WO2000020340A1 - Water treatment apparatus by filtering and irradiation - Google Patents
Water treatment apparatus by filtering and irradiation Download PDFInfo
- Publication number
- WO2000020340A1 WO2000020340A1 PCT/FR1999/002271 FR9902271W WO0020340A1 WO 2000020340 A1 WO2000020340 A1 WO 2000020340A1 FR 9902271 W FR9902271 W FR 9902271W WO 0020340 A1 WO0020340 A1 WO 0020340A1
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- WO
- WIPO (PCT)
- Prior art keywords
- water
- treatment apparatus
- water treatment
- lamp
- tube
- 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.)
- Ceased
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
- C02F1/325—Irradiation devices or lamp constructions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
- C02F9/20—Portable or detachable small-scale multistage treatment devices, e.g. point of use or laboratory water purification systems
Definitions
- the present invention relates to a water treatment apparatus for household use.
- water purifiers which treat the water introduced into the device by means of a mechanical filter containing chemically active substances, for example of the ion exchange resin type.
- pu activated carbon intended to purify water of undesirable particles, to eliminate certain dissolved substances, such as active chlorine, and to avoid the formation of tartar.
- such a filter effectively fulfills the functions assigned to it and which have been set out above.
- it constitutes a favorable environment for the development of certain bacteria or micro-organisms which, with each use, are drained by water as it passes through said filter, and are therefore absorbed by the consumer at the same time as water. processed that contains them.
- the active chlorine has an antibacterial effect, which is therefore annihilated at the same time as the active chlorine itself.
- the invention relates more specifically to a water treatment appliance for household use comprising an inlet pipe capable of being connected to a water supply, a mechanical filter containing active substances influencing the chemical composition of the water.
- a lamp with ultraviolet radiation a lamp with ultraviolet radiation
- an expansion tube ' exposed to said radiation and designed so as to selectively allow the passage of said radiation
- an outlet pipe for treated water directly connected to said tube a circuit of pipes ensuring the passage of water between the various elements, a member placed in the circuit of pipes making it possible to put the water in circulation in the device, an electrical supply connected to the member and the lamp, and a control device acting on the organ and the lamp.
- the invention proposes that the control device be linked to a timer which authorizes the actuation of the member only after a predetermined delay period during which the lamp is in operation.
- the standing water is first treated with ultraviolet light before the organ is activated and causes its routing towards the outlet pipe of the device, which makes it possible to eliminate or to inhibit the bacteria and microorganisms it contains.
- the water treatment apparatus 1 comprises
- an inlet pipe 2 capable of being connected to a water supply, which may be a reservoir or a distribution network;
- a mechanical filter 3 containing active substances 4 influencing the chemical composition of the water to be treated these substances possibly advantageously containing ion exchange resins, which have the known properties of preventing the formation of lime by prior action on its constituents or to remove nitrates, or activated carbon which aims to transform dissolved active chlorine, for example hypochlorite or chlorine dioxide, into chloride;
- an expansion tube 6 exposed to said radiation and designed so as to selectively allow the passage of said radiation, namely to allow the passage of radiation from the lamp 5 to the water contained in the tube 6, and prohibit the emission of radiation towards the middle outside laughing at the system, in order to protect users from the danger represented by the impact of such safe radiation for people;
- It can also be a simple electrically actuated valve, if the pressure supplied by the water supply is sufficient for the sole opening of the valve to allow the circulation of water in the device;
- control device 11 for example a simple switch operable by the user, acting on the supply of the member 9 and of the lamp 5.
- control device 11 is connected to a timer 12 which authorizes the actuation of the member 9 only after a predetermined delay time during which the lamp 5 is in operation, which implies that when the user actuates the device 1, the lamp 5 and the member 9 are not energized simultaneously as is the case in known devices.
- Timer 12 is a very simple electronic circuit commonly used in many household appliances.
- the tube 6 is a twin tube consisting of an inner cylindrical wall 13 and an outer cylindrical wall 14 , the lamp 5 being arranged in the interior volume defined by the interior wall 13, and the water being received in the peripheral volume 15 defined by the two walls 13, 14.
- the treatment speed is further increased.
- the outer wall 14 of the tube 6 is coated with a reflective material 16, of the aluminum type, preventing the passage of radiation ultraviolet of the peripheral volume 15 towards the outside of the tube 6.
- the radiation must on the other hand propagate under good conditions, through the interior wall 13 of the tube; this object is achieved by the fact that the inner wall 13 of the tube 6 is made of quartz.
- the power of the lamp makes it possible to effectively treat bacteria or micro- organisms contained in water with a relatively short exposure time, namely a few seconds.
- the time delay is therefore fixed at a value between three and five seconds, which is sufficient for the destruction or inhibition of said bacteria.
- the filtration stage preceding the passage of water through the tube for treatment with ultraviolet rays consists of a filter of which an active substance 4 is an ion exchange resin; the effectiveness of such resins in combating the formation of tartar being perfectly known and demonstrated.
- a device of this type equipped with a timer system as described above, guarantees the user of this type of purifier against a water treatment potentially generating excessive concentrations of bacteria, germs, microorganisms of different types . Because treatments aimed at preventing lime formation and softening drinking water, are often wind implemented at the expense of compliance with certain bacteriological limits, whether or not set by official standards. In this perspective, the invention reconciles the physico-chemical and mechanical treatment of water, with effective bacteriological treatment in various modes and frequencies of use.
- the apparatus according to the invention provides the user with each new start-up, even after a prolonged period of non-use, a first glass of water of good bacteriological quality.
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Toxicology (AREA)
- Physical Water Treatments (AREA)
Abstract
Description
APPAREIL DE TRAITEMENT DE L'EAU PAR FILTRATION ET IRRADIATION FILTRATION AND IRRADIATION WATER TREATMENT APPARATUS
La présente invention se rapporte à un appareil de traitement d'eau à usage ménager.The present invention relates to a water treatment apparatus for household use.
Il existe de nombreux dispositifs de ce type, appelés généralement « purificateurs d'eau », qui traitent' l'eau introduite dans le dispositif au moyen d'un filtre mécanique contenant des substances chimiquement actives, par exemple du type résine échangeuse d'ions pu charbon actif, destiné à épurer l'eau de particules indésirables, éliminer certaines substances dissoutes, telles du chlore actif, et éviter la formation de tartre.There are many devices of this type, generally called "water purifiers", which treat the water introduced into the device by means of a mechanical filter containing chemically active substances, for example of the ion exchange resin type. pu activated carbon, intended to purify water of undesirable particles, to eliminate certain dissolved substances, such as active chlorine, and to avoid the formation of tartar.
Généralement, un tel filtre remplit efficacement les fonctions qui lui sont assignées et qui ont été exposées ci-dessus. Cependant, il constitue un milieu favorable au développement de certaines bactéries ou micro-organismes qui, à chaque utilisation, sont drainés par l'eau à son passage au travers dudit filtre, et sont donc absorbés par le consommateur en même temps que l'eau traitée qui les contient. D'autant que le chlore actif a un effet antibactérien, qui est donc annihilé en même temps que le chlore actif lui-même.Generally, such a filter effectively fulfills the functions assigned to it and which have been set out above. However, it constitutes a favorable environment for the development of certain bacteria or micro-organisms which, with each use, are drained by water as it passes through said filter, and are therefore absorbed by the consumer at the same time as water. processed that contains them. Especially since the active chlorine has an antibacterial effect, which is therefore annihilated at the same time as the active chlorine itself.
On connaît également certains dispositifs industriels ou ménagers qui permettent de traiter une eau issue d'un filtre de ce type, au moyen d'un rayonnement ultraviolet , de façon à inhiber ou détruire une partie des bactéries ou des micro-organismes contenus dans l'eau traitée par le filtre, avant de distribuer l'eau à l'utilisateur final. L'invention vise plus précisément- un appareil de traitement d'eau à usage ménager comprenant une tubulure d'entrée susceptible d'être raccordée à une alimentation en eau, un filtre mécanique contenant des substances actives influant sur la composition chimique de l'eau à traiter, une lampe à rayonnement ultraviolet, un tube d'expansion' exposé audit rayonnement et conçu de façon à autoriser sélectivement le passage dudit rayonnement, une tubulure de sortie de l'eau traitée directement reliée audit tube, un circuit de canalisations assurant le passage de l'eau entre les différents éléments, un organe placé dans le circuit de canalisations permettant de mettre l'eau en circulation dans l'appareil, une alimentation électrique reliée à l'organe et la lampe, et un dispositif de commande agissant sur l'organe et la lampe.There are also known certain industrial or household devices which make it possible to treat water coming from a filter of this type, by means of ultraviolet radiation, so as to inhibit or destroy part of the bacteria or microorganisms contained in the water treated by the filter, before distributing the water to the end user. The invention relates more specifically to a water treatment appliance for household use comprising an inlet pipe capable of being connected to a water supply, a mechanical filter containing active substances influencing the chemical composition of the water. to be treated, a lamp with ultraviolet radiation, an expansion tube ' exposed to said radiation and designed so as to selectively allow the passage of said radiation, an outlet pipe for treated water directly connected to said tube, a circuit of pipes ensuring the passage of water between the various elements, a member placed in the circuit of pipes making it possible to put the water in circulation in the device, an electrical supply connected to the member and the lamp, and a control device acting on the organ and the lamp.
Un tel appareil présente cependant une efficacité limitée du fait de la présence dans le tube, lors de l'arrêt de l'appareil, d'une certaine quantité d'eau susceptible de stagner pendant un temps relativement long, avant l'utilisation suivante de l'appareil. Cette eau stagnante est potentiellement le siège d'une prolifération importante des bactéries et micro-organismes, qu'un tel système est justement destiné à combattre. Ce cas se produit par exem- pie lorsque l'utilisateur ne fait pas usage de l'appareil durant plusieurs jours.However, such an apparatus has limited effectiveness due to the presence in the tube, when the apparatus is stopped, of a certain amount of water capable of stagnating for a relatively long time, before the next use of the device. This stagnant water is potentially the seat of a significant proliferation of bacteria and microorganisms, which such a system is precisely intended to combat. This case occurs for example when the user does not use the device for several days.
Afin de remédier à l'inconvénient précité, l'invention propose que le dispositif de commande soit re- lié à un temporisateur qui n'autorise 1 ' actionnement de l'organe qu'après une durée de temporisation prédéterminée pendant laquelle la lampe est en fonctionnement. Ainsi, à la mise en marche de l'appareil, l'eau stagnante est d'abord traitée aux ultraviolets avant que l'organe ne soit activé et ne provoque son acheminement vers la tubulure de sortie du dispositif, ce qui permet d'éliminer ou d'inhiber les bactéries et micro-organismes qu'elle contient .In order to remedy the aforementioned drawback, the invention proposes that the control device be linked to a timer which authorizes the actuation of the member only after a predetermined delay period during which the lamp is in operation. Thus, when the device is switched on, the standing water is first treated with ultraviolet light before the organ is activated and causes its routing towards the outlet pipe of the device, which makes it possible to eliminate or to inhibit the bacteria and microorganisms it contains.
L'invention sera mieux comprise à la lecture de la description détaillée qui va suivre, donnée à titre d'exemple non-limitatif, en référence à la figure unique annexée, représentant une vue en élévation schématique de l'appareil suivant l'invention.The invention will be better understood on reading the detailed description which follows, given by way of non-limiting example, with reference to the single appended figure, showing a schematic elevation view of the device according to the invention.
Comme on le voit sur la figure, l'appareil 1 de trai- tement d'eau comporteAs can be seen in the figure, the water treatment apparatus 1 comprises
• une tubulure d'entrée 2 susceptible d'être raccordée à une alimentation en eau, qui peut être un réservoir ou un réseau de distribution ;• an inlet pipe 2 capable of being connected to a water supply, which may be a reservoir or a distribution network;
• un filtre mécanique 3 contenant des substances actives 4 influant sur la composition chimique de l'eau à traiter, ces substances pouvant contenir avantageusement des résines échangeuses d'ions, qui ont pour propriétés connues de prévenir la formation de calcaire par action préalable sur ses constituants ou d'éliminer les nitra- tes, ou du charbon actif qui vise à transformer le chlore actif dissous, par exemple de 1 ' hypochlorite ou du dioxyde de chlore, en chlorure ;• a mechanical filter 3 containing active substances 4 influencing the chemical composition of the water to be treated, these substances possibly advantageously containing ion exchange resins, which have the known properties of preventing the formation of lime by prior action on its constituents or to remove nitrates, or activated carbon which aims to transform dissolved active chlorine, for example hypochlorite or chlorine dioxide, into chloride;
• une lampe 5 à rayonnement ultraviolet ;• a lamp 5 with ultraviolet radiation;
• un tube d'expansion 6 exposé audit rayonnement et conçu de façon à autoriser sélectivement le passage dudit rayonnement, à savoir autoriser le passage du rayonnement de la lampe 5 vers l'eau contenue dans le tube 6, et interdire l'émission du rayonnement vers le milieu exté- rieur au système, afin de préserver les utilisateurs du danger que représente l'impact d'un tel rayonnement sûr des personnes ;• an expansion tube 6 exposed to said radiation and designed so as to selectively allow the passage of said radiation, namely to allow the passage of radiation from the lamp 5 to the water contained in the tube 6, and prohibit the emission of radiation towards the middle outside laughing at the system, in order to protect users from the danger represented by the impact of such safe radiation for people;
• une tubulure de sortie 7 de l'eau traitée, direc- tement reliée à la sortie dudit tube 6, qui délivre l'eau à l'utilisateur à l'issue du traitement dans l'appareil• an outlet tube 7 for the treated water, directly connected to the outlet of said tube 6, which delivers the water to the user at the end of the treatment in the apparatus
I ;I;
• un circuit 8 de canalisations assurant le passage de l'eau entre les différents éléments ; • un organe 9 placé dans le circuit 8 de canalisations, permettant de mettre l'eau en circulation dans l'appareil 1, cet organe étant constitué, dans le mode de réalisation préféré représenté, d'une pompe électrique.• a circuit 8 of pipes ensuring the passage of water between the different elements; • a member 9 placed in the circuit 8 of pipes, making it possible to put the water in circulation in the device 1, this member being constituted, in the preferred embodiment shown, of an electric pump.
II peut s'agir également d'un simple clapet actionné électriquement, si la pression fournie par l'alimentation en eau est suffisante pour que la seule ouverture du clapet permette la mise en circulation de l'eau dans le dispositif ;It can also be a simple electrically actuated valve, if the pressure supplied by the water supply is sufficient for the sole opening of the valve to allow the circulation of water in the device;
• une alimentation électrique 10 reliée à l'organe 9 et la lampe 5 ;• a power supply 10 connected to the member 9 and the lamp 5;
• et un dispositif de commande 11, par exemple un simple interrupteur manoeuvrable par l'utilisateur, agissant sur l'alimentation de l'organe 9 et de la lampe 5.• and a control device 11, for example a simple switch operable by the user, acting on the supply of the member 9 and of the lamp 5.
Suivant l'invention, le dispositif de commande 11 est relié à un temporisateur 12 qui n'autorise 1 ' actionnement de l'organe 9 qu'après une durée de temporisation prédéterminée pendant laquelle la lampe 5 est en fonctionnement, ce qui implique qu'au moment où l'utilisateur actionne l'appareil 1, la lampe 5 et l'organe 9 ne sont pas mis sous tension simultanément comme cela est le cas dans les dispositifs connus. Le temporisateur 12 est un circuit électronique d'une grande simplicité et couramment utilisé dans de nombreux appareils électroménagers.According to the invention, the control device 11 is connected to a timer 12 which authorizes the actuation of the member 9 only after a predetermined delay time during which the lamp 5 is in operation, which implies that when the user actuates the device 1, the lamp 5 and the member 9 are not energized simultaneously as is the case in known devices. Timer 12 is a very simple electronic circuit commonly used in many household appliances.
Afin de réduire l'encombrement .du dispositif, et de limiter la complexité des lampes à U.V. utilisées, il est' prévu que le tube 6 soit un bi-tube constitué d'une paroi cylindrique intérieure 13 et d'une paroi cylindrique extérieure 14, la lampe 5 étant disposée dans le volume inté- rieur défini par la paroi intérieure 13, et l'eau étant reçue dans le volume périphérique 15 défini par les deux parois 13, 14.To reduce clutter .from the device, and limiting the complexity of the UV lamps used, there is' provided that the tube 6 is a twin tube consisting of an inner cylindrical wall 13 and an outer cylindrical wall 14 , the lamp 5 being arranged in the interior volume defined by the interior wall 13, and the water being received in the peripheral volume 15 defined by the two walls 13, 14.
Du fait de cette disposition suivant laquelle l'eau à traiter entoure le corps émetteur du rayonnement, la vitesse de traitement est en outre accrue.Due to this arrangement according to which the water to be treated surrounds the body emitting the radiation, the treatment speed is further increased.
Pour des raisons de sécurité qui imposent que le rayonnement U.V. ne soit pas susceptible de se propager en dehors de l'appareil, la paroi extérieure 14 du tube 6 est revêtue d'un matériau réflecteur 16, du type aluminium, interdisant le passage du rayonnement ultraviolet du volume périphérique 15 vers l'extérieur du tube 6.For security reasons which require that UV radiation is not likely to propagate outside the device, the outer wall 14 of the tube 6 is coated with a reflective material 16, of the aluminum type, preventing the passage of radiation ultraviolet of the peripheral volume 15 towards the outside of the tube 6.
Le rayonnement doit par contre se propager dans de bonnes conditions, à la traversée de la paroi intérieure 13 du tube; ce but est atteint par le fait que la paroi intérieure 13 du tube 6 est réalisée en quartz.The radiation must on the other hand propagate under good conditions, through the interior wall 13 of the tube; this object is achieved by the fact that the inner wall 13 of the tube 6 is made of quartz.
Dans le cadre de l'utilisation de lampes à U.V. communément employées dans ce type d'applications ou dans d'autres applications domestiques, la puissance de la lampe permet de traiter efficacement les bactéries ou micro- organismes contenus dans l'eau avec une durée d'exposition relativement courte, à savoir quelques secondes.In the context of the use of UV lamps commonly used in this type of application or in other domestic applications, the power of the lamp makes it possible to effectively treat bacteria or micro- organisms contained in water with a relatively short exposure time, namely a few seconds.
On fixe par conséquent la durée de temporisation à une valeur comprise entre trois et cinq secondes, qui suffit à la destruction ou l'inhibition desdites bactéries.The time delay is therefore fixed at a value between three and five seconds, which is sufficient for the destruction or inhibition of said bacteria.
Il existe d'autre part différents modes de traitement des bactéries par un rayonnement lumineux, qui consistent à traiter la cible soit de manière directe, correspondant à un rayonnement de longueur d'onde comprise entre 0,185 et 0,280 microns, auquel cas les bactéries sont elles-mêmes dégradées par l'impact du rayonnement; soit de manière indirecte, correspondant à un rayonnement U.V. de longueur d'onde inférieure à 0,185 microns, auquel cas des molécules d'ozone sont formées dans l'environnement immédiat de la cible, constituant une enveloppe destructrice ou inhibi- trice.There are also different ways of treating bacteria with light radiation, which consists of treating the target either directly, corresponding to radiation of wavelength between 0.185 and 0.280 microns, in which case the bacteria are they -same degraded by the impact of radiation; either indirectly, corresponding to UV radiation with a wavelength of less than 0.185 microns, in which case ozone molecules are formed in the immediate environment of the target, constituting a destructive or inhibitory envelope.
De préférence, l'étage de filtration précédant le passage de l'eau dans le tube pour traitement aux rayons ultraviolets, est constitué d'un filtre dont une substance active 4 est une résine échangeuse d'ions; l'efficacité de telles résines pour lutter contre la formation de tartre étant parfaitement connue et démontrée.Preferably, the filtration stage preceding the passage of water through the tube for treatment with ultraviolet rays, consists of a filter of which an active substance 4 is an ion exchange resin; the effectiveness of such resins in combating the formation of tartar being perfectly known and demonstrated.
Un appareil de ce type, équipé d'un système de temporisation tel que décrit précédemment, garantit l'utilisateur de ce type de purificateur contre un traitement de l'eau potentiellement générateur de concentrations excessives de bactéries, germes, micro-organismes de différents types. Car les traitements visant à prévenir la formation de calcaire et à adoucir l'eau de consommation, sont sou- vent mis en oeuvre au détriment du respect de certaines limites bactériologiques, fixées ou non par des normes officielles. Dans cette optique, l'invention concilie le traitement physico-chimique et mécanique de l'eau, avec un traitement bactériologique efficace dans des modes et des fréquences d'utilisation divers.A device of this type, equipped with a timer system as described above, guarantees the user of this type of purifier against a water treatment potentially generating excessive concentrations of bacteria, germs, microorganisms of different types . Because treatments aimed at preventing lime formation and softening drinking water, are often wind implemented at the expense of compliance with certain bacteriological limits, whether or not set by official standards. In this perspective, the invention reconciles the physico-chemical and mechanical treatment of water, with effective bacteriological treatment in various modes and frequencies of use.
L'appareil suivant l'invention assure à l'utilisateur lors de chaque nouvelle mise en marche, même après une pé- riode prolongée d' inutilisation, un premier verre d'eau de bonne qualité bactériologique. The apparatus according to the invention provides the user with each new start-up, even after a prolonged period of non-use, a first glass of water of good bacteriological quality.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR98/12282 | 1998-10-01 | ||
| FR9812282A FR2784092A1 (en) | 1998-10-01 | 1998-10-01 | HOUSEHOLD APPLIANCE FOR BACTERIAL TREATMENT AND WATER PURIFICATION. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2000020340A1 true WO2000020340A1 (en) | 2000-04-13 |
Family
ID=9531072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR1999/002271 Ceased WO2000020340A1 (en) | 1998-10-01 | 1999-09-23 | Water treatment apparatus by filtering and irradiation |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2784092A1 (en) |
| WO (1) | WO2000020340A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000068152A1 (en) * | 1999-05-05 | 2000-11-16 | Milton Paul Pinel | Method and apparatus for fluid treatment by uv-radiation |
| WO2004071961A2 (en) * | 2003-02-13 | 2004-08-26 | White, Duncan, Rohan | Water filter device and method |
| CN105127182B (en) * | 2015-09-22 | 2018-06-29 | 湖南新九方科技有限公司 | Modularity packaged type medicament feed system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2070900A (en) * | 1980-03-05 | 1981-09-09 | Sybron Corp | Water purification apparatus |
| US4849100A (en) * | 1986-03-07 | 1989-07-18 | North American Aqua | Portable water purifier |
-
1998
- 1998-10-01 FR FR9812282A patent/FR2784092A1/en active Pending
-
1999
- 1999-09-23 WO PCT/FR1999/002271 patent/WO2000020340A1/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2070900A (en) * | 1980-03-05 | 1981-09-09 | Sybron Corp | Water purification apparatus |
| US4849100A (en) * | 1986-03-07 | 1989-07-18 | North American Aqua | Portable water purifier |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2784092A1 (en) | 2000-04-07 |
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