Classifications

• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01G—WEIGHING
  • G01G17/00—Apparatus for or methods of weighing material of special form or property
  • G01G17/04—Apparatus for or methods of weighing material of special form or property for weighing fluids, e.g. gases, pastes

Definitions

• the invention relates to an arrangement for the transfer, mass determination and delimitation of liquids, in particular for beverages such as milk or beer, according to the preamble of the main claim.
• the arrangement of the genus marked in the introduction corresponds essentially to the arrangement according to DE-PS 35 45 160. In contrast to the arrangement of the older one
• the present arrangement is based on at least one measuring container which is equipped with an inlet and an outlet for the liquid stacked in the measuring container.
• DE-PS 35 45 160 The restriction made in DE-PS 35 45 160 to at least two measuring containers, each of which can be connected via controllable valve arrangements on the one hand to an inlet line for filling from the delivery container and on the other hand to an outlet line for emptying into the collecting container, is dropped.
• the feature of a connection between the inlet line and the measuring container on the one hand and the outlet line and the measuring container on the other hand, in the sense of an unlimited, continuous, objective piping, is omitted as a generic characteristic with regard to a broader category Area .
• the arrangement according to DE-PS 35 45 160 is limited to at least two measuring containers, each of which is connected to an inlet line and an outlet line. So that no force is exerted on the measuring containers via these lines during weighing, the connections between the measuring containers and the associated line sections in the area between the measuring container and the support surface must be extraordinarily elastic. Since the measuring container according to the invention experiences only slight displacements parallel to the support surface, the demands placed on these line connections are not nearly as high as in the case of arrangements according to the prior art
• the pendulum suspended weighing tanks have CDE 33 32 434 Cl, DE-OS 28 21 372).
• high measuring accuracies when determining the weight force of the liquid stacked in the measuring container with measuring containers to which the inlet and outlet lines are also connected during weighing can generally only be achieved with a great deal of design effort.
• a pendulum-suspended measuring container requires more space than a tethered one within the overall arrangement, and on the other hand, a measuring container that can swing out requires a relatively long time to reach the rest position required for weighing. This time period stands for orders only generally not available for the transfer, mass determination and delimitation of liquids.
• Measuring container when loading the load cell which is in the millimeter range, is to be ensured in a measuring container with lines connected even during weighing by means of suitable elastic line connections.
• the other line arrangements and guides according to the invention alternatively specified in the characterizing part of the main claim, guarantee a force-free weighing from the outset.
• an advantageous development of the arrangement according to the invention provides that the inlet line section opens out from a first storage container, and the outlet line section opens into a second storage container.
• the storage container upstream of the measuring container is to be dimensioned in such a way that the liquid which is continuously conveyed during weighing and emptying of the single measuring container can be stored in the latter.
• the storage container downstream of the single measuring container is expediently dimensioned such that it can hold the entire contents of the completely filled measuring container.
• the support surface is designed as a frame
• the degree of freedom of displacement of the measuring container is achieved by bearings within the frame.
• An advantageous embodiment of the arrangement according to the invention provides for measures for the radial fixation to be used for the storage of the measuring container, which act on the measuring container and only transmit tensile forces.
• Such precautions can be, for example, ropes or chains.
• the two latter bearing variants speak for their low susceptibility to corrosion and the fact that no significant maintenance is required.
• the upper and lower bearing journals are each guided by at least three support rollers, which in turn are supported, for example, via rolling elements.
• This arrangement ensures that the forces to be overcome during the transition from static friction to rolling friction are very small, as a result of which the sensitivity of the arrangement, particularly in the case of very small changes in mass, is significantly increased.
• Such small changes in mass are impressed on the measuring container, for example in the calibration test, which, in contrast to the normal measuring operation of the arrangement, prescribes a permanent, static loading of the force-measuring device by the measuring container.
• Another advantageous embodiment of the arrangement according to the invention provides for the spring / damping elements to be arranged on the frame in such a way that the center of gravity of the frame to be damped lies in an imaginary plane laid through the spring / damping elements. As a result, the resulting moments of force, which are formed by the forces acting in the spring / damping elements and in the center of gravity, are minimized, in particular in the case of transverse vibrations and transverse movements.
• a further advantageous embodiment of the arrangement according to the invention provides that at least one baffle plate is provided in the measuring container. which is oriented in the longitudinal axis of the measuring container.
• a further embodiment of the arrangement according to the invention provides for aligning a plurality of baffle plates radially to the center of the measuring container and for each of them to act on the jacket of the measuring container and to connect them to one another in the center of the measuring container. Will the precautions be radial
• Fixing as suggested by another embodiment of the arrangement according to the invention, arranged in the radial direction of the baffle plates and in their continuation outwards, it is possible in a simple manner to carry out the storage necessary for the measuring container Introduce forces into the measuring container without deformation.
• an advantageous development of the arrangement according to the invention provides that the measuring container can be transferred alternately from the weight-relieving or weight-loading position into a force-measuring device .
• a lifting device which is supported directly or indirectly on the supporting surface or the frame either via the force-measuring device or directly on the measuring container, so that the weight of the measuring container thereby the load cell can either be stamped on or removed from it.
• the angle of inclination of the support surface is determined from the weight force component of the emptied measuring container, which is measurable via the force measuring device, and its actual weight force.
• the above measuring method results in the simplest overall arrangement imaginable. A falsification of the angle of inclination undoubtedly results from unavoidable residues of adhesive milk in the measuring container after its emptying.
• Adhesive milk residues are reduced on the one hand with the emptying time provided, on the other hand they can be determined in a first approximation as a function of the aforementioned emptying time and are therefore a reproducible quantity available for the measurement value correction.
• the weight force component (F H * ) is measured after a defined, reproducible emptying time and processed in connection with the assigned actual weight force of the vertically arranged measuring container, which is emptied under the same conditions, it is possible to falsify the measured values largely compensate arithmetically with adhesive milk residues.
• the inlet line section is introduced into the measuring container without contact via a container opening and the outlet line section can be connected to the measuring container via a coupling.
• An advantageous embodiment of a method by means of an arrangement according to the invention provides that a measuring system equipped with at least two measuring containers is filled, emptied or partially emptied alternately or in cyclical order with the liquid to be transferred, and that the mass of the filled and emptied or partially emptied Measuring container is determined.
• a first storage container is connected upstream and a second downstream of a single measuring container, the liquid is continuously conveyed into the first storage container and continuously removed from the second storage container, and the mass of the filled and the emptied or partially emptied measuring container is determined.
• the arrangement according to the invention manages with a single force measuring device, which serves both the weighing of the measuring container and its inclination determination.
• a method which can only be carried out with the arrangement according to the invention provides that the first conveying device, the downstream inlet line section and the measuring container are emptied into a collecting container arranged on the measuring container without force effect via lockable drain lines, that the remaining quantity transferred into the collecting container is weighed by the following supplier and is free of force via a lockable drain line is transferred to the drain line section.
• the remaining quantity of the current supplier is removed from the acceptance system without being lost for the quantity balance. Since the subsequent supplier finds a "dry" acceptance system and leaves a "wetted” system, this quantity of adhesive milk, which is a system constant to a good approximation, must be taken into account in terms of quantity. This is done according to the invention in that the remaining amount can be emptied into a collecting container arranged on the measuring container and can be weighed there. In known arrangements that work volumetrically, such a procedure is not feasible, since in this case the remaining quantity would have to be transferred to the quantity delimitation device after the milk transfer and quantity delimitation had ended, and the shutdown level would change there in an impermissible manner.
• the method proposed according to the invention not only allows the residual quantity to be recorded in terms of quantity, it also ensures that this residual quantity is at least not mixed with the milk of the subsequent supplier before the sampling point. This is achieved in that the aforementioned residual amount via a drain line in the Drain line section is transferable.
• the sampling problem which arises when milk is taken over and delimited is almost ideally resolvable, since a partial quantity representative of its filling quantity and the contents of the liquid can be removed from the measuring container without great effort.
• Ingredients representative portion is removed and transferred to a sample storage tank, that the portions are stacked and mixed together, and that a sample amount is filled into a sample vessel from the total amount in the sample storage container and the remaining amount is emptied into the drain line section.
• a sample amount is filled into a sample vessel from the total amount in the sample storage container and the remaining amount is emptied into the drain line section.
• the known method of pipetting or an improved device as described for example in DE-OS 34 40 365. If the liquid to be taken over requires several measuring containers to be filled in succession, each filled measuring container becomes a representative one
• Containers collected and transferred to a common container, or whether the liquid from a common container is distributed into several containers.
• FIG. 1 shows a schematic representation of an arrangement according to the invention, the measuring container being able to be filled via a first storage container connected upstream thereof and emptying into a second storage container connected downstream;
• Figure 2 shows a further arrangement according to the invention in a schematic representation with a measuring container displaceable via a lifting device;
• Figure 2a is a plan view of the arrangement according to
• FIG. 3 shows an embodiment according to FIG. 1 with a device for treating the remaining amount and a second one for obtaining a representative sample amount;
• Figure 4a and 4b two storage variants of the arrangement according to the
• FIG. 6 shows other arrangements according to the invention, wherein up to 6c the inflow from and the outflow takes place in the same way as in the
• a measuring container 1 (FIG. 1) is mounted on an upper and a lower bearing journal 1i or 1j in a frame 21 by means of radial bearings 22a, 22b.
• the measuring container 1 has a degree of freedom of displacement only in the direction of its bearing axis.
• the force component F H * of the weight force F acting in the direction of the bearing axis acts on a force measuring device 18, the so-called weighing cell, and is measured there.
• measures 44 such as ropes or chains, which only transmit tensile forces between the frame 21 and the measuring container 1 (see FIG. 4).
• the measured value F H * is not shown
• a first conveying device 16 is arranged, with which liquid, in particular milk or beer, is first conveyed from a first container (not shown) into a first storage container 4b and from there via a supply line section 4a into the measuring container 1.
• the inlet line section 4a opens into the measuring container 1 without contact via a container opening 10. This prevents force effects from the inlet line 4 or the inlet line section 4a on the measuring container 1.
• the first storage container 4b can be closed by a shut-off device 4c in the inlet line section 4a.
• the measuring container 1 has in its lower bottom a discharge opening 1m which can be controlled by a shut-off device and which opens into a collecting vessel 47 without contact.
• the latter is connected via an outlet line section 5a to a second storage container 5b, to which a second conveying device 17 is connected.
• the force-measuring device 18 is loaded by the measuring container 1 only during the weighing. During the other process steps, it is supported on the lower bearing journal 1i on a support 52 by lowering via a lifting device 43.
• E denotes the inlet flow, which flows via the feed line 4 to the first conveyor 16 and from there into the first
• Storage container 4b arrives. Components 33, 34 and 43 and their function are explained in more detail in the description of FIGS. 2, 2a.
• the inlet and outlet to and from the measuring container 1 can also be configured differently.
• FIGS. 5 to 6c Embodiments in this regard are illustrated and explained in FIGS. 5 to 6c described below. It is also not absolutely necessary for the inlet line section 4a, as shown in FIG. 1, to open at the top of the measuring container 1. In contrast to this, a line entering the measuring container 1 from below, which continues inside the measuring container, for example, up to the upper floor area, is conceivable. Likewise, the drain line section 5a does not have to be connected to the underside of the measuring container 1. If the liquid can be sucked out of the measuring container 1 via a second conveying device 17, then it is also possible to lead the drain line section 5a upwards out of the measuring container 1, as the arrangements according to FIGS. 6a to 6c show.
• FIGS. 2 and 2a A further arrangement according to the invention is shown schematically in FIGS. 2 and 2a.
• Figure 2 shows a view of the arrangement in the middle section, the spring / damping elements 33 in connection with their chassis-side position 34 have been folded into the cutting plane.
• Figure 2a shows the top view of the aforementioned arrangement.
• the inlet line section 4a is guided into the measuring container 1 without contact via the container opening 10.
• the drain line section 5a is via a coupling 45, which consists of an upper and a lower coupling half 45a or 45b and a seal 45c sealing the coupling halves from one another can be connected to the measuring container 1.
• the outlet opening 1m of the measuring container 1 opening into the upper coupling half 45a can be controlled via the shut-off device 1n arranged in it.
• the storage of the measuring container 1 takes place by means of measures 44 which fix the measuring container 1 radially, but which enable it to have a limited axial displacement in the direction of its axis of symmetry without any force effects.
• the arrangements 44 act on the one hand on the measuring container 1 and on the other hand on the frame 21, and they can only transmit tensile forces. Steel cables are preferably used, the end storage and fixing of which will be explained below.
• the precautions 44 act on the jacket of the measuring container 1 in such a way that they are oriented outward in the radial direction of the baffle plates 11 and in their continuation. Since the baffle plates are arranged in a star shape and are aligned radially to the center of the measuring container 1 and are connected to one another there, the force is introduced into the measuring container 1 without the risk of deformation of the jacket of the measuring container 1.
• the measuring container 1 can be axially displaced by means of a lifting device 43. It consists of a cylinder 43a, a piston 43b and a piston rod 43c. The latter is connected to a force measuring device 18, a so-called weighing cell.
• the measuring container 1 hangs on it in turn Connections between the force-measuring device 18 and the piston rod 43c on the one hand and the measuring container 1 on the other hand are designed to be flexible; they can only transmit tensile forces.
• the piston 43b can be acted upon by a pressure medium D within the cylinder 43a.
• the lifting device 43 If the lifting device 43 is not activated, the entire weight of the measuring container 1, including any liquid that may be stacked in it, is supported via the coupling 45 on the drain line section 5a. As a result, a secure seal of the two coupling halves is achieved at the same time. In this position, the force measuring device 18 is completely relieved of weight forces.
• the measuring container 1 can be transferred via the lifting device 43 into a device 18 which measures the forces and is loaded with the weight of the measuring container 1. Simultaneously with this transfer, the drain line section 5a is decoupled from the measuring container 1.
• the measuring container 1 is completely free of falsifying external forces, since the inlet line section 4a is also introduced into the measuring container 1 in a contact-free manner via the container opening 10.
• the measuring container 1 is supported on the weighing cell 18 with the application of compressive forces, and the lifting device can also be arranged below the measuring container 1.
• the frame 21 is mounted via spring / damping elements 33 in the entire arrangement or on the chassis 34.
• the spring / damping elements 33 are arranged in such a way that the center of gravity S of the frame 21 to be damped lies with all of its components in an imaginary plane through the spring / damping elements 33. With this arrangement, moments of force which are formed from the inertial forces acting in the center of gravity and the reaction forces in the spring / damping elements 33 are largely minimized.
• the inlet flow is marked, which reaches the measuring container 1 via the inlet line section 4a.
• the filling of the measuring container 1 and the level limitation are described in DE-PS 35 45 160.
• the weighing takes place without forceful reactions from the inlet and outlet line sections 4a and 5a to the measuring container 1, since the former is introduced into the measuring container 1 without contact in every phase of the filling and emptying process, and the latter during weighing is decoupled from the measuring container 1.
• the outlet flow A can be transferred via the outlet opening 1m controllable with the shut-off device 1n into the drain line section 5a and from there into the downstream arrangement.
• the designation K indicates that the entire arrangement or the chassis 34 can perform spatial tilting or tilting movements.
• FIG. 2a In the top view ( Figure 2a) is a second measuring container ter 2 indicated, which can be alternately filled and emptied or partially emptied together with the measuring container 1, so that a quasi-continuous transfer, mass determination and delimitation of liquids can be carried out.
• FIG. 3 shows the arrangement according to FIG. 1 with a device according to the invention for treating the residual amount (shown on the left) and another for obtaining a representative sample amount (shown on the right).
• a sampling device which is known per se and is not shown, is generally located behind the first conveyor device 16 (cf. left-hand illustration of FIG. 3). The up to this sampling device in the system
• Completion of the transfer of the liquid, in particular in the first conveying device 16 and the remaining quantity remaining in the downstream feed line section 4a, is automatically emptied into a collecting container 53 via a first discharge line 54 during the time in which the arrangement is brought to the next supplier.
• the first emptying line 54 is connected to the lowest point of the first conveying device 16 and runs with a slope to the collecting container 53.
• a first storage container 4b is arranged, it is advantageous if the amount of adhesive milk remaining in this storage container is at the lowest point, for example in the inlet line section 4a, without contact the measuring container 1 opens, is collected and is also brought into the collecting container 53 via a second emptying line 54a.
• the collecting container 53 can be emptied into the collecting vessel 47 of the outlet line section 5a via a first outlet line 55.
• the aforementioned lines can be closed by shut-off devices 56, 57 and 58.
• the reasons for handling the remaining amount have already been mentioned above.
• the remaining supplier weighs the remaining quantity, expediently when determining the mass of the first partial quantity of the liquid to be transferred.
• the method according to the invention for determining the remaining quantity ensures a flawless quantity balance for each individual supplier without the liquids, in particular the milk from different suppliers, of different quality being mixed with one another before sampling.
• the arrangement according to the invention explained above remains not only limited to the arrangement with a measuring container 1 and with an upstream and downstream storage container 4b or 5b, but it can be integrated into any arrangement according to the invention in which the residual amount in question from the first conveying device 16 and the downstream lines can be automatically or forcibly brought into a collecting vessel 53, weighed on the measuring container 1 and then transferred to the drain line section 5a.
• the sampling is carried out from the measuring container 1, the residual quantity detection is extended to the detection of the adhesive milk residues remaining in the measuring container.
• a further drain line 54b which can be closed by a shut-off device 66, is connected, which transfers the milk residues that collect in this area on the way to the next supplier and run off from the measuring container waste milk into the collecting container 53.
• the latter is to be arranged so deep in this case that on the one hand an automatic emptying of the measuring container sump is possible in it, but on the other hand the automatic emptying of the collecting container 53 via the drain line 55 into the drain line section 5a is also still given.
• the sampling device shown on the right-hand side in FIG. 3 consists of a partial amount removal device 60, a transfer line 62 connected to the measuring container 1 via an elastic pipe section 62a, a sample flow container 59 with a stirring device 59a, an injection and filling device 59b and a shut-off device 65 in the second storage container 5b merging second drain line 63.
• the partial quantity removal device 60 can be, for example, a known removal device which has a removal standpipe which extends essentially over the entire filling level of the measuring container 1 and the tube wall of which is provided with a longitudinal slot which is closed by a closure element which can be actuated by drive means during filling of the container is released and completed during the removal of a partial quantity representative of the container content.
• Partial quantity from the measuring container 1 into the sample flow container 59 is controlled via a shut-off device 64 arranged in the transfer line 62.
• Each filling of the measuring container 1 delivers a partial quantity proportional to this quantity and content, which is transferred to the sample flow container 59 and stacked there.
• the partial quantities stored in the sample flow container 59 are intimately mixed with one another so that a sample quantity can be filled into a sample flow container 61 therefrom.
• the remaining amount in the sample flow container 59 is then emptied into the second storage container 5b.
• the sample supply container 59 is expediently arranged such that the device for removing the partial quantities device 60 to be extracted partial quantity is to be automatically transferred into it, and that the remaining quantity remaining in it is then automatically emptied into the second storage container 5b.
• the partial quantity proportional to the filling of the measuring container can also be obtained in another way. Since the liquid mass in the measuring container 1 is known at the time the partial quantity is removed, the time-dependent actuation of the shut-off valve 64 in the transfer line 62, for example, enables the partial quantity proportional to the filling quantity in the measuring container 1 to be obtained and transferred to the sample supply vessel 59.
• FIGs 4a and 4b two storage variants of the measuring container 1 are shown schematically.
• the measuring container 1 is supported or supported in such a way that it has a degree of freedom of displacement with respect to the support surface or the frame 21 only in the direction of its weight force component F H *, which is measurable by the forces, the weighing cell.
• the required displacement is extremely small; it moves in the millimeter range. Therefore, in addition to classic bearings by means of roller or slide bearings, bearings in flexible membranes or by means of ropes or chains or other measures 44 that only transmit tensile forces are possible.
• the latter storage is shown in Figure 4a.
• the measuring container 1 is mounted within the frame 21 with provisions for radial fixation 44.
• the latter are preferably steel cables, rope-like structures or chains that can only transmit tensile forces and are otherwise flexible or easily deformable in all directions other than the direction of pull.
• the steel cable 44 is oriented radially towards the center of the measuring container and has at its ends thickenings 44a and 44b, which are preferably applied to the cable in a positive and / or non-positive manner.
• the thickening 44b on the measuring container engages in a rope bearing 49, which is expediently cohesively connected to the jacket of the measuring container 1.
• the frame-side thickening 44a is supported in a tensioning part 48, which is adjustably arranged in the direction of the cable axis within a nut 50, which is expediently integrally connected to the frame 21.
• a lock nut 51 ensures that a measuring container storage and adjustment once set can be secured.
• the provisions for radial fixation 44 are appropriately adjusted so that in the weighing position, in which the force-measuring device 18 is fully loaded with the apparent weight force of the measuring container 1, they run perpendicular to the measuring container axis and, relative to the vertical normal position of the measuring container 1, are just free of tension are installed.
• the precautions for radial fixing 44 then only have to take up the normal force components of the weight force (cf. DE-PS 35 45 160). Impairment of the measurement result due to restoring forces due to residual stresses in the precautions to the radial
• the upper and lower journals 1i and 1j are each guided by at least three support rollers 69 in the frame 21 (FIG. 4b).
• the support rollers 69 which are preferably barrel-shaped, are in turn mounted on needle bearings 68 on a pin 67 arranged within a fork 72.
• the needle bearing 68 has a maintenance-free lubrication, and it is hermetically sealed against external influences via a seal 70.
• the support roller 69, the needle bearing 68, the pin 67 and the fork 72 together form the radial bearing 22a and 22b, which is adjustable in the radial direction within the frame 21 for the purpose of adjusting the upper and the lower bearing journal 1i or 1j .
• Figures 5 to 5c and 6 to 6c show arrangements according to the invention in a schematic representation, in which the inlet to and outlet from the measuring container 1 are configured differently.
• the storage of the measuring container 1 within the frame 21 is shown schematically in all exemplary embodiments in the same way (44; 1i, 22b and 44; 1j, 22b), which merely means that the measuring container 1 itself needs to be stored, but not to a special form of storage pointed out who should.
• 5 shows all the essential reference numerals necessary for the description. Only the changes compared to the embodiment according to FIG. 5 are then identified in the further figures.
• the measuring container 1 (FIG. 5) is articulated on the frame 21 via the force measuring device 18.
• the inlet line section 4a is firmly connected on the one hand to the frame 21 via the fastening 21a and on the other hand to the measuring container 1 via the fastening 1p.
• An elastic pipe section 39 provides a largely force-free connection of the inlet line section 4a to the measuring container 1.
• the outlet line section 5a is in the same way firmly connected on the one hand to the frame 21 via the fastening 21b and on the other hand to the measuring container 1, with the interposition of a further elastic pipeline section 39.
• the frame 21 is connected to the chassis 34 directly or indirectly essentially without its own degrees of freedom of movement, at most with the interposition of spring / damping elements 33.
• the frame 21 can thus reproduce a spatial inclination movement K almost unchanged with the measuring container 1 and all other components.
• E and A denote the inlet and outlet flow of the liquid that is delimited in the measuring container and determined by the force of gravity.
• FIG. 5a shows an arrangement according to the invention in which both the inlet and the outlet line sections 4a and 5a each have a coupling 46 to the
• Measuring container 1 can be connected or detached from it.
• the inlet and outlet line sections 4a and 5a are introduced into the measuring container 1 without contact via the container opening 1.
• the drain line section 5a can be connected to the measuring container 1 via the coupling 46.
• both the inlet and the outlet line sections 4a and 5a have at no time a connection to the measuring container 1.
• the inlet line section is, in the same way as in the arrangement according to FIG. 5b, led into the measuring container 1 without contact .
• the drain pipe Section 5a widens at its measuring container end into the receptacle ef ß 47, into which the controllable outlet opening 1m of the measuring container 1 opens without contact.
• FIGS. 6 to 6c correspond to those of FIGS. 5 to 5c, with the difference that the drain line section 5a is not arranged in the lower floor area of the measuring container 1, but is led out over its upper floor area.
• the solutions shown in FIGS. 6, 6a and 6b are identical to the solutions in FIGS. 5, 5a and 5b with regard to the design of the inlet and outlet line sections 4a and 5a in the area between the frame 21 and the measuring container 1.
• the outlet line section 5a like the inlet line section 4a, is led out of the upper bottom region of the measuring container 1 without contact via a container opening 10.
• Measuring devices for gravimetric mass determination in the sense of the arrangement according to the invention detect the weight of the mass to be determined in each case. For this reason, the term force-measuring device is used in this context. In the simplest case, this can be a spring balance. Modern, highly sensitive and very precise measuring devices work with so-called strain gauges, which deliver an evaluable signal that is proportional to the weight. However, devices that measure the force should also be understood as devices that work on the principle of direct mass comparison.
• this is a beam balance with which a direct mass comparison is possible and with which the mass to be determined, regardless of the slightly changing spatial factor (gravitational acceleration) is exactly measurable.

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• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
• Devices For Dispensing Beverages (AREA)
• Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
• Fats And Perfumes (AREA)
• Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
• Dairy Products (AREA)
• Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
• Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

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• 1988
  • 1988-06-11 JP JP63505501A patent/JPH01503644A/ja active Pending
  • 1988-06-11 KR KR1019890700269A patent/KR930004891B1/ko active IP Right Grant
  • 1988-06-11 WO PCT/EP1988/000521 patent/WO1988009919A1/de not_active Application Discontinuation
  • 1988-06-11 EP EP88905754A patent/EP0323497A1/de active Pending
  • 1988-06-11 DE DE8888109333T patent/DE3864762D1/de not_active Expired - Lifetime
  • 1988-06-11 HU HU884240A patent/HU205661B/hu not_active IP Right Cessation
  • 1988-06-11 AT AT88109333T patent/ATE67306T1/de not_active IP Right Cessation
  • 1988-06-11 AU AU19689/88A patent/AU601062B2/en not_active Ceased
  • 1988-06-11 EP EP88109333A patent/EP0297329B1/de not_active Expired - Lifetime
  • 1988-06-11 ES ES198888109333T patent/ES2026226T3/es not_active Expired - Lifetime
• 1989
  • 1989-02-09 DK DK058989A patent/DK58989A/da not_active Application Discontinuation
• 1990
  • 1990-08-03 US US07/563,665 patent/US5086816A/en not_active Expired - Fee Related

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