FR2852860A1 - DEVICE FOR FILTERING THE WATER OF A SWIMMING POOL USING AT LEAST ONE FILTERING POCKET - Google Patents
DEVICE FOR FILTERING THE WATER OF A SWIMMING POOL USING AT LEAST ONE FILTERING POCKET Download PDFInfo
- Publication number
- FR2852860A1 FR2852860A1 FR0303801A FR0303801A FR2852860A1 FR 2852860 A1 FR2852860 A1 FR 2852860A1 FR 0303801 A FR0303801 A FR 0303801A FR 0303801 A FR0303801 A FR 0303801A FR 2852860 A1 FR2852860 A1 FR 2852860A1
- Authority
- FR
- France
- Prior art keywords
- water
- filter bag
- bag
- cylindrical body
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000001914 filtration Methods 0.000 title claims abstract description 19
- 230000009182 swimming Effects 0.000 title claims description 10
- 230000000694 effects Effects 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims abstract description 8
- 230000008021 deposition Effects 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 238000011045 prefiltration Methods 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims description 5
- 239000000725 suspension Substances 0.000 description 3
- 239000000470 constituent Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/23—Supported filter elements arranged for outward flow filtration
- B01D29/27—Filter bags
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/76—Handling the filter cake in the filter for purposes other than for regenerating
- B01D29/86—Retarding cake deposition on the filter during the filtration period, e.g. using stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/90—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding
- B01D29/906—Special treatment of the feed stream before contacting the filtering element, e.g. cutting
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
- Filtration Of Liquid (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Ce dispositif de filtration est remarquable en ce que l'intérieur de la ou les poche(s) filtrante(s) présente(nt) des agencements aptes à créer, sous l'effet de l'aspiration, un mouvement tourbillonnaire de l'eau par effet de VORTEX pour ré-aspirer les particules dans l'axe d'aspiration, de ladite poche, de manière à retarder le dépôt de particules ou impuretés sur la poche.This filtration device is remarkable in that the interior of the filter bag (s) has (s) arrangements capable of creating, under the effect of the suction, a swirling movement of the water. by the effect of VORTEX to re-aspirate the particles in the suction axis of said bag, so as to delay the deposition of particles or impurities on the bag.
Description
L'invention se rattache au secteur technique de la filtration de l'eauThe invention relates to the technical sector of water filtration
notamment de l'eau d'un bassin de piscine. especially water from a swimming pool.
Plus particulièrement, l'invention concerne une filtration obtenue au 5 moyen d'une poche, comme il ressort de l'enseignement du brevet EP 0423043. More particularly, the invention relates to filtration obtained by means of a bag, as is apparent from the teaching of patent EP 0423043.
Cette poche est montée en combinaison avec un circuit d'aspiration et de refoulement de l'eau. Par exemple, la ou les poches de filtration peut(vent) être montée(s) dans un ensemble compact comprenant un 10 compartiment de filtration, en communication avec l'eau du bassin, et un compartiment de pompage situé à l'extérieur dudit bassin. Cet ensemble compact peut constituer un bloc, monté par exemple en chevauchement des panneaux ou autres, constituant la paroi du bassin de la piscine, ou bien constituer directement l'un des panneaux constitutifs du bassin de la 15 piscine. This pocket is mounted in combination with a water suction and delivery circuit. For example, the filtration bag (s) can (wind) be mounted in a compact assembly comprising a filtration compartment, in communication with the water in the basin, and a pumping compartment situated outside said basin . This compact assembly can constitute a block, mounted for example in overlapping of the panels or the like, constituting the wall of the swimming pool basin, or else directly constitute one of the constituent panels of the swimming pool basin.
L'eau en provenance du bassin est aspirée au travers d'au moins une bouche dénommée " SKIMMER" que présente le compartiment de filtration, en correspondance avec l'eau du bassin de la piscine. L'eau ainsi aspirée passe au travers de la ou des poche(s) filtrante(s) et, est refoulée 20 dans le bassin de la piscine, par des buses frontales et/ou latérales, au moyen généralement d'une pompe, installée dans le compartiment situé à l'extérieur du bassin. The water coming from the basin is sucked through at least one mouth called "SKIMMER" presented by the filtration compartment, in correspondence with the water of the swimming pool basin. The water thus sucked passes through the filter bag (s) and is discharged into the swimming pool basin by front and / or side nozzles, generally by means of a pump, installed in the compartment outside the pool.
La poche filtrante est généralement positionnée d'une manière 25 amovible, dans un manchon cylindrique faisant office de support monté verticalement dans le compartiment de filtration. Ce support peut être monté de manière rapportée ou formée directement lors de la fabrication du compartiment de filtration. Le fonds du support est relié au dispositif d'aspiration. La fixation de la poche filtrante à l'intérieur du support cylindrique peut être effectuée par tous moyens connus et appropriés. Par ailleurs, le plus souvent, à l'entrée de la poche, est monté un organe de préfiltration, par exemple sous forme d'un panier ajouré Cette solution donne satisfaction. Bien évidemment, au bout d'un certain temps de fonctionnement, la poche de filtration va être encrassée, de sorte qu'il sera nécessaire de la remplacer par une poche non usagée ou par une poche préalablement nettoyée, étant rappelé que ce type de poche 10 filtrante peut être passée dans une machine à laver. Généralement, dans un fonctionnement normal, il est nécessaire de changer la poche tous les quinze jours environ. On conçoit toutefois qu'il peut être intéressant pour l'utilisateur d'espacer encore plus le temps de changement, sans pour autant nuire à la qualité de filtration. The filter bag is generally removably positioned in a cylindrical sleeve serving as a support mounted vertically in the filtration compartment. This support can be attached or formed directly during the manufacture of the filtration compartment. The bottom of the support is connected to the suction device. The filter bag can be fixed inside the cylindrical support by any known and appropriate means. Furthermore, most often, at the entrance to the pocket, a prefiltration member is mounted, for example in the form of an openwork basket. This solution is satisfactory. Obviously, after a certain period of operation, the filter bag will become dirty, so that it will be necessary to replace it with an unused bag or with a bag previously cleaned, it being recalled that this type of bag 10 filter can be passed through a washing machine. Generally, in normal operation, it is necessary to change the bag every fortnight approximately. It is understood, however, that it may be advantageous for the user to space the change time even more, without detriment to the quality of filtration.
A partir de ces caractéristiques techniques, le problème que se propose de résoudre l'invention est de retarder le dépôt des particules ou autres impuretés susceptibles d'encrasser la poche filtrante de manière à retarder au maximum son remplacement, ce qui permet à l'utilisateur une absence 20 prolongée, sans être obligé de nettoyer la poche. From these technical characteristics, the problem which the invention proposes to solve is to delay the deposition of particles or other impurities liable to clog the filter bag so as to delay its replacement as much as possible, which allows the user a prolonged absence, without having to clean the pocket.
Pour résoudre un tel problème, l'intérieur de la ou des poches filtrante(s) présente(nt) des agencements aptes à créer, sous l'effet de l'aspiration, un mouvement tourbillonnaire par effet de l'eau par effet de 25 VORTEX, de manière à retarder le dépôt de particules ou impuretés sur la poche, en les maintenant en suspension dans l'eau Pour obtenir un tel résultat sur le plan technique, plusieurs formes de réalisations peuvent être envisagées. To solve such a problem, the interior of the filter bag (s) has (s) arrangements capable of creating, under the effect of the suction, a swirling movement by the effect of water by the effect of 25 VORTEX, so as to delay the deposition of particles or impurities on the bag, by keeping them in suspension in water To obtain such a result on the technical level, several embodiments can be envisaged.
Selon une première forme de réalisation, les agencements sont 5 constitués par un organe tubulaire sous forme d'un corps cylindrique creux positionné à l'intérieur de la poche filtrante, ledit corps présentant périphériquement une pluralité d'ouvertures profilées en communication avec des profilés pour assurer la mise en mouvement tourbillonnaire de l'eau introduite dans ledit corps cylindrique. According to a first embodiment, the arrangements consist of a tubular member in the form of a hollow cylindrical body positioned inside the filter bag, said body peripherally having a plurality of profiled openings in communication with profiles for ensuring the vortex movement of the water introduced into said cylindrical body.
Le corps cylindrique est formé sur la quasi-totalité de la hauteur de la poche, sensiblement en contact avec la paroi interne de ladite poche. The cylindrical body is formed over almost the entire height of the pocket, substantially in contact with the internal wall of said pocket.
Le corps cylindrique est rendu solidaire d'un organe de préfiltration disposé à l'entrée de la poche. The cylindrical body is made integral with a prefiltration member disposed at the entrance of the pocket.
Dans une autre forme de réalisation, les agencements sont constitués par un support cylindrique monté coaxialement à l'intérieur de la poche filtrante, ledit support présentant périphériquement des profilés en forme de pâles aptes à assurer la mise en mouvement tourbillonnaire de l'eau introduite dans la poche, et à garantir la mise en suspension des particules à 20 filtrer dans l'axe de la poche filtrante retardant ainsi leur dépôt sur ladite poche. In another embodiment, the arrangements consist of a cylindrical support mounted coaxially inside the filter bag, said support having peripherally pale-shaped profiles capable of ensuring the vortex movement of the water introduced into the bag, and to guarantee the suspension of the particles to be filtered in the axis of the filter bag, thus delaying their deposition on said bag.
Les pâles sont fixes ou montées libres en rotation. The blades are fixed or mounted free to rotate.
Le support tubulaire est rendu solidaire d'un organe de préfiltration disposé à l'entrée de la poche. The tubular support is made integral with a prefiltration member disposed at the entrance to the bag.
L'invention est exposée ci-après plus en détail à l'aide des figures des dessins annexés dans lesquels: - La figure 1 est une vue à caractère schématique montrant l'application de la poche filtrante dans un ensemble compact de filtration pour bassin de piscine. The invention is set out below in more detail with the aid of the figures of the appended drawings in which: - Figure 1 is a schematic view showing the application of the filter bag in a compact filtration unit for swimming pool.
- La figure 2 est une vue en coupe longitudinale d'un élément support 5 de la poche filtrante équipé d'agencements aptes à créer, sous l'effet de l'aspiration, un mouvement tourbillonnaire de l'eau. - Figure 2 is a longitudinal sectional view of a support element 5 of the filter bag equipped with arrangements capable of creating, under the effect of the suction, a swirling movement of water.
- La figure 3 est une vue en coupe transversale considérée selon la ligne 3-3 de la figure 2. - Figure 3 is a cross-sectional view taken along line 3-3 of Figure 2.
- La figure 4 est une vue semblable à la figure 1 montrant une autre 10 forme de réalisation des agencements aptes à créer sous l'effet de l'aspiration un mouvement tourbillonnaire de l'eau. FIG. 4 is a view similar to FIG. 1 showing another embodiment of the arrangements capable of creating, under the effect of the suction, a vortex movement of the water.
- La figure 5 est une vue en coupe transversale considérée selon la ligne 5-5 de la figure 4. - Figure 5 is a cross-sectional view taken along line 5-5 of Figure 4.
On a illustré, figure 1, à titre d'exemple indicatif non limitatif, un ensemble compact de filtration de l'eau présentant un compartiment de filtration (A) immergé ou en contact avec l'eau du bassin de la piscine et un compartiment (B) situé à l'extérieur du bassin de la piscine et recevant des moyens de pompage. Illustrated, FIG. 1, by way of nonlimiting example, a compact water filtration assembly having a filtration compartment (A) submerged or in contact with the water of the swimming pool basin and a compartment ( B) located outside the swimming pool and receiving pumping means.
Le compartiment de filtration (A) présente tout type d'agencement interne pour permettre le montage de manière amovible d'une ou plusieurs poches filtrantes (1). Par exemple, si l'on considère l'exemple illustré aux figures des dessins, le compartiment de filtration (1) présente intérieurement 25 un bol ou corps cylindrique (2), dont la partie supérieure présente une collerette pour la fixation de manière amovible de la poche filtrante (1), à l'intérieur du cylindre, en combinaison avec généralement un préfiltre (7) La poche filtrante est de forme longitudinale tronconique. The filtration compartment (A) has any type of internal arrangement to allow the removable mounting of one or more filter bags (1). For example, if we consider the example illustrated in the figures of the drawings, the filtration compartment (1) has internally a bowl or cylindrical body (2), the upper part of which has a collar for detachably fixing the the filter bag (1), inside the cylinder, in combination with generally a prefilter (7) The filter bag is of frustoconical longitudinal shape.
Le fond du cylindre (2) est en communication, par tout moyen connu et approprié, avec le compartiment de pompage. Par exemple, le fond du 5 cylindre (2) est relié à un conduit d'aspiration (3). Bien évidemment, l'exemple de montage de la poche filtrante dans le compartiment de filtration, est donné à titre indicatif, nullement limitatif. Par exemple, la poche filtrante peut être montée dans des agencements du compartiment de filtration du type de ceux définis dans la demande de brevet FR 0207043 10 non encore publiée. The bottom of the cylinder (2) is in communication, by any known and appropriate means, with the pumping compartment. For example, the bottom of the cylinder (2) is connected to a suction duct (3). Obviously, the example of mounting the filter bag in the filtration compartment is given for information, not limiting. For example, the filter bag can be mounted in arrangements of the filtration compartment of the type defined in patent application FR 0207043 10 not yet published.
Selon une caractéristique à la base de l'invention, l'intérieur de la ou des poche(s) filtrantes présente(nt) des agencements aptes à créer, sous l'effet de l'aspiration et d'une manière concomitante à la mise en dépression 15 du cylindre, un mouvement tourbillonnaire de l'eau, créant un effet de VORTEX de manière à retarder le dépôt des particules ou autres impuretés sur les parois internes de ladite poche (1), en les maintenant en suspension. According to a characteristic underlying the invention, the interior of the filter bag (s) has (s) arrangements capable of creating, under the effect of the suction and in a concomitant manner when put in depression 15 of the cylinder, a swirling movement of the water, creating a VORTEX effect so as to delay the deposition of particles or other impurities on the internal walls of said pocket (1), keeping them in suspension.
Plusieurs formes de réalisations peuvent être envisagées pour obtenir 20 ce résultat et cette fonction techniques. Several embodiments can be envisaged to obtain this technical result and function.
Selon la forme de réalisation des figures 2 et 3, la poche filtrante (1) reçoit intérieurement un organe tubulaire (4) formant un corps cylindrique creux ouvert à l'une de ses extrémités au niveau de l'ouverture de la poche 25 filtrante (1) et fermée à son autre extrémité par un fond. Le cylindre (4) présente une pluralité d'ouvertures (4a) en communication avec des profilés (4b) pour assurer la mise en mouvement tourbillonnaire de l'eau, introduite dans le cylindre (4). According to the embodiment of Figures 2 and 3, the filter bag (1) internally receives a tubular member (4) forming a hollow cylindrical body open at one of its ends at the opening of the filter bag ( 1) and closed at its other end by a bottom. The cylinder (4) has a plurality of openings (4a) in communication with profiles (4b) to ensure the vortex movement of the water introduced into the cylinder (4).
Comme le montre la figure 2, le corps cylindrique (4) s'étend sur la quasi-totalité de la hauteur de la poche (1) et est sensiblement en contact 5 avec la paroi interne de cette dernière. Par exemple, le corps cylindrique (1) peut être rendu solidaire de l'organe de préfiltration (7) monté au niveau de l'ouverture de la poche filtrante (1). As shown in FIG. 2, the cylindrical body (4) extends over almost the entire height of the pocket (1) and is substantially in contact with the internal wall of the latter. For example, the cylindrical body (1) can be made integral with the prefiltration member (7) mounted at the opening of the filter bag (1).
Selon la forme de réalisation des figures 4 et 5, la poche filtrante (1) 10 reçoit intérieurement et d'une manière coaxiale, un support (5) rendu solidaire, par exemple de l'organe de préfiltration (7). Le support (5) présente périphériquement des profilés en forme de pâles (6) aptes assurer la mise en mouvement tourbillonnaire de l'eau introduite dans la poche, comme indiqué précédemment. Les pâles (6) sont montées fixement par 15 rapport au support cylindrique (5) ou bien sont montées libres en rotation. According to the embodiment of Figures 4 and 5, the filter bag (1) 10 receives internally and in a coaxial manner, a support (5) made integral, for example the prefiltration member (7). The support (5) peripherally has profiles in the form of blades (6) capable of ensuring the vortex movement of the water introduced into the pocket, as indicated above. The blades (6) are fixedly mounted relative to the cylindrical support (5) or else are mounted free to rotate.
Les avantages ressortent bien de la description, en particulier, on souligne et on rappelle que l'effet tourbillonnaire obtenu a pour effet de retarder d'une manière significative le dépôt des impuretés contre la paroi 20 interne de la poche filtrante. The advantages clearly emerge from the description, in particular, it is emphasized and recalled that the swirling effect obtained has the effect of significantly delaying the deposition of impurities against the internal wall of the filter bag.
Claims (8)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0303801A FR2852860B1 (en) | 2003-03-26 | 2003-03-26 | DEVICE FOR FILTERING THE WATER OF A POOL BASIN BY MEANS OF AT LEAST ONE FILTER POCKET |
| PCT/FR2004/000703 WO2004087288A2 (en) | 2003-03-26 | 2004-03-23 | Device for filtering water of a swimming pool with at least one filtering bag |
| TW093107980A TW200500128A (en) | 2003-03-26 | 2004-03-24 | Device for filtering the water of a swimming pool by means of at least one filtering bag |
| ARP040101005A AR043927A1 (en) | 2003-03-26 | 2004-03-25 | WATER FILTRATION DEVICE OF A SWIMMING POOL THROUGH AT LEAST A FILTER BAG |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0303801A FR2852860B1 (en) | 2003-03-26 | 2003-03-26 | DEVICE FOR FILTERING THE WATER OF A POOL BASIN BY MEANS OF AT LEAST ONE FILTER POCKET |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2852860A1 true FR2852860A1 (en) | 2004-10-01 |
| FR2852860B1 FR2852860B1 (en) | 2006-06-02 |
Family
ID=32947226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0303801A Expired - Fee Related FR2852860B1 (en) | 2003-03-26 | 2003-03-26 | DEVICE FOR FILTERING THE WATER OF A POOL BASIN BY MEANS OF AT LEAST ONE FILTER POCKET |
Country Status (4)
| Country | Link |
|---|---|
| AR (1) | AR043927A1 (en) |
| FR (1) | FR2852860B1 (en) |
| TW (1) | TW200500128A (en) |
| WO (1) | WO2004087288A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009115733A2 (en) * | 2008-03-07 | 2009-09-24 | Claude Brenot | Method and system of filtering swimming pool water |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05329308A (en) * | 1992-06-02 | 1993-12-14 | Yatsuku Filter Syst:Kk | Strainer |
| US5472604A (en) * | 1994-12-06 | 1995-12-05 | Yang; Mu-Tsang | Filtration device with swiveling spray tube |
| JPH08103607A (en) * | 1994-10-06 | 1996-04-23 | Reika Kogyo Kk | Filter |
| US5611434A (en) * | 1994-01-18 | 1997-03-18 | Voith Sulzer Stoffaufbereitung Gmbh | Rotor for a screen grader |
| US5632907A (en) * | 1995-12-26 | 1997-05-27 | Norbury; Fritz | Traveling backwash manifold for a centrifuge |
| US6010012A (en) * | 1997-11-03 | 2000-01-04 | Beloit Technologies, Inc. | Fluidizing detrashing impeller |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2390841A (en) * | 1943-01-25 | 1945-12-11 | Longden Erich | Filter |
| US3391787A (en) * | 1966-04-18 | 1968-07-09 | Beloit Corp | Porous cone cleaner |
| US4048067A (en) * | 1975-06-12 | 1977-09-13 | Phillips Petroleum Company | Filtering process and apparatus |
| JPH09150016A (en) * | 1995-11-29 | 1997-06-10 | Asahi Kikai Seisakusho:Kk | Filtration method, filtration apparatus, and filtration system using same |
| JPH09290104A (en) * | 1996-04-25 | 1997-11-11 | Toyo Denki Kogyosho:Kk | Apparatus for processing fluid containing solid matter |
-
2003
- 2003-03-26 FR FR0303801A patent/FR2852860B1/en not_active Expired - Fee Related
-
2004
- 2004-03-23 WO PCT/FR2004/000703 patent/WO2004087288A2/en active Application Filing
- 2004-03-24 TW TW093107980A patent/TW200500128A/en unknown
- 2004-03-25 AR ARP040101005A patent/AR043927A1/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05329308A (en) * | 1992-06-02 | 1993-12-14 | Yatsuku Filter Syst:Kk | Strainer |
| US5611434A (en) * | 1994-01-18 | 1997-03-18 | Voith Sulzer Stoffaufbereitung Gmbh | Rotor for a screen grader |
| JPH08103607A (en) * | 1994-10-06 | 1996-04-23 | Reika Kogyo Kk | Filter |
| US5472604A (en) * | 1994-12-06 | 1995-12-05 | Yang; Mu-Tsang | Filtration device with swiveling spray tube |
| US5632907A (en) * | 1995-12-26 | 1997-05-27 | Norbury; Fritz | Traveling backwash manifold for a centrifuge |
| US6010012A (en) * | 1997-11-03 | 2000-01-04 | Beloit Technologies, Inc. | Fluidizing detrashing impeller |
Non-Patent Citations (2)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 018, no. 157 (C - 1180) 16 March 1994 (1994-03-16) * |
| PATENT ABSTRACTS OF JAPAN vol. 1996, no. 08 30 August 1996 (1996-08-30) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009115733A2 (en) * | 2008-03-07 | 2009-09-24 | Claude Brenot | Method and system of filtering swimming pool water |
| WO2009115733A3 (en) * | 2008-03-07 | 2009-12-10 | Claude Brenot | Method and system of filtering swimming pool water |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200500128A (en) | 2005-01-01 |
| WO2004087288A2 (en) | 2004-10-14 |
| AR043927A1 (en) | 2005-08-17 |
| WO2004087288A3 (en) | 2004-11-25 |
| FR2852860B1 (en) | 2006-06-02 |
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| CL | Concession to grant licences | ||
| ST | Notification of lapse |
Effective date: 20091130 |