WO1995024633A1 - Assaying vessel - Google Patents

Assaying vessel Download PDF

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Publication number
WO1995024633A1
WO1995024633A1 PCT/SE1995/000216 SE9500216W WO9524633A1 WO 1995024633 A1 WO1995024633 A1 WO 1995024633A1 SE 9500216 W SE9500216 W SE 9500216W WO 9524633 A1 WO9524633 A1 WO 9524633A1
Authority
WO
WIPO (PCT)
Prior art keywords
vessel
assaying
shutter
opening
sample
Prior art date
Application number
PCT/SE1995/000216
Other languages
French (fr)
Inventor
Dan Oudal Edberg
Vagn Jepsen Lind
Original Assignee
Tecator Ab
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 Tecator Ab filed Critical Tecator Ab
Priority to AU20882/95A priority Critical patent/AU2088295A/en
Publication of WO1995024633A1 publication Critical patent/WO1995024633A1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/03—Cuvette constructions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials

Definitions

  • the present invention relates to an assaying vessel as well as a method wherein the assaying vessel is used.
  • the vessel is in ⁇ tended to be used during analyses of a free flowing non-liquid material being for instance a powder, a paste, a gel or partic ⁇ les.
  • a sample of the material is brought into the vessel, which comprises an opening or slit in the enveloping wall, called analytical opening.
  • the sample is analysed through said opening or slit by means of an analytical unit placed thereabove.
  • the vessel furthermore comprises means for feeding and/or removal of sample material. Feeding as well as removal is made in the same direction, which direction also is the material passage.
  • Sampling and analyses of samples being representative for one or more produced materials are in industrial plants producing for instance various material mixtures, such as pastes, grains, gels and powders of a continuous and high importance.
  • a known assaying vessel comprises a wall opening being closed by means of a transparent wall section, through which a mate ⁇ rial sample can be analysed by an analytical unit.
  • the sample is compressed by a cylinder, a piston or the like towards the transparent wall section, which can be a solid glass plate or the cover of a detector head of the analytical unit.
  • the piston is after the analysis pulled back and the analysed sample is removed.
  • the inner side of the transparent wall section is be ⁇ fore introduction of a subsequent sample cleaned by means of for instance a cleaning agent.
  • the inner side can alternatively in form of a thin removable film be removed. Cleaning/removing of the inner side of the transparent wall exhibits the disad ⁇ vantages of being difficult, inconvenient and costly with pendant reduced operational security with regard to both the vessel and the production monitored and controlled by an ana ⁇ lytical unit attached thereto.
  • the aim of the present invention is to supply an assaying ves ⁇ sel wherein above disadvantages are substantially eliminated and wherein an analytical opening or slit after each analysis is free of remains from an analysed sample, without the neces ⁇ sity of using removable films, glass plates or cleaning agents as disclosed above.
  • an assaying vessel having an analy ⁇ tical opening or slit placed in a section of the enveloping wall, which section has an inner side facing downwards.
  • the analytical opening or slit is in its closed position covered by a turnable, sliding, hinged, pivoted or loosely arranged shutter, hatch, flap, lid, shuttle or the like, hereinafter called shutter.
  • the shutter is in its open position dislocated in relation to the analytical opening or slit leaving this fully or partly open.
  • An analytical unit can thereby unobst ⁇ ructed analyse a thus exposed surface area of a material sample.
  • the material sample is packed or compressed to secure a material surface area in the analytical opening or slit.
  • the surface adapts the shape of the inner side of said shutter in its closed position.
  • Analyses using an assaying vessel according to the invention include the steps of:
  • the shutter is first closed and thus the analytical opening or slit and the analysed sample is removed
  • - sample feeding and compressing are interrupted when a desired or suitable degree of material compression is obtained and - the shutter is opened and the thus exposed surface area of the sample is analysed.
  • the material sample is ' during the feeding packed or compressed towards the closed shutter, which is, as previously disclosed, arranged in a wall section having an inner side facing down ⁇ wards.
  • a surface area of the material sample is exposed for analysis by sliding, pivoting, turning etc. the shutter to an open positions.
  • the surface remains, due to the fact that it faces upwards, stable and the head of a detector or the like can be brought very close to the surface area without running the risk of being soiled or otherwise contaminated by the material to be analysed, whereby thorough cleaning operations are avoided.
  • the sample area to be analysed is not only stable, it also exhibits a smooth and even surface having substantially similar properties and thickness over its entire area, which is especially important in for instance certain optical determina ⁇ tions and measurements.
  • the shutter is after performed analysis closed and feeding in 'direction of the material passage forces or drives analysed material sample out of the vessel, whereby preparing the assaying vessel for next analysis.
  • Treatments include property changing treatments, such as change of elect ⁇ ric fields or field strengths, magnetisation and locally indu ⁇ ced cooling, freezing or heating and/or other treatments giving for instance an increased adhesion, inner friction and/or vis ⁇ cosity.
  • Mechanical devices can suitably include various packing or compressing cylinders or pistons and/or pressure increasing internal grids, webs or the like. Packing or compression of the sample include, in preferred em ⁇ bodiments, a vibration feeder being mechanically linked to the assaying vessel or being an integrated part thereof.
  • the vessel has in such an embodiment preferably a design substantially resembling that of a truncated cone, tube, pyramid or the like having its largest diameter at the feeding end, thus narrowing in the feeding direction and along the analytical opening.
  • the use of a vibration feeder makes separate means feeding or remo ⁇ ving the sample material unnecessary.
  • a vibration feeder can be used for a well controlled and well defined feeding or removal of the sample material.
  • the above disclosed design means that a sample material during feeding, by for instance a vibration feeder, is being packed or compressed towards the. closed shutter and that the surface area beneath is ready to be analysed when a suitable compression is obtained.
  • the degree of compression is dependent on the proper ⁇ ties of the sample material and can be empirically determined and is suitably expressed as time from start of feeding and packing or compression of a new material sample until termina ⁇ tion thereof.
  • the shutter is according to an especially preferred embodiment in order to occupy less space during opening and in its open position, opened by means of a sliding movement sideways or along the outer surface of the enveloping wall.
  • This design allows a detector head of an analytical unit to be arranged in a substantially fixed position.
  • a design allowing the shutter to be lifted, from its closed position, substantially straight upwards to a height substantially corresponding to its material thickness, facilitates said sliding movement.
  • a minor upwards tilting of the shutter before lifting it in said right angle is advantageously included. Tilting facilitates handling and eli ⁇ minates or reduces possible damages to the sample surface caused by air currents appearing as a result of the shutter being dis- located in relation to its closed position.
  • the shutter is in an alternative embodiment an external part of the enveloping wall " of the assaying vessel, which part is possible to slide or turn longitudinally and/or traversally over the outer surface of said wall.
  • the distance between a detector head and the surface area to be analysed can by such an arrangement be reduced to substantially correspond to the material thickness of the shutter.
  • the shutter is according to a further embodiment attached to the enveloping wall by means of hinges and is opened by being lifted to an angle of 45-120°, preferably 80-100°, in relation to the enveloping wall and thus its closed position.
  • a shutter according to such an embodiment can advantageously by operated by means of a mechanical, pneumatic or hydraulic device, prefe ⁇ rably a cylinder device, or the like. Most embodiments of the shutter can of course be operated by such devices.
  • the shutter is in various embodiments of the present invention preferably pivoted or hinged proportionately to the its open and closed positions.
  • Analyses utilising an assaying vessel according to the present invention is preferably non-destructive, such as measurement of reflection, photoemission, resonance, phase velocity, lumi ⁇ nescence, phosphorescence, odour and/or the like.
  • the assaying vessel according to the present invention is espe ⁇ cially suitable for analyses, monitoring and control of seeds, crops, feedstuffs, fodders, mixtures thereof or therewith as well as various analyses within the nutrient and food industry.
  • the assaying vessel can, however, also be utilised within a number of other industrial and/or analytical fields, such as ⁇ the paint and varnish industry - control of pigment mixtures and pigment concentrations, ⁇ the building industry - raw material control,
  • FIG. 1 show from one side and from above an embodiment of an assaying vessel comprising a hinged shutter and a vib ⁇ ration feeder.
  • Figures 3-4 are cuttings from Figure 1 showing the shutter in its closed and open position.
  • FIG. 5-6 show from one side and from above a second embo ⁇ diment of an assaying vessel having a conical sideways tur- nable shutter, being an external part of an enveloping wall.
  • FIG. 7 show a cross section of the shutter, vessel wall and analytical opening according to the embodiment of Figures 5-6.
  • Figures 1-4 disclose an assaying vessel 2, according to an em ⁇ bodiment of the present invention.
  • the assaying vessel 2 comp ⁇ rises a head end 4 and a tail end 6 for feeding and removal, respectively, of sample material 15 (Figure 7), an enveloping wall 8, an opening (analytical opening) 10 arranged in a wall 8 section having an inner side 17 ( Figure 3 and 4) facing down ⁇ wards, a hinged shutter 12 having an inner side 13 ( Figure 4) likewise facing downwards and a vibration feeder 18 for sample 15 feeding.
  • the assaying vessel 2 is of a substantially trun ⁇ cated conical design having its largest diameter at the head end 4.
  • a sample material 15 ( Figure 7) is, by means of the vib ⁇ ration feeder 18, fed in a feeding direction 16 (indicated by arrow in Figure 1) through the assaying vessel 2, whereby said sample material 15 is compressed towards the closed shutter 12 (see also Figures 3-4).
  • the feeding direction 16 of a sample is in Figure 2 indicated by a line a-b being hatched and arrowed.
  • a sample 15 surface 5 having a shape corresponding to that of the inner side 13 of the shutter 12 is by compression created.
  • the location, shape and structure of the sample 15 surface 5 in the opening 10 is secured by physical principles.
  • Figures 5-6 are an assaying vessel 2 according to an alter ⁇ native embodiment of the present invention disclosed.
  • the as ⁇ saying vessel 2 is provided with a conical shutter 12 being opened or closed by turning it sideways in relation to a longi ⁇ tudinal axis 3 thereof, whereby giving an analytical unit ad ⁇ mission to an opening (analytical opening) 10 ( Figure 1 and 7) and a sample 15 surface 5 ( Figure 7) beneath.
  • the analytical opening 10 is exposed by turning an opening 9 in the shutter 12 to a position overlapping the analytical opening 10 in the assaying vessel 2.
  • the analytical opening 10 is located in an enveloping wall 8 having an inner side 17 facing downwards.
  • FIG 7 is a cross section A - B (see also Figure 5) of a shutter 12, according the same embodiment as Figures 5 and 6, shown.
  • An arrow 11 indicates turning directions of the shutter 12, which turning by changing location of an opening 9 gives or denies admission to an analytical opening 10 and a sample 15 surface 5 beneath.

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)

Abstract

An assaying vessel (2) and a method utilising the assaying vessel (2). The vessel (2) is during analyses of a free flowing non-liquid material. A sample (15) of the material is brought into the vessel (2), which comprises an analytical opening or slit (10) arranged in an enveloping wall (8) section having an inner side (17) facing downwards. A surface (5) area of the sample (15) is analysed through said opening or slit (10) by an analytical unit placed thereabove. The assaying vessel (2) also comprises means (18) for feeding or removal of the sample (15).

Description

ASSAYING VESSEL
The present invention relates to an assaying vessel as well as a method wherein the assaying vessel is used. The vessel is in¬ tended to be used during analyses of a free flowing non-liquid material being for instance a powder, a paste, a gel or partic¬ les. A sample of the material is brought into the vessel, which comprises an opening or slit in the enveloping wall, called analytical opening. The sample is analysed through said opening or slit by means of an analytical unit placed thereabove. The vessel furthermore comprises means for feeding and/or removal of sample material. Feeding as well as removal is made in the same direction, which direction also is the material passage.
Sampling and analyses of samples being representative for one or more produced materials, are in industrial plants producing for instance various material mixtures, such as pastes, grains, gels and powders of a continuous and high importance.
It is known to feed material samples through an assaying vessel being placed adjacent an analytical unit. A sample is after the analysis fed back to for instance the material or to the output of the produced material.
A known assaying vessel comprises a wall opening being closed by means of a transparent wall section, through which a mate¬ rial sample can be analysed by an analytical unit. The sample is compressed by a cylinder, a piston or the like towards the transparent wall section, which can be a solid glass plate or the cover of a detector head of the analytical unit. The piston is after the analysis pulled back and the analysed sample is removed. The inner side of the transparent wall section is be¬ fore introduction of a subsequent sample cleaned by means of for instance a cleaning agent. The inner side can alternatively in form of a thin removable film be removed. Cleaning/removing of the inner side of the transparent wall exhibits the disad¬ vantages of being difficult, inconvenient and costly with pendant reduced operational security with regard to both the vessel and the production monitored and controlled by an ana¬ lytical unit attached thereto.
The aim of the present invention is to supply an assaying ves¬ sel wherein above disadvantages are substantially eliminated and wherein an analytical opening or slit after each analysis is free of remains from an analysed sample, without the neces¬ sity of using removable films, glass plates or cleaning agents as disclosed above. According to the present invention, this is surprisingly obtained with an assaying vessel having an analy¬ tical opening or slit placed in a section of the enveloping wall, which section has an inner side facing downwards. The analytical opening or slit is in its closed position covered by a turnable, sliding, hinged, pivoted or loosely arranged shutter, hatch, flap, lid, shuttle or the like, hereinafter called shutter. The shutter is in its open position dislocated in relation to the analytical opening or slit leaving this fully or partly open. An analytical unit can thereby unobst¬ ructed analyse a thus exposed surface area of a material sample. The material sample is packed or compressed to secure a material surface area in the analytical opening or slit. The surface adapts the shape of the inner side of said shutter in its closed position.
Analyses using an assaying vessel according to the invention include the steps of:
- the shutter is first closed and thus the analytical opening or slit and the analysed sample is removed,
- next material sample is fed into the assaying vessel,
- sample feeding and compressing are interrupted when a desired or suitable degree of material compression is obtained and - the shutter is opened and the thus exposed surface area of the sample is analysed.
The material sample is' during the feeding packed or compressed towards the closed shutter, which is, as previously disclosed, arranged in a wall section having an inner side facing down¬ wards. A surface area of the material sample is exposed for analysis by sliding, pivoting, turning etc. the shutter to an open positions. The surface remains, due to the fact that it faces upwards, stable and the head of a detector or the like can be brought very close to the surface area without running the risk of being soiled or otherwise contaminated by the material to be analysed, whereby thorough cleaning operations are avoided. The sample area to be analysed is not only stable, it also exhibits a smooth and even surface having substantially similar properties and thickness over its entire area, which is especially important in for instance certain optical determina¬ tions and measurements. The shutter is after performed analysis closed and feeding in 'direction of the material passage forces or drives analysed material sample out of the vessel, whereby preparing the assaying vessel for next analysis.
Location, shape and structure of a sample surface in the ana¬ lytical opening is preferably secured by means of one or more physical principles and/or physical treatments or by one or more mechanical devices or combinations thereof. Treatments include property changing treatments, such as change of elect¬ ric fields or field strengths, magnetisation and locally indu¬ ced cooling, freezing or heating and/or other treatments giving for instance an increased adhesion, inner friction and/or vis¬ cosity. Mechanical devices can suitably include various packing or compressing cylinders or pistons and/or pressure increasing internal grids, webs or the like. Packing or compression of the sample include, in preferred em¬ bodiments, a vibration feeder being mechanically linked to the assaying vessel or being an integrated part thereof. The vessel has in such an embodiment preferably a design substantially resembling that of a truncated cone, tube, pyramid or the like having its largest diameter at the feeding end, thus narrowing in the feeding direction and along the analytical opening. The use of a vibration feeder makes separate means feeding or remo¬ ving the sample material unnecessary. A vibration feeder can be used for a well controlled and well defined feeding or removal of the sample material.
The above disclosed design means that a sample material during feeding, by for instance a vibration feeder, is being packed or compressed towards the. closed shutter and that the surface area beneath is ready to be analysed when a suitable compression is obtained. The degree of compression is dependent on the proper¬ ties of the sample material and can be empirically determined and is suitably expressed as time from start of feeding and packing or compression of a new material sample until termina¬ tion thereof.
The shutter is according to an especially preferred embodiment in order to occupy less space during opening and in its open position, opened by means of a sliding movement sideways or along the outer surface of the enveloping wall. This design allows a detector head of an analytical unit to be arranged in a substantially fixed position. A design allowing the shutter to be lifted, from its closed position, substantially straight upwards to a height substantially corresponding to its material thickness, facilitates said sliding movement. A minor upwards tilting of the shutter before lifting it in said right angle is advantageously included. Tilting facilitates handling and eli¬ minates or reduces possible damages to the sample surface caused by air currents appearing as a result of the shutter being dis- located in relation to its closed position.
The shutter is in an alternative embodiment an external part of the enveloping wall" of the assaying vessel, which part is possible to slide or turn longitudinally and/or traversally over the outer surface of said wall. The distance between a detector head and the surface area to be analysed can by such an arrangement be reduced to substantially correspond to the material thickness of the shutter.
The shutter is according to a further embodiment attached to the enveloping wall by means of hinges and is opened by being lifted to an angle of 45-120°, preferably 80-100°, in relation to the enveloping wall and thus its closed position. A shutter according to such an embodiment can advantageously by operated by means of a mechanical, pneumatic or hydraulic device, prefe¬ rably a cylinder device, or the like. Most embodiments of the shutter can of course be operated by such devices.
The shutter is in various embodiments of the present invention preferably pivoted or hinged proportionately to the its open and closed positions.
Analyses utilising an assaying vessel according to the present invention, is preferably non-destructive, such as measurement of reflection, photoemission, resonance, phase velocity, lumi¬ nescence, phosphorescence, odour and/or the like.
The assaying vessel according to the present invention is espe¬ cially suitable for analyses, monitoring and control of seeds, crops, feedstuffs, fodders, mixtures thereof or therewith as well as various analyses within the nutrient and food industry. The assaying vessel can, however, also be utilised within a number of other industrial and/or analytical fields, such as ÷ the paint and varnish industry - control of pigment mixtures and pigment concentrations, ÷ the building industry - raw material control,
÷ energy and heat production - indirect combustion control by analyses of ashes and ÷ the plastics industry - analyses of granule compositions.
These and other objects and the attendant advantages will be more fully understood from below description taken in conjunc¬ tion with appended Figures 1-7, wherein like reference numerals have been applied to like parts and wherein:
- Figures 1-2 show from one side and from above an embodiment of an assaying vessel comprising a hinged shutter and a vib¬ ration feeder.
- Figures 3-4 are cuttings from Figure 1 showing the shutter in its closed and open position.
- Figures 5-6 show from one side and from above a second embo¬ diment of an assaying vessel having a conical sideways tur- nable shutter, being an external part of an enveloping wall.
- Figure 7 show a cross section of the shutter, vessel wall and analytical opening according to the embodiment of Figures 5-6.
Figures 1-4 disclose an assaying vessel 2, according to an em¬ bodiment of the present invention. The assaying vessel 2 comp¬ rises a head end 4 and a tail end 6 for feeding and removal, respectively, of sample material 15 (Figure 7), an enveloping wall 8, an opening (analytical opening) 10 arranged in a wall 8 section having an inner side 17 (Figure 3 and 4) facing down¬ wards, a hinged shutter 12 having an inner side 13 (Figure 4) likewise facing downwards and a vibration feeder 18 for sample 15 feeding. The assaying vessel 2 is of a substantially trun¬ cated conical design having its largest diameter at the head end 4. A sample material 15 (Figure 7) is, by means of the vib¬ ration feeder 18, fed in a feeding direction 16 (indicated by arrow in Figure 1) through the assaying vessel 2, whereby said sample material 15 is compressed towards the closed shutter 12 (see also Figures 3-4). The feeding direction 16 of a sample is in Figure 2 indicated by a line a-b being hatched and arrowed. A sample 15 surface 5 having a shape corresponding to that of the inner side 13 of the shutter 12 is by compression created. The location, shape and structure of the sample 15 surface 5 in the opening 10 is secured by physical principles. The shutter 12, which is hinged to the enveloping wall 8 and operated by means of a cylinder device 14, opens by being lifted to an angle of approx. 90° in relation to the enveloping wall 8 (see Figures 3 and 4), thereby exposing and giving admission to a sample 15 surface 5 in a state ready to be analysed.
In Figures 5-6 are an assaying vessel 2 according to an alter¬ native embodiment of the present invention disclosed. The as¬ saying vessel 2 is provided with a conical shutter 12 being opened or closed by turning it sideways in relation to a longi¬ tudinal axis 3 thereof, whereby giving an analytical unit ad¬ mission to an opening (analytical opening) 10 (Figure 1 and 7) and a sample 15 surface 5 (Figure 7) beneath. The analytical opening 10 is exposed by turning an opening 9 in the shutter 12 to a position overlapping the analytical opening 10 in the assaying vessel 2. The analytical opening 10 is located in an enveloping wall 8 having an inner side 17 facing downwards.
In Figure 7 is a cross section A - B (see also Figure 5) of a shutter 12, according the same embodiment as Figures 5 and 6, shown. An arrow 11 indicates turning directions of the shutter 12, which turning by changing location of an opening 9 gives or denies admission to an analytical opening 10 and a sample 15 surface 5 beneath.
While particular embodiments of the invention have been shown, it will be understood, of course, that the invention is not limited thereto since many modifications may be made, and it is, therefore, contemplated to cover by the appended claims any such modifications as fall within the true spirit and scope of the invention.

Claims

1. An assaying vessel (2) comprising an enveloping wall (8) having at least one opening or slit (10) through which opening (10) a sample material is analysed using an ana¬ lytical unit placed thereabove and means for feeding or removal of the sample material c h a r a c t e r i s e d i n, that the opening or slit (10) is arranged in a sec¬ tion of the enveloping wall (8), which section has at least one inner side (17) facing downwards, that admission to the opening (10) is given or denied by moving at least one shut¬ ter (12) to an open or closed position, that the shutter (12) in a closed position has at least one inner side (13), which side (13) faces downwards and covers the opening (10), that a sample material (15) is fed and packed or compressed to place at least one sample (15) surface (5) in the opening (10) beneath the closed shutter, said surface (5) deriving its shape and configuration from said inner side (13) of said closed shutter (12) and that the shutter (12) in an open position exposes and gives admission to the surface (5), whereby an analysis of the exposed surface (5) unobstructed can be performed by an analytical unit.
2. An assaying vessel (2) according to claim 1 c h a r a c ¬ t e r i s e d i n, that the assaying vessel (2) has a design being substantially that of a truncated cone, tube or pyramid narrowing along its feeding direction (16).
3. An assaying vessel (2) according to claim 1 or 2 c h a r a c t e r i s e d i n, that location, shape and structure of a sample (15) surface (5) in the opening (10) is secured by means of one or more physical treatments inc¬ luding magnetisation, change of electric fields or field strengths and locally induced cooling, freezing or heating.
4. An assaying vessel (2) according to claim 3 c h a r a c ¬ t e r i s e d i n, that a physical treatment results in increased adhesion,* inner friction and/or viscosity.
5. An assaying vessel (2) according to any of the claims 1-4 c h a r a c t e r i s e d i n, that feeding, packing and/or compression of the sample material (15) is done by means of a vibration feeder (18).
6. An assaying vessel (2) according to claim 5 c h a r a c ¬ t e r i s e d i n, that the vibration feeder (18) is mechanically linked to the assaying vessel (2).
7. An assaying vessel (2) according to claim 5 c h a r a c ¬ t e r i s e d i n, that the vibration feeder (18) is an integrated part of the assaying vessel (2).
8. An assaying vessel '(2) according to any of the claims 1-7 c h a r a c t e r i s e d i , that the assaying vessel (2) includes mechanical devices for packing and/or compres¬ sion of the sample material (15).
9. An assaying vessel (2) according to any of the claims 1-8 c h a r a c t e r i s e d i n, that the shutter (12) is opened by means of a sliding longitudinal or traversal move¬ ment over an outer surface of the enveloping wall (8).
10. An assaying vessel (2) according to any of the claims 1-8 c h a r a c t e r i s e d i n, that the shutter (12) is opened by being lifted substantially straight upwards from its closed position to a height above the enveloping wall (8) substantially corresponding to its (12) material thick¬ ness, followed by 'a sliding longitudinal or traversal move¬ ment over an outer surface of the enveloping wall (8).
11. An assaying vessel (2) according to claim 9 or 10 c h a r a c t e r i s e d i n, that the shutter (12) is being upwards tilted before sliding or lifting said shutter (12) from its closed position.
12. An assaying vessel (2) according to any of the claims 1-8 c h a r a c t e r i s e d i n, that the shutter (12) is an external part of the enveloping wall (8), which part is possible to slide or turn longitudinally and/or traver- sally over the outer surface of said wall (8).
13. An assaying vessel (2) according to any of the claims 1-8 c h a r a c t e r i s e d i n, that the shutter (12) is attached to the enveloping wall (8) by means of one or more hinges and that it opens by being lifted to an angle of 45° to 120°, preferably 80° to 100°, in relation to the envelo¬ ping wall (8) .
14. An assaying vessel (2) according to any of the claims 1-13 c h a r a c t e r i s e d i n, that the shutter (12) is operated by means of a mechanical, pneumatic or hydraulic device.
15. An assaying vessel (2) according to claim 14 c h a r a c ¬ t e r i s e d i n, that device is a cylinder device (14).
16. A method for analysis of a free flowing non-liquid material, wherein an assaying vessel (2) according to any of claims 1-15 is used.
17. A method according to claim 16, wherein the free flowing non-liquid material is a powder, a paste, a gel and/or par¬ ticles.
18. A method according to claim 16 or 17, wherein the analysis is a measurement of reflection, photoemission, resonance, phase velocity, luminescence, phosphorescence and/or odour,
PCT/SE1995/000216 1994-03-11 1995-03-02 Assaying vessel WO1995024633A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU20882/95A AU2088295A (en) 1994-03-11 1995-03-02 Assaying vessel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK28394A DK170899B1 (en) 1994-03-11 1994-03-11 Sample container for use in the analysis of a material sample contained herein
DK283/94 1994-03-11

Publications (1)

Publication Number Publication Date
WO1995024633A1 true WO1995024633A1 (en) 1995-09-14

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DK (1) DK170899B1 (en)
WO (1) WO1995024633A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998019149A1 (en) * 1996-10-29 1998-05-07 Bran + Luebbe Gmbh Method and device for providing samples of bulk material for analysis of constituents
DE19714115A1 (en) * 1997-04-05 1998-10-15 Bran & Luebbe Device for the optical determination of ingredients

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983003138A1 (en) * 1982-03-05 1983-09-15 Diagnostic Sciences Inc Luminescence test apparatus and injector assembly therefor
WO1989009388A1 (en) * 1988-03-29 1989-10-05 Jesma-Matador A/S A method of effecting nir-analyses of successive material samples, and a system for carrying out the method
WO1993023731A1 (en) * 1992-05-14 1993-11-25 Jesma-Matador A/S A system for effecting automatic sample analysis and a method of establishing the system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983003138A1 (en) * 1982-03-05 1983-09-15 Diagnostic Sciences Inc Luminescence test apparatus and injector assembly therefor
WO1989009388A1 (en) * 1988-03-29 1989-10-05 Jesma-Matador A/S A method of effecting nir-analyses of successive material samples, and a system for carrying out the method
WO1993023731A1 (en) * 1992-05-14 1993-11-25 Jesma-Matador A/S A system for effecting automatic sample analysis and a method of establishing the system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998019149A1 (en) * 1996-10-29 1998-05-07 Bran + Luebbe Gmbh Method and device for providing samples of bulk material for analysis of constituents
DE19644871A1 (en) * 1996-10-29 1998-05-07 Bran & Luebbe Method and device for providing bulk samples for the analysis of ingredients
DE19714115A1 (en) * 1997-04-05 1998-10-15 Bran & Luebbe Device for the optical determination of ingredients
DE19714115C2 (en) * 1997-04-05 1999-12-23 Bran & Luebbe Device for the optical determination of contents of a free-flowing good

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Publication number Publication date
AU2088295A (en) 1995-09-25
DK170899B1 (en) 1996-03-04
DK28394A (en) 1995-09-12

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