure and store the agitation profile of the milk. This may be achieved by detecting pressure or level changes in the milk as these will occur when the mixing paddle within the farm tank 10 is active. Further, the computer 12 may detect and store the volumes and times of each milking. This may be achieved by detecting the increasing volume which will occur when new milk is added to the farm tank 10. Means is also provided for transferring data from the computer 12 to and from another computer such as a central creamery computer. This data will include some or all of:
  • Additional sensors may also be provided on the dipstick 14, for example, a pH sensor, a conductivity sensor or the like.
  • the volume may be used to control the sampling. Further by measuring the volume in the farm tank 10 prior to transfer, the computer 12 may be used to predict whether it is necessary to switch compartments in the tanker 11 prior to or during collection, thus avoiding unnecessary overflow and spillage.
  • the system for transferring milk according to the present invention is relatively inexpensive and easy to use with existing installations. Accurate flow meters with the necessary associated de-aeration equipment, which are relatively expensive and bulky items, for recording the volume of liquid transferred are not required as a pressure sensor is used.
  • the apparatus according to the present invention is also simpler and more robust than conventional flow meters.
  • the speed of collection can also be increased as the agitation of the milk in the farm tank 10 does not adversely affect the measurements taken throughout the process.
  • FIG. 3 another apparatus for milk transfer is shown, this apparatus is largely similar to the apparatus of Fig. 1 and like parts are assigned the same reference numerals.
  • an electronic dipstick 14 is permanently mounted in the farm tank 10 and a plug connection 20 is provided for connecting the dipstick 14 to the computer 12 for taking a collection of milk.
  • each farm tank 10 has an associated electronic dipstick 14 connected to a wall mounted measurement computer 25 for recordal of the milk transfer. After the milk transfer, data captured by the measurement computer 25 is transferred to the computer 12 on the tanker 11 by any suitable means such as a cable connection, memory card or manual transfer.
  • Fig. 5 shows an arrangement in which the dipstick 14 is mounted on a hinged lid 30 of the farm tank 10.
  • Fig. 6 shows a fixed pressure sensing apparatus 30 mounted on an external wall of the farm tank 10 with a pressure sensor head 31 extending into the farm tank 10 at a lower end of the farm tank 10.
  • a data capture and display computer 32 is provided on the farm tank 10 and means is provided for connecting the computer 32 to the computer 12 on the tanker 11 to transfer information therebetween.
  • Fig. 7 shows another arrangement of fixed pressure sensor 35 mounted at a lower end of the farm tank 10, the sensor 35 being connectable to the tanker computer 12 for data transfer to the tanker computer 12 in a similar manner to the method and apparatus of Figs. 1 and 2.
  • the senor can measure the oscillation of the liquid surface and the computer 12 may be programmed to accurately predict a final level to which the oscillating surface will decay. This predicted final level may be used as the initial level of liquid to calculate the initial volume of liquid in the farm tank 10.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

On transfère du lait liquide du réservoir (10) d'une exploitation agricole à un camion-citerne de laiterie (11). Un calculateur pilote (12) est monté dans le camion (11), et une jauge de niveau électronique (14) associée, notamment un capteur de pression ou un transducteur ultrasonore (30), est montée dans le réservoir (10). On détermine à l'aide du transducteur le niveau du liquide à l'intérieur du réservoir (10) et on le note. Pendant le transfert, on peut prélever des échantillons en fonction du temps, du poids ou du volume transféré. Dans le cas d'un capteur de pression, les relevés sont corrigés pour prendre en compte l'aération. Dans le cas d'un transducteur ultrasonore (30), l'unité est étalonnée pour prendre en compte les différences de la densité de l'air au-dessus du liquide dans le réservoir (10).
PCT/IE1992/000010 1991-09-22 1992-09-22 Dosage de liquides WO1993006438A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IE1743/91 1991-09-22
IE174391 1991-09-22
IE921645 1992-05-22
IE1645/92 1992-05-22

Publications (1)

Publication Number Publication Date
WO1993006438A1 true WO1993006438A1 (fr) 1993-04-01

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PCT/IE1992/000010 WO1993006438A1 (fr) 1991-09-22 1992-09-22 Dosage de liquides

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AU (1) AU2555492A (fr)
WO (1) WO1993006438A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU660911B3 (en) * 1993-11-02 1995-07-06 Apv Rosista Hygienic tank lorry pump
FR2767192A1 (fr) * 1997-08-06 1999-02-12 Serap Industries Installation de mesure volumetrique du contenu de reservoirs de collecte de lait
NL1019496C2 (nl) * 2001-12-05 2003-06-10 Lely Entpr Ag Samenstel van een melktank en een meetsonde.
US10405534B2 (en) 2014-12-02 2019-09-10 Cnh Industrial America Llc System and method for electronic fluid measurement
US11177494B2 (en) 2018-03-05 2021-11-16 H2 Powertech, Llc Systems and methods for forming a liquid mixture having a predetermined mix ratio and reforming systems, reforming methods, fuel cell systems, and fuel cell methods that utilize the liquid mixture

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1096106B (de) * 1958-08-25 1960-12-29 Walter Jansky Annahmevorrichtung fuer Milch
WO1984003488A1 (fr) * 1983-03-07 1984-09-13 Cypher Systems Procede et systeme de securite et de gestion d'une concession d'exploitation d'un champ de petrole
US4630655A (en) * 1985-10-24 1986-12-23 Veeder Industries, Inc. Storage tank flow control valve assembly
FR2611059A1 (fr) * 1987-02-13 1988-08-19 Comeureg Sa Cie Europ Regulati Procede d'injection controlee de colorants ou produits auxiliaires dans une cuve de traitement et installation de mise en oeuvre dudit procede
DE3740603A1 (de) * 1987-12-01 1989-06-15 Eckardt Ag Einrichtung zur messung des volumenstromes fuer aus einem oder in einen offenen behaelter ab- bzw. zulaufende fluessigkeit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1096106B (de) * 1958-08-25 1960-12-29 Walter Jansky Annahmevorrichtung fuer Milch
WO1984003488A1 (fr) * 1983-03-07 1984-09-13 Cypher Systems Procede et systeme de securite et de gestion d'une concession d'exploitation d'un champ de petrole
US4630655A (en) * 1985-10-24 1986-12-23 Veeder Industries, Inc. Storage tank flow control valve assembly
FR2611059A1 (fr) * 1987-02-13 1988-08-19 Comeureg Sa Cie Europ Regulati Procede d'injection controlee de colorants ou produits auxiliaires dans une cuve de traitement et installation de mise en oeuvre dudit procede
DE3740603A1 (de) * 1987-12-01 1989-06-15 Eckardt Ag Einrichtung zur messung des volumenstromes fuer aus einem oder in einen offenen behaelter ab- bzw. zulaufende fluessigkeit

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU660911B3 (en) * 1993-11-02 1995-07-06 Apv Rosista Hygienic tank lorry pump
FR2767192A1 (fr) * 1997-08-06 1999-02-12 Serap Industries Installation de mesure volumetrique du contenu de reservoirs de collecte de lait
WO1999008077A1 (fr) * 1997-08-06 1999-02-18 Serap Industries Installation de mesure volumetrique du contenu de reservoirs de collecte de lait
NL1019496C2 (nl) * 2001-12-05 2003-06-10 Lely Entpr Ag Samenstel van een melktank en een meetsonde.
EP1317880A3 (fr) * 2001-12-05 2004-04-14 Lely Enterprises AG Assemblage d'un réservoir à lait et d'une sonde de mesure
EP1566098A3 (fr) * 2001-12-05 2006-02-15 Lely Enterprises AG Assemblage d'un réservoir à lait et d'une sonde de mesure
US10405534B2 (en) 2014-12-02 2019-09-10 Cnh Industrial America Llc System and method for electronic fluid measurement
US11147259B2 (en) 2014-12-02 2021-10-19 Cnh Industrial America Llc System and method for electronic fluid measurement
US11357224B2 (en) 2014-12-02 2022-06-14 Cnh Industrial America Llc System and method for electronic fluid measurement
US11177494B2 (en) 2018-03-05 2021-11-16 H2 Powertech, Llc Systems and methods for forming a liquid mixture having a predetermined mix ratio and reforming systems, reforming methods, fuel cell systems, and fuel cell methods that utilize the liquid mixture

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