EP0544549A1 - Pumpe zur Förderung von einem flüssigen oder pastösen Produkt, und Ausgabebehälter mit einer solchen Pumpe - Google Patents

Pumpe zur Förderung von einem flüssigen oder pastösen Produkt, und Ausgabebehälter mit einer solchen Pumpe Download PDF

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Publication number
EP0544549A1
EP0544549A1 EP92402897A EP92402897A EP0544549A1 EP 0544549 A1 EP0544549 A1 EP 0544549A1 EP 92402897 A EP92402897 A EP 92402897A EP 92402897 A EP92402897 A EP 92402897A EP 0544549 A1 EP0544549 A1 EP 0544549A1
Authority
EP
European Patent Office
Prior art keywords
product
air
pump
rod
piston
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
Application number
EP92402897A
Other languages
English (en)
French (fr)
Other versions
EP0544549B1 (de
Inventor
Gérard Joulia
Patrick Laffougère
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LOreal SA
Original Assignee
LOreal SA
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 LOreal SA filed Critical LOreal SA
Publication of EP0544549A1 publication Critical patent/EP0544549A1/de
Application granted granted Critical
Publication of EP0544549B1 publication Critical patent/EP0544549B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
    • B05B11/1025—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem a spring urging the outlet valve in its closed position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1087—Combination of liquid and air pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter

Definitions

  • the invention relates to a pump for dispensing a product, liquid or pasty, through a dispensing nozzle, a pump of the type which includes: a pump body intended to be mounted on a container containing the product to be distribute; a push button rises slidingly relative to the pump body and suitable for being pressed, against elastic return means, to cause the distribution of the product; a precompression valve provided to allow this distribution of the product only when sufficient pressure is reached; and air compression means provided for expelling air through the nozzle after dispensing the product in order to purge the outlet duct.
  • Such a pump aims to reduce the clogging problems which arise due to the drying of the product remaining in the distribution channel of the pump. This drawback is particularly important in the case of lacquer or cream pumps. In the case of a cream is added to the problem of plugging by drying, the problem of contamination of the remaining product.
  • FR-A-2 434 943 shows, in particular in FIG. 3, a pump of this type.
  • a liquid is precompressed in a chamber until a precompression valve opens allowing dispensing by spraying.
  • Pressing the push button also makes it possible to compress the air under this push button and, at the end of pressing the push button, a passage is opened to the compressed air which can expel the remaining liquid through the nozzle Release.
  • a pump according to this document is relatively complicated and, when it is at rest, the passage intended to open for compressed air can become blocked. Indeed, this passage is occupied by the liquid when the pump is at rest and there may be drying of this liquid leading to an obstruction of said passage. In addition, the amplitude of the push button stroke during which the compressed air ensures the liquid purge is relatively low.
  • the object of the invention is, above all, to provide a self-draining pump of the kind defined above which is of a simple construction, which makes it possible to carry out an effective purging of all the pipes through which the liquid passes, which facilitates the arrival the purge air in these pipes and which reduces the opportunities for contact between the liquid contained in the pump body and the purge air. It is further desirable that such a pump has a great smoothness of operation and allows to easily start the distribution.
  • a pump for the distribution of a liquid or pasty product, through a distribution nozzle of the kind defined above is characterized in that the air compression means are arranged to expel the air, through the nozzle, during the ascent phase of the push button under the action of the elastic return means, and that during the descent phase of the push button the above compression means carry out an air suction in order to its subsequent expulsion, while a dose of product is distributed through the nozzle.
  • the air compression means advantageously comprise means for admitting air into a compartment of the pump body and means making it possible to evacuate this air through the normal pipes of the pump when the push-button is raised. .
  • the air intake means are arranged to ensure the entry of air into the compartment at the end of depressing the push button.
  • the pressure relief valve is advantageously arranged to cut the communication between the air compression means and the product outlet channel when said valve allows the product to be dispensed through said outlet channel.
  • the pump body comprises a cylindrical part in which a rod can be moved in longitudinal sliding, linked to the push button, which has a channel longitudinal opening, in the upper part, into a pipe leading to the nozzle and communicating, at its lower part, by at least one radial passage with the lateral surface of the rod,
  • the pressure relief valve comprising a piston mounted to slide around the rod, at the level of the radial passage, between two stops, this piston sealingly separating the pump body into two compartments, namely an air compartment situated above the piston and a product compartment situated below the piston, the piston being able to take a high position for which the product compartment communicates with the aforesaid radial passage, while the air compartment is separated therefrom, and a low position for which the product compartment is separated from the radial passage while the air compartment is connected at this radial passage.
  • the product compartment is fitted with a suction valve and has a nozzle in the lower part to which a dip tube is connected.
  • the rod of the push-button advantageously comprises a collar located above the piston and a precompression spring is disposed between this collar and the piston, this spring tending to push the piston against the lower stop to keep it in the low position.
  • this precompression spring can be relatively stiff while when the product to be dispensed is a paste, this spring has a very low stiffness.
  • the elastic return means of the push button comprise a spring disposed between the lower end of the rod and the bottom of the pump body equipped with the product suction valve and the dip tube.
  • the rod of the push-button slides, in the upper part, in a sealed manner in a cap closing the pump body, and this rod comprises, towards the top, an air intake means allowing an air entry into the compartment. air pressure while pushing the button.
  • the air intake means may comprise a longitudinal groove formed on the upper part of the rod.
  • the air intake means comprises an upper part, of the rod, of smaller diameter sliding in a kind of sleeve extending upwards a cap closing the pump body.
  • the pump may include, between the air compartment cover and the fixing capsule on the container, an air intake channel allowing air to enter the container as the product is evacuated.
  • the lower part of the product compartment has a constricted zone capable of stopping the piston at the end of the push button depressing stroke in order to move it into the high position and facilitate priming of the pump by evacuation of the air. parasite in the product compartment at the start of pumping.
  • the invention also relates to a product dispenser container, liquid or pasty, equipped with a pump as defined above.
  • Figure 1 of these drawings is a vertical axial section of a self-draining pump, according to the invention, and of the upper part of a container equipped with such a pump, shown in the rest position.
  • Figure 2 shows, similarly to Figure 1, the pump while the push button is being pressed.
  • Figure 3 shows, similarly to Figure 1, the pump during the ascent of the push button.
  • Figure 4 is an axial vertical section of an alternative embodiment of the pump, shown in the rest position.
  • Figure 5 shows the pump of Figure 4 while the push button is being pressed.
  • Figure 6 finally, shows, in vertical axial section, the pump of Figure 4 at the end of depressing the push button, at the time of priming.
  • the pump 1 comprises a pump body 4 fixed to the neck 3 using a crimping ring 5.
  • the pump body 4 is constituted by a cylindrical part, open at its upper end and provided, on its upper periphery, with a rib 6 snap-fastening in a groove of a cap 7 covering the upper part of the body 4.
  • a sealing washer 8, forming an internal seal, is clamped between the upper end of the body 4 and the cap 7
  • This cap is provided with a collar 9 projecting radially outwards.
  • a sealing washer 10 is disposed between the upper face of the neck 3 and the flange 9, so as to be clamped between these elements during the crimping of the ring 5.
  • the upper face of the neck 3 advantageously comprises a circular sealing rib 11, in particular with a triangular cross section which is anchored in the washer 10.
  • the pump 1 also comprises a push button 12 fitted with a dispensing nozzle 13 provided on the side wall of this button, the upper surface 14 of which serves as a bearing surface for the user.
  • the button 12 is integral with a rod 15 slidingly mounted coaxially with the pump body 4 and sealingly passes through the central orifice of the washer 8, at least when the push-button 12 is in the high rest position illustrated on the figure 1.
  • the rod 15 comprises an axial longitudinal channel 16 opening, in the upper part, into a transverse conduit 17 of the push-button 12 communicating with the outlet orifice of the nozzle 13.
  • the channel 16 stops before the the lower end of the rod 15 and communicates radially, for example by two diametrically opposite passages 18, with the lateral surface of the rod 15.
  • the passages 18 are provided substantially at the mid-length of a cylindrical seat f of reduced diameter of the rod 15, this seat f being limited axially upwards by a shoulder 19 forming a stop and downwards by another shoulder 20, also forming stop.
  • a piston 21 is mounted around this bearing surface f of reduced diameter so as to be able to slide between a high position where the piston 21 is in abutment against the stop 19 and a low position where the piston 21 is in abutment against the shoulder 20.
  • the rod 15 comprises, above the piston 21, a flange 22 serving to support a precompression spring 23 which tends to apply the piston 21 against the lower shoulder 20.
  • the piston 21 divides the pump body 4 into two superimposed compartments, separated in a sealed manner by this piston 21.
  • the upper compartment 24 will be called the air compartment, while the lower compartment 25 will be called the product compartment.
  • the lower part 26 of the compartment 25 and therefore of the pump body 4 has a frustoconical shape and ends in an axial nozzle 27 to which is connected a dip tube 28 extending to the bottom of the container 2.
  • a ball suction valve 29 is provided at the end of the lower part 26.
  • the ball 29 is located inside a cylindrical cage 30 allowing the movement of the ball for opening the valve, but ensuring maintaining this ball in the vicinity of the seat provided on the internal surface of the part 26.
  • a return spring 31 is provided between the lower end of the rod 15, arranged in the form of a pin around which the upper end of the spring 31 is engaged, and the frustoconical part 26. The lower end of the spring 31 is engaged around the cylindrical cage 30.
  • the piston 21, combined with the passages 18 and the spring 23, constitutes a precompression valve.
  • the rod 15 is provided, on its outer surface, in the upper part, with a longitudinal groove 32 intended to allow entry of air, in compartment 24, when this groove, through its lower part, crosses the washer 8 as illustrated in FIG. 2.
  • the button 12 has a lower skirt 12 a which covers the cap 7, as illustrated in FIG. 2, at the end of depressing the push button 12.
  • the assembly of the rod 15 and of the push-button 12 is in the high rest position, under the action of the spring 31.
  • a dose of product P is located in the compartment 25.
  • the user To dispense the dose, the user, as illustrated in FIG. 2, exerts manual pressure on the push-button 12 so as to push it in and bring the rod 15 down into the pump body 4.
  • the valve 29 remains in the closed position and the piston 21, descending with the rod 15, compresses the dose of product contained in the compartment 25.
  • the air compartment 24 is closed at the top and the rise of the piston 21 compresses the air from the container 24 and expels it through the passages 18 , the pipe 16, the passage 17 and the nozzle 13, thereby purging all these conduits of the remains of the product P which may remain after the previous distribution phase.
  • the purge or sweep operation which takes place during the ascent phase is particularly effective and is spread over part of this ascent phase.
  • FIGS. 1 to 3 corresponds to a pump without air return in the container 2. If a pump with air return was to be used, an air return channel of the kind of that shown on Figures 4 to 6 would be provided between the washer 8 and the cap 7 to allow the entry of air into the container 2 as and when the product P.
  • the pump body 104 has a narrowing 33 at its base provided in such a way that before the end of the sinking of the rod 115, the piston 121 abuts against this narrowing 33. Thus, the piston 121 is stopped while the rod 115 can continue to descend. The piston 121 therefore moves upward relative to the rod 115 by compressing the spring 123 and causing communication the radial passages 118 with the compartment 125. The piston 121, which comes into abutment against the upper shoulder 119 cuts the communication between the air compartment 124 and the passages 118 and 116.
  • the rod 115 instead of having an air inlet groove similar to the groove 32 in the figures 1 to 3, has an upper part 115 a of smaller outer diameter than that of the lower part 115 b .
  • the part 115 b slides in leaktight fashion in the central opening of the washer 108; on the other hand, when the part 115 a arrives at the height of the washer 108, as illustrated in FIG. 6, an air inlet in the compartment 124 is created.
  • the cap 107 is extended upwards by a tubular sleeve 34 coaxial with the pump body 104, the internal diameter of which is slightly greater than the external diameter of the part 115 b .
  • This sleeve 34 ends, in the upper part, with a throttled part 35 against which the substantially frustoconical shoulder 36 comes into watertight support 36 between the parts 115 a and 115 b of the rod 115 in the high rest position of the push button 112.
  • the throttled part 35 has a cylindrical end whose internal diameter is slightly greater than the external diameter of the part 115 a so that an air passage is possible between the part 115 a and the internal surface of the part 35 when the rod 115 is pressed in and the shoulder 36 is no longer pressing against the throttled part 35.
  • An air passage 37 constituted for example by a groove formed in the internal face of the cap 107 is provided for communicating the internal volume of the sleeve 34 with the internal volume of the container 102, bypassing the upper edge of the pump body 104
  • the passage 37 constitutes an air intake channel for the container 102. This channel 37 is eliminated in the case where it is desired that the pump 101 operates without air intake.
  • the operation of the pump 101 is as follows.
  • the user by pressing the push button 112, lowers the rod 115 in the pump body.
  • the rod drives the piston 121 which remains in the low position, pressing against the shoulder 120, due to the action of the precompression spring 123.
  • the air trapped in compartment 125 is compressed.
  • the piston 121 is stopped against the throttle 33.
  • the rod 115 can continue to descend so that the piston 121 passes into the high position in abutment against the shoulder 119 which opens the passage 118 and allows the evacuation of the compressed air from the compartment 125 towards the atmosphere.
  • the rod 115 When the part 115 has a smaller diameter, the rod 115 reaches and exceeds, on descending, the washer 108, air can enter the air compartment 124.
  • the pump according to the invention can be used both for spraying a liquid and for dispensing a cream.
  • the precompression spring 23, 123 will be chosen with a high stiffness in order to guarantee a good quality of spraying.
  • the precompression spring 123 will be practically nonexistent and will have a very low stiffness.
  • the self-draining pump according to the invention ensures an expulsion of air in the same pipes and the same outlet nozzle as the product.
  • the residual product is thus expelled from the pump which avoids clogging, drying, contamination and other disadvantages of the same order.

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  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Noodles (AREA)
  • Closures For Containers (AREA)
EP92402897A 1991-11-26 1992-10-26 Pumpe zur Förderung von einem flüssigen oder pastösen Produkt, und Ausgabebehälter mit einer solchen Pumpe Expired - Lifetime EP0544549B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9114555 1991-11-26
FR9114555A FR2684081B1 (fr) 1991-11-26 1991-11-26 Pompe pour la distribution d'un produit, liquide ou pateux, et recipient distributeur equipe d'une telle pompe.

Publications (2)

Publication Number Publication Date
EP0544549A1 true EP0544549A1 (de) 1993-06-02
EP0544549B1 EP0544549B1 (de) 1996-04-10

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ID=9419324

Family Applications (1)

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EP92402897A Expired - Lifetime EP0544549B1 (de) 1991-11-26 1992-10-26 Pumpe zur Förderung von einem flüssigen oder pastösen Produkt, und Ausgabebehälter mit einer solchen Pumpe

Country Status (4)

Country Link
EP (1) EP0544549B1 (de)
DE (1) DE69209788T2 (de)
ES (1) ES2085594T3 (de)
FR (1) FR2684081B1 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1001366C2 (nl) * 1995-10-06 1997-04-08 Airspray Int Bv Inrichting voor het afgeven van een luchtvloeistofmengsel, in het bijzonder schuim en daarvoor bestemde bedieningseenheid.
WO1998018561A1 (en) * 1996-10-30 1998-05-07 The Procter & Gamble Company Dispensing devices
EP0847935A1 (de) * 1996-12-13 1998-06-17 L'oreal Betägigungsknopf für eine Sprühvorrichtung
WO2003099451A1 (es) * 2002-05-27 2003-12-04 Pecoso, S.L. Válvula dosificadora de substancias fluidas
ES2235564A1 (es) * 2002-05-27 2005-07-01 Pecoso, S.L. Valvula dosificadora de substancias fluidas.
WO2017078520A1 (en) 2015-11-04 2017-05-11 Gab Engineering & Development B.V. Storage holder for a dispenser
WO2017183974A1 (en) 2016-04-20 2017-10-26 Gab Engineering & Development B.V. Storage holder for a dispenser
EP3769852A1 (de) 2019-07-22 2021-01-27 Open Innovation 2 Go, SL Pumpenbetätigter spender mit integriertem schalter, system und verfahren zur fernüberwachung des produktverbrauchs dieses pumpenbetätigten spenders
EP3769851A1 (de) 2019-07-22 2021-01-27 Open Innovation 2 Go, SL Pumpenbetätigungskappe für pumpenspender, system und verfahren zur fernüberwachung des produktverbrauchs von der besagten pumpenbetätigungskappe

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4417488A1 (de) * 1994-05-19 1995-11-23 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung für Medien
FR2907034B1 (fr) * 2006-10-12 2008-12-26 Gerard Sannier Pompe a mousse resistante a la corrosion

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3583606A (en) * 1969-10-20 1971-06-08 Pittway Corp Self-cleaning valve
FR2434943A1 (fr) * 1978-08-31 1980-03-28 Wassilieff Victor Pompe comportant un dispositif autopurgeur
EP0309010A1 (de) * 1987-07-08 1989-03-29 Ing. Erich Pfeiffer GmbH & Co. KG Handbetätigbare Austragvorrichtung für Medien

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3583606A (en) * 1969-10-20 1971-06-08 Pittway Corp Self-cleaning valve
FR2434943A1 (fr) * 1978-08-31 1980-03-28 Wassilieff Victor Pompe comportant un dispositif autopurgeur
EP0309010A1 (de) * 1987-07-08 1989-03-29 Ing. Erich Pfeiffer GmbH & Co. KG Handbetätigbare Austragvorrichtung für Medien

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997013585A1 (en) * 1995-10-06 1997-04-17 Park Towers International B.V. Device for dispensing an air-liquid mixture, in particular foam, and operating unit intended therefor
NL1001366C2 (nl) * 1995-10-06 1997-04-08 Airspray Int Bv Inrichting voor het afgeven van een luchtvloeistofmengsel, in het bijzonder schuim en daarvoor bestemde bedieningseenheid.
AU709501B2 (en) * 1995-10-06 1999-09-02 Park Towers International B.V. Device for dispensing an air-liquid mixture, in particular foam, and operating unit intended therefor
US6053364A (en) * 1995-10-06 2000-04-25 Airspray N.V. Device for dispensing an air-liquid mixture, in particular foam, and operating unit intended therefor
US6216966B1 (en) 1996-10-30 2001-04-17 The Procter & Gamble Company Dispensing devices
WO1998018561A1 (en) * 1996-10-30 1998-05-07 The Procter & Gamble Company Dispensing devices
CN1096301C (zh) * 1996-10-30 2002-12-18 普罗克特和甘保尔公司 喷洒装置
FR2757138A1 (fr) * 1996-12-13 1998-06-19 Oreal Bouton poussoir pour dispositif de pulverisation
EP0847935A1 (de) * 1996-12-13 1998-06-17 L'oreal Betägigungsknopf für eine Sprühvorrichtung
WO2003099451A1 (es) * 2002-05-27 2003-12-04 Pecoso, S.L. Válvula dosificadora de substancias fluidas
ES2235564A1 (es) * 2002-05-27 2005-07-01 Pecoso, S.L. Valvula dosificadora de substancias fluidas.
CN100363114C (zh) * 2002-05-27 2008-01-23 佩可索有限公司 流体物质计量阀
US7357278B2 (en) 2002-05-27 2008-04-15 Pecoso, S.L. Metering valve for fluid substances
WO2017078520A1 (en) 2015-11-04 2017-05-11 Gab Engineering & Development B.V. Storage holder for a dispenser
WO2017183974A1 (en) 2016-04-20 2017-10-26 Gab Engineering & Development B.V. Storage holder for a dispenser
EP3769852A1 (de) 2019-07-22 2021-01-27 Open Innovation 2 Go, SL Pumpenbetätigter spender mit integriertem schalter, system und verfahren zur fernüberwachung des produktverbrauchs dieses pumpenbetätigten spenders
EP3769851A1 (de) 2019-07-22 2021-01-27 Open Innovation 2 Go, SL Pumpenbetätigungskappe für pumpenspender, system und verfahren zur fernüberwachung des produktverbrauchs von der besagten pumpenbetätigungskappe
WO2021013882A1 (en) 2019-07-22 2021-01-28 Openinnovation2go, S.L. A pump actuating cap for pump dispensers, system and method for remote monitoring of product consumption from said pump actuating cap
EP4236059A2 (de) 2019-07-22 2023-08-30 Openinnovation2go, S.L. Pumpenbetätigungskappe für pumpenspender, system und verfahren zur fernüberwachung des produktverbrauchs von der besagten pumpenbetätigungskappe

Also Published As

Publication number Publication date
DE69209788D1 (de) 1996-05-15
FR2684081A1 (fr) 1993-05-28
ES2085594T3 (es) 1996-06-01
FR2684081B1 (fr) 1994-01-28
DE69209788T2 (de) 1996-12-05
EP0544549B1 (de) 1996-04-10

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