WO1991008451A1 - Device for automatically sampling, weighing and mixing various expensive liquids - Google Patents

Device for automatically sampling, weighing and mixing various expensive liquids Download PDF

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Publication number
WO1991008451A1
WO1991008451A1 PCT/FR1990/000850 FR9000850W WO9108451A1 WO 1991008451 A1 WO1991008451 A1 WO 1991008451A1 FR 9000850 W FR9000850 W FR 9000850W WO 9108451 A1 WO9108451 A1 WO 9108451A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
liquids
weighing
pump body
liquid
Prior art date
Application number
PCT/FR1990/000850
Other languages
French (fr)
Inventor
Bernard Vilbert
Original Assignee
Laboratoire & Informatique
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 Laboratoire & Informatique filed Critical Laboratoire & Informatique
Publication of WO1991008451A1 publication Critical patent/WO1991008451A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/02—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/712—Feed mechanisms for feeding fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/02—Burettes; Pipettes
    • B01L3/0289—Apparatus for withdrawing or distributing predetermined quantities of fluid
    • B01L3/0293—Apparatus for withdrawing or distributing predetermined quantities of fluid for liquids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G17/00—Apparatus for or methods of weighing material of special form or property
    • G01G17/04—Apparatus for or methods of weighing material of special form or property for weighing fluids, e.g. gases, pastes
    • G01G17/06—Apparatus for or methods of weighing material of special form or property for weighing fluids, e.g. gases, pastes having means for controlling the supply or discharge

Definitions

  • the subject of the present invention is a device intended to collect, weigh and automatically mix, according to the data supplied for example by a computer, various and precious liquids, under very strict non-contamination conditions and precise weight dosing.
  • the device according to the invention makes it possible to avoid these errors, as well as the risks inherent in the handling of very expensive and sometimes corrosive products, by guaranteeing on the one hand an optimal economy of these products by a greater safety and a greater precision of handling, on the other hand a great speed of execution, as well as better health safety of the personnel, whose contact with ethyl vapors is reduced.
  • the device according to the invention comprises modular elements which can be juxtaposed as a function of demand, each element or module comprising a multiplicity of pumping or transfer blocks, each of these blocks being integral with a bottle or other container containing the liquid material to be transfer to a bottle or test tube.
  • the device according to the invention is characterized by the implementation, in each pumping block, of a peristaltic pump incorporating neither motor nor rotor, the latter being mounted together and integral with a mobile robot arm comprising a clamp to hold the bottle or test tube intended to receive the transferred products.
  • the body of the peristaltic pump incorporates a collapsible hose and it is open bilaterally: on the front to allow the introduction of the roller-driven rotor driven by the motor, and on the rear to allow the replacement of the hose.
  • the motor / roller carrier rotor assembly is positioned opposite the pump body designated by the sampling and mixing program, mates there and rotates in the direction of flow of the liquid until obtaining of the desired weight, stops and turns in the opposite direction for a revolution or two, in order to reintroduce into the initial container the liquid contained in the pipe and thus to remove it from the oxidizing action of the air.
  • the assembly decouples and positions itself in front of another pump body according to the following program.
  • the device according to the invention is completed by a simultaneous weighing device of the conventional type which is advantageously connected to the computer which controls the automatic operation of the assembly according to the program chosen.
  • FIG. 1 shows the pumping assembly of a device according to the invention with its motor and its roller-bearing rotor in the uncoupled position.
  • FIG. 2 shows the pump body of a device according to the invention, seen from the front.
  • FIG. 3 shows the same pump body, seen in section, " along the section line AA of Figure 1, in the uncoupled position with the rotor and the motor.
  • FIG. 4 shows the same pump body in the coupling position with the rotor and the motor.
  • a pumping block of the device comprises a peristaltic pump body 1 capable of being coupled to a movable assembly 2 incorporating a driven roller rotor 3 in rotation by a motor 4 and a receiving device 5 intended to hold the receiving bottle 6 where the mixing of the products is carried out, this receiving device 5 incorporating a weighing device (not shown in the figure) making it possible to control the quantity of liquid 11 introduced into the bottle 6.
  • the pump body 1 incorporates a crushing pipe 8 which opens at the lower part of the pump body 1 by n orifice 19 and which extends outside to be connected to a tube 9, which plunges through a stopper 13 into a bottle 10 containing the liquid 11 to be sampled, and kept in a bottle holder 14 incorporating the stopper 13.
  • a short tube 12 passed through the plug 13 maintains the liquid 11 at ambient pressure, while a clamp 15 makes it possible to close the pipe 8 after the sampling, the clamp 15 mechanically erasing as soon as the rotor 3 is introduced into the pump body 1.
  • the pipe 8 opens, inside the pump body 1, into an orifice 19 formed at the base of said pump body and through which the withdrawn liquid 11 flows into the receiving bottle 6.
  • the rollers 33 regularly spaced on the rotor 3 make it possible to create a peristaltic movement in the pipe 8, thus authorizing the sequential pumping of small quantities of liquid 11 in the bottle 10, the adjustment of the motor 4 making it possible to slow or accelerate the rotation of the rotor 3, and therefore liquid removal 11.
  • the crushing pipes of the pumping blocks of the device according to the invention must be chosen to have good resistance to ethanol and certain corrosive liquids, and they are preferably made of a plastic material such as. "TEFLON" (registered trademark).
  • the pump body can itself be in two parts to facilitate the machining of the groove receiving the collapsible pipe, and it is preferably made of aluminum alloy for reasons of lightness and rigidity, as well as ease of 'machining. Certain plastics can also be used They reserve their good resistance to solvents and ethyl vapors contained in the products handled.
  • the device according to the invention is particularly suitable for the automated mixing of liquids liable to be corrosive, of variable quality and viscosity and of various origins, and meets the principles laid down by precise specifications, in particular as regards the need to observe strict non-contamination, both by neighboring products to be handled and by the manufacturing agents contained in the products used.
  • the device according to the invention is particularly intended for the perfumery, cosmetology, para-pharmacy and pharmaco-chemistry industries, but can also be used in the field of food flavorings, and by laboratories wishing to s 'automate.

Abstract

The device comprises a set of peristaltic pump cases (1) which are integral with each of the receptacles (10) which hold the liquids (11). Each pump case (1) includes a compression pipe (8) and at least one of its sides is open in order to receive the rotor (3) of a mobile unit (2) which further comprises a motor (4) for driving said rotor (3), and a receiving device (5) for the receptacle (6) which receives the successively sampled liquids (11). The receiving device (5) includes a weighing device for monitoring the amount of liquid (11) which is placed in the receptacle (6).

Description

DISPOSITIF PERMETTANT DE PRELEVER,PESER ET MELANGER AUTOMATIQUEMENT DES LIQUIDES DIVERS ET COUTEUX. DEVICE FOR AUTOMATICALLY SAMPLING, WEIGHING AND MIXING MISCELLANEOUS AND COSTLY LIQUIDS.
La présente invention a pour objet un dispositif destiné à prélever, peser et mélonaanger automatiquement, suivant les données fournies par exemple par un ordinateur, des liquides divers et précieux, dans des conditions de non-contamination très strictes et de dosage pondéral précis.The subject of the present invention is a device intended to collect, weigh and automatically mix, according to the data supplied for example by a computer, various and precious liquids, under very strict non-contamination conditions and precise weight dosing.
Actuellement les opérations de mélange et de pesage sont effectuées manuellement dans les laboratoires, selon une certaine tradition mais en utilisant des balances électroniques de précision, ce qui n'élimine pas les risques d'erreurs de dosage et de manipulation des liquides, tant dans le domaine de la parfumerie et de la cosmétologie, que de la pharmacie classique et' de l'homéopathie, lesquels requièrent des dosages extrêmement précis.Currently mixing and weighing operations are carried out manually in laboratories, according to a certain tradition but using precision electronic scales, which does not eliminate the risk of errors in dosing and handling of liquids, both in the perfumery and cosmetology, than classical pharmacy and ' homeopathy, which require extremely precise dosages.
Le dispositif selon l'invention permet d'éviter ces erreurs, ainsi que les risques inhérents à la manipulation de produits très coûteux et parfois corrosifs, en garantissant d'une part une économie optimale de ces produits par une plus grande sûreté et une plus grande précision de manipulation, d'autre part une grande rapidité d'exécution, ainsi qu'une meilleure sécurité sanitaire du personnel, dont le contact avec des vapeurs éthyliques se trouve réduit.The device according to the invention makes it possible to avoid these errors, as well as the risks inherent in the handling of very expensive and sometimes corrosive products, by guaranteeing on the one hand an optimal economy of these products by a greater safety and a greater precision of handling, on the other hand a great speed of execution, as well as better health safety of the personnel, whose contact with ethyl vapors is reduced.
RHϋ_ E DE REMPI__AC2Λ,.π\nT Le dispositif selon l'invention comporte des éléments modulaires juxtaposables en fonction de la demande, chaque élément ou module comportant une multiplicité de blocs de pompage ou de transvasement, chacun de ces blocs étant solidaire d'un flacon ou autre récipient contenant la matière liquide à transvaser dans un flacon ou une éprouvette.RHϋ_ E DE REMPI__AC2Λ, .π \ nT The device according to the invention comprises modular elements which can be juxtaposed as a function of demand, each element or module comprising a multiplicity of pumping or transfer blocks, each of these blocks being integral with a bottle or other container containing the liquid material to be transfer to a bottle or test tube.
Le dispositif selon l'invention se caractérise par la mise en oeuvre, dans chaque bloc de pompage, d'une pompe péristaltique n'incorporant ni moteur ni rotor, ces derniers étant montés ensemble et solidaires d'un bras de robot mobile comportant une pince pour maintenir le flacon ou l'éprouvette destiné à recevoir les produits transvasés.The device according to the invention is characterized by the implementation, in each pumping block, of a peristaltic pump incorporating neither motor nor rotor, the latter being mounted together and integral with a mobile robot arm comprising a clamp to hold the bottle or test tube intended to receive the transferred products.
Le corps de la pompe péristaltique incorpore un tuyau à écrasement et il est ouvert bilatéralement : sur l'avant afin de permettre l'introduction du rotor porte-galets entraîné par le moteur, et sur l'arrière pour permettre le remplacement du tuyau.The body of the peristaltic pump incorporates a collapsible hose and it is open bilaterally: on the front to allow the introduction of the roller-driven rotor driven by the motor, and on the rear to allow the replacement of the hose.
Cette disposition s'explique par la nécessité de concevoir un ensemble simple d'entretien et d'utilisation par du personnel non qualifié et elle permet en outre une économie non négligeable en produits et en moyens de câblage, puisqu'un seul moteur équipé d'un rotor porte-galets suffit pour autant de corps de pompes que nécessaire, théoriquement sans limitation de nombre. En fonctionnement, l'ensemble moteur/rotor porte- galets vient se positionner en face du corps de pompe désigné par le programme de prélèvement et de mélange, s'y accouple et tourne dans le sens du débit du liquide jusqu'à l'obtention du poids désiré, s'arrête et tourne en sens inverse sur un tour ou deux, afin de réintroduire dans le récipient initial le liquide contenu dans le tuyau et le soustraire ainsi à 1'action oxydante de l'air. A la fin de cette opération, l'ensemble se désaccouple et se positionne devant un autre corps de pompe selon la suite du programme établi.This provision is explained by the need to design a simple set of maintenance and use by unqualified personnel and it also allows a significant saving in products and wiring means, since only one motor equipped with a roller-bearing rotor is sufficient for as many pump bodies as necessary, theoretically without limitation of number. In operation, the motor / roller carrier rotor assembly is positioned opposite the pump body designated by the sampling and mixing program, mates there and rotates in the direction of flow of the liquid until obtaining of the desired weight, stops and turns in the opposite direction for a revolution or two, in order to reintroduce into the initial container the liquid contained in the pipe and thus to remove it from the oxidizing action of the air. At the end of this operation, the assembly decouples and positions itself in front of another pump body according to the following program.
FEUILLE DE REMPLACEMENT En l'absence du rotor-galets un dispositif pince le tuyau de manière à empêcher un écoulement intempestif du produit et l'entrée de l'air.REPLACEMENT SHEET In the absence of the rotor-rollers, a device clamps the pipe so as to prevent an untimely flow of the product and the entry of air.
Le dispositif selon l'invention est complété par un dispositif de pesée simultanée de type classique qui est avantageusement relié à l'ordinateur qui commande le fonctionnement automatique de l'ensemble en fonction du programme choisi.The device according to the invention is completed by a simultaneous weighing device of the conventional type which is advantageously connected to the computer which controls the automatic operation of the assembly according to the program chosen.
La présente invention sera mieux comprise à la lecture de la description qui suit et qui se rapporte au dessin annexé, lequel en représente un mode de réalisation non limitatif.The present invention will be better understood on reading the description which follows and which refers to the appended drawing, which represents a non-limiting embodiment thereof.
Dans le dessin annexé :In the attached drawing:
- la figure 1 représente l'ensemble de pompage d'un dispositif selon l'invention avec son moteur et son rotor porte-galets en position désaccouplée.- Figure 1 shows the pumping assembly of a device according to the invention with its motor and its roller-bearing rotor in the uncoupled position.
- la figure 2 représente le corps de pompe d'un dispositif selon l'invention, vu de face.- Figure 2 shows the pump body of a device according to the invention, seen from the front.
- la figure 3 représente le même corps de pompe, vu en coupe, "selon la ligne de coupe AA de la figure 1 , en position désaccouplée avec le rotor et le moteur.- Figure 3 shows the same pump body, seen in section, " along the section line AA of Figure 1, in the uncoupled position with the rotor and the motor.
- la figure 4 représente le même corps de pompe en position d'accouplement avec le rotor et le moteur.- Figure 4 shows the same pump body in the coupling position with the rotor and the motor.
Si on se réfère d'abord à la figure 1, on voit qu'un bloc de pompage du dispositif selon l'invention comprend un corps de pompe péristaltique 1 susceptible d'être accouplé à un ensemble mobile 2 incorporant un rotor à galets 3 entraîné en rotation par un moteur 4 et un dispositif récepteur 5 destiné à maintenir le flacon récepteur 6 où le mélange des produits est effectué, ce dispositif récepteur 5 incorporant un dispositif de pesée (non représenté sur la figure) permettant de contrôler la quantité de liquide 11 introduite dans le flacon 6.If we refer first to Figure 1, we see that a pumping block of the device according to the invention comprises a peristaltic pump body 1 capable of being coupled to a movable assembly 2 incorporating a driven roller rotor 3 in rotation by a motor 4 and a receiving device 5 intended to hold the receiving bottle 6 where the mixing of the products is carried out, this receiving device 5 incorporating a weighing device (not shown in the figure) making it possible to control the quantity of liquid 11 introduced into the bottle 6.
Le corps de pompe 1 incorpore un tuyau à écrasement 8 qui débouche à la partie inférieure du corps de pompe 1 par n orifice 19 et qui se prolonge à l'extérieur pour se raccorder à un tube 9, lequel plonge à travers un bouchon 13 dans μn flacon 10 contenant le liquide 11 à prélever, et maintenu dans un porte-flacon 14 incorporant le bouchon 13. Un tube court 12 passé à travers le bouchon 13 maintient le liquide 11 à la pression ambiante, tandis qu'une pince 15 permet de fermer le tuyau 8 après le prélèvement, la pince 15 s'effaçant mécaniquement dès l'introduction du rotor 3 dans le corps de pompe 1. Si on se réfère maintenant aux figures 2, 3 et 4, on voit sur ces figures le corps de pompe 1 de la pompe péristaltique renfermant le tuyau 8 disposé dans une gorge circulaire 16, et muni bilatéralement de logements 17 pour deux ergots 18 solidaires du rotor 3, facilitant le centrage de ce dernier dans le corps de pompe 1.The pump body 1 incorporates a crushing pipe 8 which opens at the lower part of the pump body 1 by n orifice 19 and which extends outside to be connected to a tube 9, which plunges through a stopper 13 into a bottle 10 containing the liquid 11 to be sampled, and kept in a bottle holder 14 incorporating the stopper 13. A short tube 12 passed through the plug 13 maintains the liquid 11 at ambient pressure, while a clamp 15 makes it possible to close the pipe 8 after the sampling, the clamp 15 mechanically erasing as soon as the rotor 3 is introduced into the pump body 1. If we now refer to Figures 2, 3 and 4, we see in these figures the pump body 1 of the peristaltic pump containing the pipe 8 disposed in a circular groove 16, and provided bilaterally with housings 17 for two lugs 18 integral with the rotor 3, facilitating the centering of the latter in the pump body 1.
Le tuyau 8 débouche, à l'intérieur du corps de pompe 1, dans un orifice 19 ménagé à la base dudit corps, de pompe et par où le liquide 11 prélevé s'écoule dans le flacon récepteur 6. Les galets 33 régulièrement espacés sur le rotor 3 permettent de créer un mouvement péristaltique dans le tuyau 8, autorisant ainsi le pompage séquentiel de petites quantités de liquide 11 dans le flacon 10, le réglage du moteur 4 permettant de ralentir ou d'accélérer la rotation du rotor 3, et donc le prélèvement du liquide 11.The pipe 8 opens, inside the pump body 1, into an orifice 19 formed at the base of said pump body and through which the withdrawn liquid 11 flows into the receiving bottle 6. The rollers 33 regularly spaced on the rotor 3 make it possible to create a peristaltic movement in the pipe 8, thus authorizing the sequential pumping of small quantities of liquid 11 in the bottle 10, the adjustment of the motor 4 making it possible to slow or accelerate the rotation of the rotor 3, and therefore liquid removal 11.
Les tuyaux à écrasement des blocs de pompage du dispositif selon l'invention doivent être choisis pour présenter une bonne résistance à l'éthanol et à certains liquides corrosifs, et ils sont de préférence en une matière plastique telle que le . "TEFLON" (marque déposée). Le corps de pompe peut être lui-même en deux parties pour faciliter l'usinage de la gorge recevant le tuyau à écrasement, et il est de préférence en alliage d'aluminium pour des raisons de légèreté et de rigidité, ainsi que de facilité d'usinage. Certaines matières plastiques peuvent être également utilisées cous réserve de leur bonne tenue aux solvants et aux vapeurs éthyliques contenus dans les produits manipulés.The crushing pipes of the pumping blocks of the device according to the invention must be chosen to have good resistance to ethanol and certain corrosive liquids, and they are preferably made of a plastic material such as. "TEFLON" (registered trademark). The pump body can itself be in two parts to facilitate the machining of the groove receiving the collapsible pipe, and it is preferably made of aluminum alloy for reasons of lightness and rigidity, as well as ease of 'machining. Certain plastics can also be used They reserve their good resistance to solvents and ethyl vapors contained in the products handled.
Le dispositif selon l'invention est particulièrement adapté au mélange automatisé de liquides susceptibles d'être corrosifs, de qualité et de viscosité variables et d'origines diverses, et répond aux principes édictés par un cahier des charges précis, notamment pour ce qui concerne la nécessité d'observer une non-contamination stricte, tant par les produits voisins devant être manipulés, que par les agents de fabrication contenus dans les produits utilisés.The device according to the invention is particularly suitable for the automated mixing of liquids liable to be corrosive, of variable quality and viscosity and of various origins, and meets the principles laid down by precise specifications, in particular as regards the need to observe strict non-contamination, both by neighboring products to be handled and by the manufacturing agents contained in the products used.
Le dispositif selon l'invention est particulièrement destiné aux industries de la parfumerie, de la cosmétologie, de la para-pharmacie et de la pharmaco-chimie, mais peut être également utilisé dans le domaine des produits aromatiques alimentaires, et par les laboratoires désirant s'automatiser.The device according to the invention is particularly intended for the perfumery, cosmetology, para-pharmacy and pharmaco-chemistry industries, but can also be used in the field of food flavorings, and by laboratories wishing to s 'automate.
F LL F LL

Claims

REVENDICATIONS
1 Dispositif permettant de prélever, peser et mélanger automatiquement des liquides divers et coûteux, caractérisé en ce qu'il comporte un ensemble de corps de pompes peristaltiques (1) solidaires chacun de flacons (10) renfermant lesdits liquides (11), chaque corps de pompe (1) incorporant un tuyau (8) à écrasement et étant ouvert sur au moins une de ses faces pour, recevoir le rotor (3) d'un ensemble mobile (2) comportant en outre un moteur (4) d'entraînement dudit rotor (3) et un dispositif récepteur (5) pour le flacon récepteur (6) destiné à recevoir les liquides (11) prélevés successivement, le dispositif récepteur (5) incorporant un dispositif de pesée permettant de contrôler la quantité de liquide (11) introduite dans le flacon (6). 2) Dispositif selon la revendication 1, caractérisé en ce qu'il comporte un dispositif de centrage du rotor (3) de l'ensemble mobile (2), constitué d'ergots (18) solidaires dudit rotor (3) et de logements (17) ménagés bilatéralement dans le corps de pompe (1) pour recevoir lesdits ergots (18). 3) Dispositif selon la revendication 1 ou la revendication 2, caractérisé en ce qu'une pince (15) ferme le tuyau (8) après le prélèvement du liquide (11), ladite pince (15) s'effaçant mécaniquement dès l'introduction du rotor (3) dans le corps de pompe (1) .1 Device for automatically taking, weighing and mixing various and expensive liquids, characterized in that it comprises a set of bodies of peristaltic pumps (1) each secured to bottles (10) containing said liquids (11), each body of pump (1) incorporating a collapsible pipe (8) and being open on at least one of its faces for receiving the rotor (3) of a mobile assembly (2) further comprising a motor (4) for driving said rotor (3) and a receiving device (5) for the receiving bottle (6) intended to receive the liquids (11) successively withdrawn, the receiving device (5) incorporating a weighing device making it possible to control the quantity of liquid (11) introduced into the bottle (6). 2) Device according to claim 1, characterized in that it comprises a device for centering the rotor (3) of the mobile assembly (2), consisting of lugs (18) integral with said rotor (3) and housings ( 17) arranged bilaterally in the pump body (1) to receive said pins (18). 3) Device according to claim 1 or claim 2, characterized in that a clamp (15) closes the pipe (8) after the withdrawal of the liquid (11), said clamp (15) erasing mechanically upon introduction rotor (3) in the pump body (1).
FEUILLE DE REMPLACEMENT REPLACEMENT SHEET
PCT/FR1990/000850 1989-11-24 1990-11-26 Device for automatically sampling, weighing and mixing various expensive liquids WO1991008451A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8915601A FR2655092B1 (en) 1989-11-24 1989-11-24 OPEN PERISTALTIC PUMP WITH DECOUPLABLE ROTOR FOR PERFUMER ROBOT.
FR89/15601 1989-11-24

Publications (1)

Publication Number Publication Date
WO1991008451A1 true WO1991008451A1 (en) 1991-06-13

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PCT/FR1990/000850 WO1991008451A1 (en) 1989-11-24 1990-11-26 Device for automatically sampling, weighing and mixing various expensive liquids

Country Status (3)

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EP (1) EP0466845A1 (en)
FR (1) FR2655092B1 (en)
WO (1) WO1991008451A1 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
FR2752831A1 (en) * 1996-07-26 1998-03-06 Ecolab Inc DILUTION DELIVERY SYSTEM WITH PRODUCT LOCKING ARRANGEMENT

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Publication number Priority date Publication date Assignee Title
FR2677008B1 (en) * 1991-05-31 1996-12-20 Inf Lab PERISTALTIC PUMP DEVICE FOR AUTOMATICALLY TAKING, WEIGHING AND MIXING LIQUIDS.
US5597094A (en) * 1992-12-03 1997-01-28 Solignac Industries S.A. Device with peristaltic pump which makes it possible to draw, weight and mix liquids automatically
ATE552208T1 (en) * 2002-11-22 2012-04-15 Lesaffre & Cie METHOD AND DEVICE FOR DOSING LIQUID YEAST
CN112915829A (en) * 2021-02-18 2021-06-08 西南石油大学 Automatic device for preparing drilling fluid

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GB2133775A (en) * 1983-01-10 1984-08-01 Applied Color Systems Inc Apparatus and process for low volume dispensing and mixing
GB2151800A (en) * 1983-12-21 1985-07-24 Buehler Miag Gmbh Automatic weighing of bulk materials or fluids
EP0173846A1 (en) * 1984-08-07 1986-03-12 Abbott Laboratories Removable peristaltic pump head

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JPS59154259U (en) * 1983-04-01 1984-10-16 株式会社ウベ循研 Conical blood pump

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133775A (en) * 1983-01-10 1984-08-01 Applied Color Systems Inc Apparatus and process for low volume dispensing and mixing
GB2151800A (en) * 1983-12-21 1985-07-24 Buehler Miag Gmbh Automatic weighing of bulk materials or fluids
EP0173846A1 (en) * 1984-08-07 1986-03-12 Abbott Laboratories Removable peristaltic pump head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2752831A1 (en) * 1996-07-26 1998-03-06 Ecolab Inc DILUTION DELIVERY SYSTEM WITH PRODUCT LOCKING ARRANGEMENT

Also Published As

Publication number Publication date
FR2655092B1 (en) 1994-07-08
EP0466845A1 (en) 1992-01-22
FR2655092A1 (en) 1991-05-31

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