US20020059996A1 - Sampling method and method for cleaning sampling apparatus - Google Patents
Sampling method and method for cleaning sampling apparatus Download PDFInfo
- Publication number
- US20020059996A1 US20020059996A1 US09/906,820 US90682001A US2002059996A1 US 20020059996 A1 US20020059996 A1 US 20020059996A1 US 90682001 A US90682001 A US 90682001A US 2002059996 A1 US2002059996 A1 US 2002059996A1
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- United States
- Prior art keywords
- filter
- sampling apparatus
- cleaning
- sample chamber
- cover
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- 238000005070 sampling Methods 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000004140 cleaning Methods 0.000 title claims abstract description 29
- 239000000126 substance Substances 0.000 claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 239000012530 fluid Substances 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 6
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- 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 object of the invention is a sampling apparatus in a continuous industrial process for taking a sample of the substance to be monitored, such as a pulp or fluid, the sampling apparatus being placed adjacent to the substance to be monitored, such as on the wall of the pulp tank or liquid tube, and the sampling apparatus including a sample chamber equipped with a cover and a filter for taking the sample from the substance to be monitored through the filter to the sample chamber.
- a sample of the substance to be monitored such as a pulp or fluid
- the sampling apparatus being placed adjacent to the substance to be monitored, such as on the wall of the pulp tank or liquid tube
- the sampling apparatus including a sample chamber equipped with a cover and a filter for taking the sample from the substance to be monitored through the filter to the sample chamber.
- the purpose of the invention is to eliminate the above-mentioned problem and provide a new sampling apparatus which does not have the above-mentioned disadvantages. It is characteristic of the sampling apparatus relating to the invention that the sample chamber of the sampling apparatus incorporates a closing device, by means of which the connection to the sample chamber from the tank or the like containing the substance to be monitored can be closed, leaving the filter in the sample chamber in a space between the cover and the closing device. Because the filter of the sampling apparatus is cross-directionally smaller than the opening of the sample chamber cover, the filter can be pulled out of the sample chamber after opening the cover of the sample chamber.
- the body of the sampling apparatus's sample chamber is mainly cylindrical, and the cylindrical filter can be fitted concentrically inside the cylindrical body.
- the closing device of the sampling apparatus is an interior cover, which is situated at the end of the cylindrical body that is in the tank or the like containing the substance to be monitored, and the interior cover can be moved in the direction of the axis of the body's cylinder and pushed against the end of the body to close the sample chamber.
- the interior cover is closed by pulling it against the end of the body by means of actuator cylinders, which are situated between the body and the interior cover.
- the actuators can be, for example, pneumatic or hydraulic cylinders.
- the most advantageous number of actuator cylinders placed at regular intervals on the circumference of the body cylinder is three.
- the linear motion of the interior cover has been further ensured using three guide bars, which have been placed on the circumference between the actuator cylinders.
- the cylindrical filter is fastened to the interior cover with a screw or the like in such a way that the filter can be unfastened and removed for cleaning.
- the closing device of the sampling apparatus incorporates a fixed interior cover or a similar part, which is situated near the end of the cylindrical body that is in the tank or the like containing the substance to be monitored.
- the closing device has a cylindrical slide, which is moved, for example, by means of a pressure medium and which moves in the direction of the cylindrical body's axis and presses against the fixed interior cover when closing the device.
- Another object of the invention is a sampling method in a continuous industrial process which does not have the disadvantages of the known methods.
- the sampling apparatus is placed adjacent to the substance to be monitored, such as on the wall of the pulp tank or liquid tube, and a fluid sample of the substance to be monitored is taken through a filter into the sample chamber.
- the sample chamber of the sampling apparatus is at least partly located inside the tank or the like containing the substance to be monitored, in which case the pressure in the tank presses a fluid sample of the substance to be monitored through the filter into the sample chamber of the sampling apparatus.
- the sampling method is continuous in such a way that fluid samples of the substance to be monitored are continuously obtained without disturbing the process taking place in the tank.
- the substance to be monitored such as, for example, paper pulp
- the sampling apparatus located in conjunction with the tank or the like containing the substance to be monitored, and the pressure in the tank presses the pulp to be monitored against the filter of the sampling apparatus.
- No suction is used in the method, but instead, normal pressure conditions in the process are utilised.
- a pressure difference is not produced separately, as there already exists a pressure difference in the process due to the overpressure prevailing in the tank.
- the filter prevents the passage of solid particles of a predetermined size, but the liquid phase and the colloidal sample phase of the pulp to be monitored are passed through the filter into the sample chamber. From there the sample to be analysed is passed on further for examination.
- a further objective of the invention is a method for cleaning the sampling apparatus in a continuous industrial process in which samples are continuously taken from the substance to be monitored, such as a pulp or fluid, and in which a sampling apparatus equipped with a cover is placed adjacent to the substance to be monitored, such as on the wall of the pulp tank or liquid tube in such a way that the fluid sample is taken from the substance to be monitored through the filter into the sample chamber of the sampling apparatus.
- a sampling apparatus equipped with a cover is placed adjacent to the substance to be monitored, such as on the wall of the pulp tank or liquid tube in such a way that the fluid sample is taken from the substance to be monitored through the filter into the sample chamber of the sampling apparatus.
- the filter of the sampling apparatus is usually the most problematic part of the apparatus because the pulp in the tank tends to clog the filter.
- a generally known method is to arrange a system for blowing air through the filter from the sample chamber towards the pulp tank. In such a case the pulp fibres caught in the filter are released from the surface of the filter and they return to the pulp.
- the filter usually gets so badly clogged, that no air blowing or rinsing procedures can open the pores of the filter. In such a case, the filter needs to be cleaned more thoroughly. This is usually not possible before the process is discontinued and the pulp tank emptied.
- the purpose of this invention is to create a method through which the filter of the sampling apparatus can be cleaned without stopping the process. It is characteristic of the cleaning method relating to the invention that the cleaning of the sampling apparatus's filter comprises the following steps,
- the closing device which is situated at that end where the tank or the like containing the substance to be monitored is, is closed, in which case the process in the tank is not disturbed, but the filter remains in the sample chamber in the space between the cover and the closing device,
- the filter is pushed back to its place, the cover closed and the closing device opened, after which the sampling apparatus is again available for continuous use.
- the cleaning of the filter comprises the following steps,
- the closing device of the sampling apparatus is closed by pushing the interior cover that can be moved in the direction of the axis of the cylindrical body against the end of the body,
- the filter is pulled out for cleaning.
- the cleaning of the filter comprises the following steps,
- the closing device of the sampling apparatus is closed by pushing the cylindrical slide situated inside the body and moving in the direction of its axis against the fixed interior cover,
- the cover of the sample chamber is opened, in which case the filter supported between the cover and the fixed interior cover is released and can be removed for cleaning.
- FIG. 1 shows a sectional view of the sampling apparatus relating to the invention with the closing device open, seen from the side.
- FIG. 2 corresponds to FIG. 1 and shows the sampling apparatus with the closing device closed.
- FIG. 3 corresponds to FIG. 1 and shows another embodiment of the sampling apparatus.
- FIG. 4 corresponds to FIG. 3 and shows the sampling apparatus with the closing device closed.
- FIG. 1 shows one embodiment of the sampling apparatus relating to the invention.
- the body of the sampling apparatus is a cylinder 10 , which has been fitted in the opening of the wall 12 of the tank containing pulp to be sampled 11 .
- the cylinder 10 has been closed with a cover 13 from outside the tank in such a way that a sample chamber 14 is formed inside the cylinder 10 .
- the fluid sample that is separated from the pulp 11 is taken through the cylindrical filter 15 into the sample chamber 14 .
- the fluid 16 forming the sample is at the bottom of the cylinder.
- FIG. 1 does not show the piping relating to the sampling method through which the sample is fed on into the analysing apparatus.
- the filter 15 of the sampling apparatus is cleaned by first closing the closing device, which closes the connection between the tank and the sample chamber 14 .
- the closing device is the interior cover 18 , which closes the sample chamber 14 from inside the tank.
- the actuator cylinders 20 function by means of a pressure medium, which can be a liquid or a gas.
- a closed space is formed in the sample chamber 14 between the cover 13 and the interior cover 18 .
- the filter 15 is attached to the interior cover 18 with a screw 17 in such a way that when the cover 18 is moved, the filter 15 moves with it, following the inner surface of the cylinder 10 .
- the closed position of the closing device is shown in FIG. 2.
- FIG. 2 shows the sampling apparatus in FIG. 1 with the closing device closed.
- the sample chamber 14 is closed with an interior cover 18 on the inside of the tank.
- the sample chamber 14 is emptied and the cover 13 located outside the tank is opened.
- the screw 17 attaching the filter 15 to the interior cover 18 is undone and the filter is pulled out for cleaning.
- the abovementioned procedure is performed in reverse order.
- the sampling apparatus is again ready for taking samples. The removal and cleaning of the filter do not in any way disturb the process which is going on in the tank.
- FIG. 3 shows another embodiment of the sampling apparatus.
- the body of the sampling apparatus is also a cylinder 10 , which has been fitted into the opening of the wall 12 of the tank containing the sample pulp 11 , and the cylinder 10 has been closed from outside the tank with a cover 13 .
- a fixed cover 21 has been attached to the cylinder 10 by means of bars 22 .
- the filter 15 has been pressed between the fixed cover 21 inside the tank and the cover 13 closing from the outside.
- the sealings 23 at both ends of the filter 15 seal the ends in such a way that the sample chamber 14 is formed completely inside the filter 15 .
- the fluid sample is passed through the cylindrical filter 15 to the sample chamber 14 .
- the sample fluid 16 that is separated from the pulp 11 is at the bottom of the filter 15 .
- FIG. 4 shows the sampling apparatus in FIG. 3 with the closing device closed.
- the cylindrical slide 24 is pushed against the fixed interior cover 21 , after which the connection from inside the tank to the sample chamber 14 is closed. After that, the sample chamber 14 is emptied and the cover 13 opened.
- the filter 15 is pulled out and cleaned. After cleaning, the above-mentioned procedure is performed in reverse order. After the cylindrical slide 24 has been pulled away, the sampling apparatus is again ready for taking samples. In this embodiment, too, the removal and cleaning of the filter did not disturb the process which was going on in the tank.
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Health & Medical 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)
Abstract
Description
- This application is a division of application Ser. No. 09/319,461 filed Jun. 7, 1999, which is a 371 of PCT/FI97/00766.
- The object of the invention is a sampling apparatus in a continuous industrial process for taking a sample of the substance to be monitored, such as a pulp or fluid, the sampling apparatus being placed adjacent to the substance to be monitored, such as on the wall of the pulp tank or liquid tube, and the sampling apparatus including a sample chamber equipped with a cover and a filter for taking the sample from the substance to be monitored through the filter to the sample chamber.
- In continuous industrial processes, for example, in the paper industry in processing paper pulp, it is necessary in order to control the process to take samples at different stages of the process. Different sampling apparatuses and sampling methods have been developed for this purpose. The simplest way of taking a sample in a continuous process is to install a tap, for example, in the pulp tank or a tube connected to it. When a sample is needed the tap is turned on. After the sample has been taken the tap is turned off.
- However, the known sampling apparatuses have disadvantages. For example, a sample cannot be taken of a thick pulp using a tap, because the pulp clogs the tap. Neither do filters located in conjunction with the tap eliminate these problems, because then the filters easily get clogged.
- The purpose of the invention is to eliminate the above-mentioned problem and provide a new sampling apparatus which does not have the above-mentioned disadvantages. It is characteristic of the sampling apparatus relating to the invention that the sample chamber of the sampling apparatus incorporates a closing device, by means of which the connection to the sample chamber from the tank or the like containing the substance to be monitored can be closed, leaving the filter in the sample chamber in a space between the cover and the closing device. Because the filter of the sampling apparatus is cross-directionally smaller than the opening of the sample chamber cover, the filter can be pulled out of the sample chamber after opening the cover of the sample chamber.
- According to one advantageous embodiment of the invention, the body of the sampling apparatus's sample chamber is mainly cylindrical, and the cylindrical filter can be fitted concentrically inside the cylindrical body.
- According to another advantageous embodiment, the closing device of the sampling apparatus is an interior cover, which is situated at the end of the cylindrical body that is in the tank or the like containing the substance to be monitored, and the interior cover can be moved in the direction of the axis of the body's cylinder and pushed against the end of the body to close the sample chamber. In such a case, the interior cover is closed by pulling it against the end of the body by means of actuator cylinders, which are situated between the body and the interior cover.
- The actuators can be, for example, pneumatic or hydraulic cylinders. The most advantageous number of actuator cylinders placed at regular intervals on the circumference of the body cylinder is three. The linear motion of the interior cover has been further ensured using three guide bars, which have been placed on the circumference between the actuator cylinders.
- According to a third advantageous embodiment, the cylindrical filter is fastened to the interior cover with a screw or the like in such a way that the filter can be unfastened and removed for cleaning.
- According to a fourth advantageous embodiment of the invention the closing device of the sampling apparatus incorporates a fixed interior cover or a similar part, which is situated near the end of the cylindrical body that is in the tank or the like containing the substance to be monitored. The closing device has a cylindrical slide, which is moved, for example, by means of a pressure medium and which moves in the direction of the cylindrical body's axis and presses against the fixed interior cover when closing the device.
- Another object of the invention is a sampling method in a continuous industrial process which does not have the disadvantages of the known methods. According to the method, to take a sample of the substance to be monitored, such as a pulp or fluid, the sampling apparatus is placed adjacent to the substance to be monitored, such as on the wall of the pulp tank or liquid tube, and a fluid sample of the substance to be monitored is taken through a filter into the sample chamber.
- It is characteristic of the method relating to the invention that the sample chamber of the sampling apparatus is at least partly located inside the tank or the like containing the substance to be monitored, in which case the pressure in the tank presses a fluid sample of the substance to be monitored through the filter into the sample chamber of the sampling apparatus.
- According to one advantageous embodiment of the sampling method, the sampling method is continuous in such a way that fluid samples of the substance to be monitored are continuously obtained without disturbing the process taking place in the tank.
- In the method, the substance to be monitored, such as, for example, paper pulp, is taken into the sampling apparatus located in conjunction with the tank or the like containing the substance to be monitored, and the pressure in the tank presses the pulp to be monitored against the filter of the sampling apparatus. No suction is used in the method, but instead, normal pressure conditions in the process are utilised. A pressure difference is not produced separately, as there already exists a pressure difference in the process due to the overpressure prevailing in the tank. The filter prevents the passage of solid particles of a predetermined size, but the liquid phase and the colloidal sample phase of the pulp to be monitored are passed through the filter into the sample chamber. From there the sample to be analysed is passed on further for examination.
- A further objective of the invention is a method for cleaning the sampling apparatus in a continuous industrial process in which samples are continuously taken from the substance to be monitored, such as a pulp or fluid, and in which a sampling apparatus equipped with a cover is placed adjacent to the substance to be monitored, such as on the wall of the pulp tank or liquid tube in such a way that the fluid sample is taken from the substance to be monitored through the filter into the sample chamber of the sampling apparatus.
- The filter of the sampling apparatus is usually the most problematic part of the apparatus because the pulp in the tank tends to clog the filter. In the known apparatuses, it is usually not possible to remove the filter while the process is under way, so there are different methods for cleaning the filter. A generally known method is to arrange a system for blowing air through the filter from the sample chamber towards the pulp tank. In such a case the pulp fibres caught in the filter are released from the surface of the filter and they return to the pulp.
- At some stage, however, the filter usually gets so badly clogged, that no air blowing or rinsing procedures can open the pores of the filter. In such a case, the filter needs to be cleaned more thoroughly. This is usually not possible before the process is discontinued and the pulp tank emptied.
- The purpose of this invention is to create a method through which the filter of the sampling apparatus can be cleaned without stopping the process. It is characteristic of the cleaning method relating to the invention that the cleaning of the sampling apparatus's filter comprises the following steps,
- the closing device, which is situated at that end where the tank or the like containing the substance to be monitored is, is closed, in which case the process in the tank is not disturbed, but the filter remains in the sample chamber in the space between the cover and the closing device,
- the sample chamber is emptied, the cover opened and the filter pulled out for cleaning,
- the filter is pushed back to its place, the cover closed and the closing device opened, after which the sampling apparatus is again available for continuous use.
- According to one advantageous embodiment of the invention the cleaning of the filter comprises the following steps,
- the closing device of the sampling apparatus is closed by pushing the interior cover that can be moved in the direction of the axis of the cylindrical body against the end of the body,
- the sample chamber is emptied, the cover opened and the filter detached from the interior cover,
- the filter is pulled out for cleaning.
- According to another advantageous embodiment of the invention the cleaning of the filter comprises the following steps,
- the closing device of the sampling apparatus is closed by pushing the cylindrical slide situated inside the body and moving in the direction of its axis against the fixed interior cover,
- the cover of the sample chamber is opened, in which case the filter supported between the cover and the fixed interior cover is released and can be removed for cleaning.
- In the following, the invention is described using examples with reference to the accompanying drawings, in which
- FIG. 1 shows a sectional view of the sampling apparatus relating to the invention with the closing device open, seen from the side.
- FIG. 2 corresponds to FIG. 1 and shows the sampling apparatus with the closing device closed.
- FIG. 3 corresponds to FIG. 1 and shows another embodiment of the sampling apparatus.
- FIG. 4 corresponds to FIG. 3 and shows the sampling apparatus with the closing device closed.
- FIG. 1 shows one embodiment of the sampling apparatus relating to the invention. The body of the sampling apparatus is a
cylinder 10, which has been fitted in the opening of thewall 12 of the tank containing pulp to be sampled 11. Thecylinder 10 has been closed with acover 13 from outside the tank in such a way that asample chamber 14 is formed inside thecylinder 10. The fluid sample that is separated from the pulp 11 is taken through thecylindrical filter 15 into thesample chamber 14. In FIG. 1, the fluid 16 forming the sample is at the bottom of the cylinder. - From the pulp11 in the tank, new fluid is continuously filtered through the
filter 15 into thesample chamber 14 due to the overpressure prevailing in the tank. Therefore, samples can continuously be taken for analysis from thesample chamber 14, although the process involving the pulp 11 in the tank is in progress. Thus a continuous-working sampling apparatus that does not disturb the process is created. FIG. 1 does not show the piping relating to the sampling method through which the sample is fed on into the analysing apparatus. - The
filter 15 of the sampling apparatus is cleaned by first closing the closing device, which closes the connection between the tank and thesample chamber 14. In the example of one embodiment shown in FIG. 1, the closing device is theinterior cover 18, which closes thesample chamber 14 from inside the tank. With theactuator cylinders 20, theinterior cover 18, guided by thebars 19, is pulled against thecylinder 10. Theactuator cylinders 20 function by means of a pressure medium, which can be a liquid or a gas. In such a case, a closed space is formed in thesample chamber 14 between thecover 13 and theinterior cover 18. Thefilter 15 is attached to theinterior cover 18 with ascrew 17 in such a way that when thecover 18 is moved, thefilter 15 moves with it, following the inner surface of thecylinder 10. The closed position of the closing device is shown in FIG. 2. - FIG. 2 shows the sampling apparatus in FIG. 1 with the closing device closed. In such a case, the
sample chamber 14 is closed with aninterior cover 18 on the inside of the tank. After that thesample chamber 14 is emptied and thecover 13 located outside the tank is opened. Thescrew 17 attaching thefilter 15 to theinterior cover 18 is undone and the filter is pulled out for cleaning. After cleaning, the abovementioned procedure is performed in reverse order. After theinterior cover 18 has been reopened, the sampling apparatus is again ready for taking samples. The removal and cleaning of the filter do not in any way disturb the process which is going on in the tank. - FIG. 3 shows another embodiment of the sampling apparatus. In it, the body of the sampling apparatus is also a
cylinder 10, which has been fitted into the opening of thewall 12 of the tank containing the sample pulp 11, and thecylinder 10 has been closed from outside the tank with acover 13. Inside the tank, a fixedcover 21 has been attached to thecylinder 10 by means ofbars 22. Thefilter 15 has been pressed between the fixedcover 21 inside the tank and thecover 13 closing from the outside. Thesealings 23 at both ends of thefilter 15 seal the ends in such a way that thesample chamber 14 is formed completely inside thefilter 15. The fluid sample is passed through thecylindrical filter 15 to thesample chamber 14. In FIG. 3, thesample fluid 16 that is separated from the pulp 11 is at the bottom of thefilter 15. - When the
filter 15 of the sampling apparatus in FIG. 3 needs to be cleaned more thoroughly, in this solution, too, the connection from the pulp 11 inside the tank to thesample chamber 14 must be closed. This is done by means of a specialcylindrical slide 24, which can be moved by means of a pressure medium. Thecylindrical slide 24 is pushed against the fixedinterior cover 21, and thesample chamber 14 is closed. The closed position of the closing device is shown in FIG. 4. - FIG. 4 shows the sampling apparatus in FIG. 3 with the closing device closed. The
cylindrical slide 24 is pushed against the fixedinterior cover 21, after which the connection from inside the tank to thesample chamber 14 is closed. After that, thesample chamber 14 is emptied and thecover 13 opened. Thefilter 15 is pulled out and cleaned. After cleaning, the above-mentioned procedure is performed in reverse order. After thecylindrical slide 24 has been pulled away, the sampling apparatus is again ready for taking samples. In this embodiment, too, the removal and cleaning of the filter did not disturb the process which was going on in the tank. - It is obvious to a person skilled in the art that the different embodiments of the invention may vary within the scope of the claims presented below.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/906,820 US6432265B1 (en) | 1996-12-10 | 2001-07-18 | Sampling method and method for cleaning sampling apparatus |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI964929 | 1996-12-10 | ||
FI964929A FI109482B (en) | 1996-12-10 | 1996-12-10 | Sampler, sampling method and method of purifying the sampling device |
US09/319,461 US6287416B1 (en) | 1996-12-10 | 1997-12-09 | Sampling apparatus with removable filter for cleaning |
US09/906,820 US6432265B1 (en) | 1996-12-10 | 2001-07-18 | Sampling method and method for cleaning sampling apparatus |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FI1997/000766 Division WO1998026272A1 (en) | 1996-12-10 | 1997-12-09 | Sampling apparatus, sampling method and method for cleaning sampling apparatus |
US09/319,461 Division US6287416B1 (en) | 1996-12-10 | 1997-12-09 | Sampling apparatus with removable filter for cleaning |
Publications (2)
Publication Number | Publication Date |
---|---|
US20020059996A1 true US20020059996A1 (en) | 2002-05-23 |
US6432265B1 US6432265B1 (en) | 2002-08-13 |
Family
ID=8547236
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/319,461 Expired - Fee Related US6287416B1 (en) | 1996-12-10 | 1997-12-09 | Sampling apparatus with removable filter for cleaning |
US09/906,820 Expired - Fee Related US6432265B1 (en) | 1996-12-10 | 2001-07-18 | Sampling method and method for cleaning sampling apparatus |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/319,461 Expired - Fee Related US6287416B1 (en) | 1996-12-10 | 1997-12-09 | Sampling apparatus with removable filter for cleaning |
Country Status (6)
Country | Link |
---|---|
US (2) | US6287416B1 (en) |
EP (1) | EP1015867A1 (en) |
AU (1) | AU5223298A (en) |
CA (1) | CA2273280A1 (en) |
FI (1) | FI109482B (en) |
WO (1) | WO1998026272A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013098487A1 (en) * | 2011-12-30 | 2013-07-04 | Kemira Oyj | Method and device for taking samples and use of the method and the device |
WO2014158402A1 (en) * | 2013-03-13 | 2014-10-02 | Ecolab Usa Inc. | Solid water separation to sample spray water from a continuous caster |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE520297C2 (en) * | 2001-11-28 | 2003-06-24 | Holmen Ab | Process and apparatus system for the extraction of liquid for analysis purposes from cellulose pulp with high pulp concentration |
FI20065443L (en) * | 2006-06-27 | 2008-02-14 | Metso Paper Inc | Method and device for taking a sample from pulp suspension |
US9778149B2 (en) | 2014-05-02 | 2017-10-03 | Swagelok Company | Fluid sample system and method |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE342325B (en) * | 1970-06-17 | 1972-01-31 | Kaelle Regulatorer Ab | |
FI57663C (en) * | 1978-03-10 | 1980-09-10 | Kajaani Oy | PROCEDURE FOR PROVISION |
US4683207A (en) * | 1984-12-05 | 1987-07-28 | Eli Lilly And Company | Culture monitoring system |
US4880973A (en) * | 1988-07-15 | 1989-11-14 | Reynolds John D | Ground radon flux sampling device |
FI95839C (en) * | 1993-02-19 | 1996-03-25 | Keskuslaboratorio | Method and apparatus for sampling solid media |
US6062073A (en) * | 1998-09-08 | 2000-05-16 | Westbay Instruments, Inc. | In situ borehole sample analyzing probe and valved casing coupler therefor |
-
1996
- 1996-12-10 FI FI964929A patent/FI109482B/en active
-
1997
- 1997-12-09 AU AU52232/98A patent/AU5223298A/en not_active Abandoned
- 1997-12-09 US US09/319,461 patent/US6287416B1/en not_active Expired - Fee Related
- 1997-12-09 WO PCT/FI1997/000766 patent/WO1998026272A1/en not_active Application Discontinuation
- 1997-12-09 EP EP97947046A patent/EP1015867A1/en not_active Withdrawn
- 1997-12-09 CA CA002273280A patent/CA2273280A1/en not_active Abandoned
-
2001
- 2001-07-18 US US09/906,820 patent/US6432265B1/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013098487A1 (en) * | 2011-12-30 | 2013-07-04 | Kemira Oyj | Method and device for taking samples and use of the method and the device |
WO2014158402A1 (en) * | 2013-03-13 | 2014-10-02 | Ecolab Usa Inc. | Solid water separation to sample spray water from a continuous caster |
Also Published As
Publication number | Publication date |
---|---|
FI109482B (en) | 2002-08-15 |
US6432265B1 (en) | 2002-08-13 |
CA2273280A1 (en) | 1998-06-18 |
AU5223298A (en) | 1998-07-03 |
FI964929A0 (en) | 1996-12-10 |
WO1998026272A1 (en) | 1998-06-18 |
US6287416B1 (en) | 2001-09-11 |
EP1015867A1 (en) | 2000-07-05 |
FI964929A (en) | 1998-06-11 |
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