EP0885357A1 - Pompe doseuse - Google Patents
Pompe doseuseInfo
- Publication number
- EP0885357A1 EP0885357A1 EP97907170A EP97907170A EP0885357A1 EP 0885357 A1 EP0885357 A1 EP 0885357A1 EP 97907170 A EP97907170 A EP 97907170A EP 97907170 A EP97907170 A EP 97907170A EP 0885357 A1 EP0885357 A1 EP 0885357A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- metering
- piston
- enclosure
- chamber
- drive
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 239000007788 liquid Substances 0.000 claims abstract description 46
- 239000000463 material Substances 0.000 claims description 15
- 239000004033 plastic Substances 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 239000011324 bead Substances 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 235000008504 concentrate Nutrition 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000013536 elastomeric material Substances 0.000 description 2
- 239000008233 hard water Substances 0.000 description 2
- 244000144972 livestock Species 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 208000006558 Dental Calculus Diseases 0.000 description 1
- 235000021559 Fruit Juice Concentrate Nutrition 0.000 description 1
- 241001122767 Theaceae Species 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/1037—Flap valves
- F04B53/1047—Flap valves the valve being formed by one or more flexible elements
- F04B53/106—Flap valves the valve being formed by one or more flexible elements the valve being a membrane
- F04B53/1067—Flap valves the valve being formed by one or more flexible elements the valve being a membrane fixed at its whole periphery and with an opening at its centre
- F04B53/107—Flap valves the valve being formed by one or more flexible elements the valve being a membrane fixed at its whole periphery and with an opening at its centre the opening normally being closed by a fixed element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
- F04B13/02—Pumps specially modified to deliver fixed or variable measured quantities of two or more fluids at the same time
Definitions
- the invention relates to improvements in metering pumps of the kind which include:
- An engine compartment comprising an engine piston, movable in alternating translation in a driving enclosure having an inlet and an outlet for the main liquid, and means for controlling the movements of the piston under the action of the main liquid;
- a metering compartment comprising a metering piston in a metering enclosure, linked to the driving enclosure and having an auxiliary liquid inlet, the metering piston being driven in alternating translation by the driving piston, and equipped with suction / discharge means, the assembly being such that the flow of auxiliary liquid delivered by the metering compartment is proportional, or substantially proportional, to the flow of main liquid.
- Dosing pumps of this type are known, in particular from EP-A-0 255 791, or from FR-B- 2 707 350. These pumps are particularly advantageous for the injection of an additive, consisting of auxiliary liquid, in the main liquid which also serves as the working fluid.
- the applications of such metering pumps are numerous. They make it possible, for example, to carry out a dosage of chlorine (auxiliary liquid) in water (main liquid), or a dosage of medication for livestock in the water of a drinker, or even to prepare drinks for water base (main liquid) and concentrate (fruit juice concentrate or tea concentrate) forming the auxiliary liquid.
- the proportion of auxiliary product to be added to the main liquid is low; it is relatively difficult to accurately maintain this proportion, in particular due to leaks, even minute, when using a conventional seal through which slides a rod, for example a connecting rod between the driving piston and the metering piston; such a seal does not prevent the entrainment by capillary action of minute quantities of liquid on either side of the seal.
- the metering accuracy is therefore distorted by these leaks, even very small.
- a dosing pump of the kind defined above in which the dosing enclosure has its own outlet orifice, separate from that of the driving enclosure, is characterized in that the dosing enclosure is isolated from the driving enclosure by an expandable tubular element, one end of which is tightly fixed to a part integral with the driving enclosure, and the other end of which is tightly fixed to the metering piston.
- the expandable tubular element is made of a material capable of withstanding variations in the pressure of the auxiliary liquid and the main liquid in the metering and driving chambers, so as to prevent any variation in the volume of the metering chamber. other than that due to the displacement of the metering piston. This ensures precise dosing.
- Such a material is constituted in particular by a suitable plastic material, in particular polypropylene.
- the expandable tubular element is advantageously formed by a sort of sheath, the end of which is fixed to the driving enclosure comprises an outer peripheral bead tightly sealed between a bearing surface of a tubular piece integral with the driving enclosure and an element of clamping fixed on this part, in particular by screwing.
- the other end of the sheath has an inner radial flange traversed by a central hole, this flange being locked against the metering piston by clamping between one end of this metering piston, and a support element integral with a drive rod of the working piston, which rod has a threaded end, which passes through the sealing washer and is screwed into the metering piston.
- the extensibility of the sheath ensuring sealing is advantageously obtained by folds on the cylindrical part of this sheath so as to achieve longitudinal extensibility by opening the folds.
- the longitudinal section of the sheath has a zig-zag shape, and the vertices of the zig-zag are arranged to constitute hinges with easy opening and closing, while the faces of the sheath, extending between two vertices of the zig-zag zag are rigid enough not to deform under pressure.
- the vertices of the zig-zag have a thickness that is less than the faces.
- Figure 1 of these drawings is a schematic vertical axial section of a metering pump according to the invention.
- FIG. 2 finally, is a partial vertical schematic section of an alternative embodiment of the dispenser of FIG. 1.
- a metering pump P or proportional metering, comprising an engine compartment 1 with a piston 2 movable in alternative translation in a driving enclosure 3.
- the piston 2 is of the differential type, but it could be of another type.
- the enclosure 3 has an inlet port 4 and an outlet port 5 for the main liquid.
- the enclosure 3 is closed in the upper part by a hat not shown.
- Distribution means D are provided for controlling the reciprocating movements of the piston under the action of the main liquid entering through the orifice 4.
- These distribution means D known for example from EP-A-0 255 791 or FR- B-2 707 350, are only very schematically represented and will not be described in detail. It is simply recalled that these means D can switch from a first to a second position and vice versa. The means D make it possible, in the first position, to move the piston 2 in the direction which moves it away from the inlet orifice 4 with admission of main liquid into the enclosure 1 and, in the second position, to make move the piston 2 in the opposite direction with delivery through the outlet orifice 5 of a determined volume of main liquid.
- the reversal of the distribution means D is mechanically controlled at the end of each outward or return stroke of the piston 2.
- the metering pump P also includes a metering compartment 6 with a metering piston 7 movable alternative translation in a metering enclosure 8, coaxial with the driving enclosure 1.
- the metering enclosure 8 is delimited by a cylindrical wall 9 provided, at its lower end, with a nozzle 10 to which a tube 11 is connected for the suction of the auxiliary product.
- the tube 11 plunges through its lower end, not shown, into a container containing the auxiliary liquid.
- a suction valve 12 is mounted in the nozzle 10. The valve 12 is capable of opening when the metering piston 7 moves away from the nozzle 10 and sucks in liquid, while the valve 12 closes when the piston 7 approaches the nozzle 10.
- the cylindrical wall 9 is fixed, coaxially, to a tubular part 13 open at its two axial ends, this part 13 being integral with the driving enclosure 3.
- the part 13 forms a kind of cylindrical sleeve comprising on its outer wall, in the upper part, a shoulder 14 coming into axial abutment against the upper end of a seat 15 provided in the bottom of the enclosure 3.
- the locking in axial translation of the part 13 on the seat 15 can be ensured by a screw 16, oriented transversely to the axis of the seat 15 and the internal end of which is engaged in a recess provided on the surface of the part 13.
- the lower end of the part 13 projects beyond the base of the enclosure 3 and is preferably provided with a thread 17 on its external surface.
- the wall 9 is provided, at the top of its external surface, with a thread 18.
- the assembly of the wall 9 and the part 13 is carried out using an intermediate threaded sleeve 19; the internal volume of the cylindrical wall 9 communicates with the internal space of the part 13.
- the metering piston 7 comprises a head 20 whose external diameter is equal to the diameter of the bore of the wall 9 and a piston body 21 of diameter more reduced extending from the head 20 to the driving enclosure 3.
- the head 20 is equipped with a means 22 of suction / discharge.
- This means 22 is constituted by an annular seal, for example with a square section, placed in a peripheral groove of the head 20.
- the piston 7 has a recess 23 extending parallel to its axial direction, from the groove in which the valve seal 22 is housed, on the side opposite to the suction valve 12.
- This recess 23 has a sufficient angular extent to give a certain freedom of movement to the part of the seal 22 located in said recess 23.
- the metering enclosure 8 has its own outlet orifice 24 separate from the outlet orifice 5 of the drive enclosure.
- the mixing can be carried out downstream of the pump P by joining the pipes connected respectively to the orifices 5 and 24.
- the body 21 of the piston 7 is connected by a rod 25 to the differential motor piston 2 which controls the movements of the metering piston 7.
- the lower end 26 of the rod 25 is threaded and is screwed into a hole coaxial threaded from the upper end of the piston body 21.
- the metering enclosure 8 is isolated from the driving enclosure 3 by sealing means E with total sealing which comprise an extensible tubular element T, one end 27 of which, namely the upper end according to the representation of the drawing, is fixed sealingly to the part 13 integral with the driving enclosure 3 and the other end 28 of which is fixed in leaktight manner to the metering piston 7.
- the extensible tubular element T is advantageously constituted by an extensible sheath 29, produced with a material sufficiently rigid to resist the external or internal hydraulic pressure.
- the extensibility of the sheath 29 is obtained by pleating the cylindrical part of this sheath so as to produce a zig-zag profile suitable for unfolding longitudinally, in the direction of the axis of the tube T, thanks to the hinges, or articulations , formed by the vertices 29a of the profile.
- the material of the sheath is sufficiently rigid so that the faces 29b of the folds, lying between two vertices 29a, do not deform significantly under the effect of hydraulic pressure. The dosage is therefore not distorted by variations in the volume of the metering enclosure 8 other than those due to the displacement of the piston 7.
- the flexibility of articulation of the tops 29a can be obtained by a thickness that is less than that of the faces 29b.
- the sheath 29 is preferably made of a plastic material, in particular polypropylene.
- the upper end 27 of the sheath 29 forms an external bead 30 clamped in an annular housing of the part 13, against a shoulder of this part, by a cap 31, with central opening for the passage of the rod 25, with interposition of 'a washer.
- the hat 31 is externally provided with a cylindrical rim with internal thread suitable for being screwed onto an external thread at the upper end of the part 13.
- the lower end 28 of the sheath 29 is constituted by a flange projecting radially inwards provided with a central hole for the passage of the end 26 of the rod 25. This flange is tightly sealed between the transverse end of the body 21 of piston 7 and a disc 32 secured to the rod 25.
- the assembly is arranged in such a way that the stroke of the head 20 of the piston 7 takes place exclusively inside the bore of the cylindrical wall 9.
- valve seal 22 performs a clearance allowing the passage of auxiliary liquid from the chamber located under the piston head 20 to the chamber located above this head, while the valve 12 is closed.
- the tightness provided by the extensible tubular element T is total so that the problems mentioned initially disappear, such as lime scale deposit on the rod 25 when dosing chlorine in hard water or the development of bacteria in the event that the main liquid is water and the auxiliary liquid is a concentrated sweet drink.
- the metering piston 107 has a head 120 with a diameter slightly greater than that of the body 121. The relative difference between the diameter of this head and that of the body 121 is smaller than in the example of FIG. 1.
- the metering piston 107 has, at its end remote from the engine compartment 101, an extension 34 of smaller diameter than the body 121.
- This extension 34 coaxial, passes through a flexible frustoconical sealing member 35 to penetrate rer in a cylindrical chamber 36 of diameter greater than that of the extension 34.
- This chamber 36 is located in the end piece 110.
- the axial length of the extension 34 is greater than the stroke of the piston 107 so that the extension 34 always passes through the frustoconical member 35.
- This sealing member 35 made for example of elastomeric material, has its small base facing the engine compartment 101, while its large base has an outer radial projecting flange which is clamped between a shoulder of the cylindrical wall 109 and another shoulder of the end piece 110.
- the frustoconical member 35 tends to open and allow the passing of auxiliary liquid sucked in by the metering piston 107 and its extension 34.
- the frusto-conical member 35 tends to apply sealingly against the extension 34 and prevents any flow of liquid from the metering enclosure 108 towards the chamber 36.
- the combination of the extension 34 and the sealing member 35 constitutes a suction means 112 equivalent to the valve 12 of FIG. 1.
- the overall operation of the metering pump of FIG. 2 is similar to that described in connection of Figure 1.
- the solution of the unwinding membrane or of the bellows made of elastomeric material may be suitable if one is satisfied with a seal without also wanting high dosing precision.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Vending Machines For Individual Products (AREA)
- Medicines Containing Plant Substances (AREA)
- Peptides Or Proteins (AREA)
- Glass Compositions (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Eye Examination Apparatus (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9602874A FR2745858B1 (fr) | 1996-03-07 | 1996-03-07 | Perfectionnenents apportes aux pompes doseuses |
| FR9602874 | 1996-03-07 | ||
| PCT/FR1997/000380 WO1997033090A1 (fr) | 1996-03-07 | 1997-03-04 | Pompe doseuse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0885357A1 true EP0885357A1 (fr) | 1998-12-23 |
| EP0885357B1 EP0885357B1 (fr) | 2002-08-07 |
Family
ID=9489954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97907170A Expired - Lifetime EP0885357B1 (fr) | 1996-03-07 | 1997-03-04 | Pompe doseuse |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US6129526A (fr) |
| EP (1) | EP0885357B1 (fr) |
| AT (1) | ATE221960T1 (fr) |
| AU (1) | AU1931697A (fr) |
| CA (1) | CA2243321C (fr) |
| DE (1) | DE69714578T2 (fr) |
| DK (1) | DK0885357T3 (fr) |
| ES (1) | ES2182033T3 (fr) |
| FR (1) | FR2745858B1 (fr) |
| PT (1) | PT885357E (fr) |
| WO (1) | WO1997033090A1 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012046162A1 (fr) * | 2010-10-08 | 2012-04-12 | Dosatron International | Pompe doseuse de liquide, et dispositif detecteur de la variation de pression pour une telle pompe |
| EP2853739A1 (fr) | 2013-09-26 | 2015-04-01 | Gerrit Jan Vink | Dispositif de dosage de liquide activé par la pression d'une conduite d'eau |
| US9303634B2 (en) | 2010-11-08 | 2016-04-05 | Dosatron International | Proportional dosimeter for metering an auxiliary liquid into a main liquid |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6676386B2 (en) * | 2001-09-18 | 2004-01-13 | Southern California Hydraulic Engineering, Inc. | Oilless air motor assembly for hydraulic pumps |
| FR2847950B1 (fr) * | 2002-11-28 | 2005-01-07 | Dosatron International | Machine hydraulique, en particulier moteur, a mouvement alternatif, et doseur comportant un tel moteur |
| RU2294453C1 (ru) * | 2005-08-08 | 2007-02-27 | Общество с ограниченной ответственностью фирма "Саратовгазприборавтоматика" | Плунжерное дозирующее устройство |
| US8632322B2 (en) * | 2006-01-30 | 2014-01-21 | Ingersoll-Rand Company | Plunger pump with atmospheric bellows |
| IL196598A0 (en) * | 2009-01-19 | 2009-09-22 | Anton Babushkin | Dosing pump |
| USD708293S1 (en) | 2013-03-11 | 2014-07-01 | Oms Investments, Inc. | Spraying device |
| US9079142B2 (en) | 2013-03-11 | 2015-07-14 | Oms Investments, Inc. | Hydraulic mixing device for sprayer system |
| FR3020839B1 (fr) | 2014-05-06 | 2016-05-13 | Dosatron International | Dispositif de surveillance du fonctionnement d'un doseur d'additif liquide dans un liquide principal, et doseur equipe d'un tel dispositif. |
| CN104074705B (zh) * | 2014-06-26 | 2017-01-18 | 成都西屋科技发展有限公司 | 一种电动计量柱塞泵 |
| FR3039862B1 (fr) * | 2015-08-06 | 2017-08-11 | Dosatron International | Dispositif de dosage proportionnel supervise et procedes de supervision d'une pompe doseuse |
| FR3042235B1 (fr) * | 2015-10-13 | 2020-03-27 | Dosatron International | Machine hydraulique et pompe doseuse reversible equipee d'une telle machine |
| CN105275766B (zh) * | 2015-11-30 | 2017-09-26 | 钱建存 | 压缩空气动力源配比泵 |
| KR102616463B1 (ko) | 2015-12-18 | 2023-12-26 | 그라코 미네소타 인크. | 벨로우즈 설치 및 보유 방법 |
| JP6853823B2 (ja) | 2015-12-18 | 2021-03-31 | グラコ ミネソタ インコーポレーテッド | 往復動ポンプ |
| FR3049993B1 (fr) * | 2016-04-07 | 2018-04-20 | Dosatron International | Mecanisme de dosage d'une pompe, procedes de verrouillage et de deverrouillage d'un tel mecanisme |
| FR3054004B1 (fr) * | 2016-07-13 | 2018-08-24 | Dosatron International | Mecanisme de dosage d'une pompe a dosage proportionnel, pompe et procede de mise en œuvre associes |
| FR3139604B1 (fr) * | 2022-09-13 | 2024-08-02 | Idromix | Mécanisme de dosage d’une pompe – Système de verrouillage et amélioration de la précision du réglage |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2329980A2 (fr) * | 1975-11-03 | 1977-05-27 | Economics Lab | Dispositif de dosage de fluide perfectionne |
| FR2333944A1 (fr) * | 1975-12-01 | 1977-07-01 | Ecole Nale Sup Arts Metiers | Moteur a vapeur a course alternative utilisant l'energie solaire |
| JPS57157078A (en) * | 1981-03-20 | 1982-09-28 | Nagano Keiki Seisakusho:Kk | Plunger pump |
| US4463663A (en) * | 1982-09-29 | 1984-08-07 | Hanson Jr Wallace A | Hydraulic cylinder assembly with a liquid recovery system |
| US4597322A (en) * | 1984-01-09 | 1986-07-01 | Moog Inc. | Seal assemblies |
| US4809731A (en) * | 1985-01-17 | 1989-03-07 | Frank A. Walton | Liquid injection apparatus having an external adjustor |
| FR2602282B1 (fr) * | 1986-07-31 | 1988-09-23 | Cloup Jean | Perfectionnement aux dispositifs d'injection d'un produit additif dose dans un fluide principal |
| US4738600A (en) * | 1987-03-05 | 1988-04-19 | Dresser-Rand Company | Lubricating system |
| NO170236C (no) * | 1989-04-06 | 1992-09-23 | Speeder As | Lineaermotor |
| AU630757B2 (en) * | 1989-11-04 | 1992-11-05 | Yoshikazu Kuze | Tubular member for sealing a reciprocating rod |
| US5055008A (en) * | 1990-01-29 | 1991-10-08 | Chemilizer Products, Inc. | Proportionating pump for liquid additive metering |
| US5243897A (en) * | 1992-04-07 | 1993-09-14 | Frank & Robyn Walton 1990 Family Trust | Magnetically actuated fluid motor |
| FR2707350B1 (fr) * | 1993-07-05 | 1995-09-01 | Ody Civile Ste Rech | Dispositif de commande des déplacements alternatifs d'un piston différentiel, et pompe doseuse comportant un tel dispositif. |
| US5415531A (en) * | 1994-04-06 | 1995-05-16 | Binks Manufacturing Company | Piston pump for fluent materials |
| US5513963A (en) * | 1994-08-16 | 1996-05-07 | Frank And Robyn Walton 1990 Family Trust | Direct action fluid motor and injection pump |
-
1996
- 1996-03-07 FR FR9602874A patent/FR2745858B1/fr not_active Expired - Fee Related
-
1997
- 1997-03-04 US US09/101,239 patent/US6129526A/en not_active Expired - Lifetime
- 1997-03-04 EP EP97907170A patent/EP0885357B1/fr not_active Expired - Lifetime
- 1997-03-04 AU AU19316/97A patent/AU1931697A/en not_active Abandoned
- 1997-03-04 DK DK97907170T patent/DK0885357T3/da active
- 1997-03-04 WO PCT/FR1997/000380 patent/WO1997033090A1/fr not_active Ceased
- 1997-03-04 AT AT97907170T patent/ATE221960T1/de active
- 1997-03-04 CA CA002243321A patent/CA2243321C/fr not_active Expired - Lifetime
- 1997-03-04 PT PT97907170T patent/PT885357E/pt unknown
- 1997-03-04 DE DE69714578T patent/DE69714578T2/de not_active Expired - Lifetime
- 1997-03-04 ES ES97907170T patent/ES2182033T3/es not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9733090A1 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012046162A1 (fr) * | 2010-10-08 | 2012-04-12 | Dosatron International | Pompe doseuse de liquide, et dispositif detecteur de la variation de pression pour une telle pompe |
| FR2965864A1 (fr) * | 2010-10-08 | 2012-04-13 | Dosatron International | Pompe doseuse de liquide, et dispositif detecteur de la variation de pression pour une telle pompe. |
| EA022129B1 (ru) * | 2010-10-08 | 2015-11-30 | Дозатрон Энтернасьональ | Дозирующий жидкостной насос и устройство для определения изменения давления для такого насоса |
| US9689765B2 (en) | 2010-10-08 | 2017-06-27 | Dosatron International | Liquid metering pump, and device for detecting the variation in pressure for such a pump |
| US9303634B2 (en) | 2010-11-08 | 2016-04-05 | Dosatron International | Proportional dosimeter for metering an auxiliary liquid into a main liquid |
| EP2853739A1 (fr) | 2013-09-26 | 2015-04-01 | Gerrit Jan Vink | Dispositif de dosage de liquide activé par la pression d'une conduite d'eau |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2182033T3 (es) | 2003-03-01 |
| FR2745858A1 (fr) | 1997-09-12 |
| AU1931697A (en) | 1997-09-22 |
| CA2243321C (fr) | 2003-09-23 |
| WO1997033090A1 (fr) | 1997-09-12 |
| US6129526A (en) | 2000-10-10 |
| CA2243321A1 (fr) | 1997-09-12 |
| EP0885357B1 (fr) | 2002-08-07 |
| FR2745858B1 (fr) | 2000-12-22 |
| DK0885357T3 (da) | 2002-12-02 |
| DE69714578D1 (de) | 2002-09-12 |
| ATE221960T1 (de) | 2002-08-15 |
| DE69714578T2 (de) | 2003-02-27 |
| PT885357E (pt) | 2002-11-29 |
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