EP2584202A2 - Filtering device for supply pipe of a swimming-pool pump - Google Patents

Filtering device for supply pipe of a swimming-pool pump Download PDF

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Publication number
EP2584202A2
EP2584202A2 EP12306287.9A EP12306287A EP2584202A2 EP 2584202 A2 EP2584202 A2 EP 2584202A2 EP 12306287 A EP12306287 A EP 12306287A EP 2584202 A2 EP2584202 A2 EP 2584202A2
Authority
EP
European Patent Office
Prior art keywords
tubular
basket
filter bag
filtration device
casing
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
EP12306287.9A
Other languages
German (de)
French (fr)
Other versions
EP2584202A3 (en
EP2584202B1 (en
Inventor
Marc Chiron
Mikaël Lie
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Individual
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Individual
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Publication of EP2584202A2 publication Critical patent/EP2584202A2/en
Publication of EP2584202A3 publication Critical patent/EP2584202A3/en
Application granted granted Critical
Publication of EP2584202B1 publication Critical patent/EP2584202B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/12—Devices or arrangements for circulating water, i.e. devices for removal of polluted water, cleaning baths or for water treatment
    • E04H4/1209—Treatment of water for swimming pools
    • E04H4/1245—Recirculating pumps for swimming pool water
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/12—Devices or arrangements for circulating water, i.e. devices for removal of polluted water, cleaning baths or for water treatment
    • E04H4/1209—Treatment of water for swimming pools
    • E04H4/1272—Skimmers integrated in the pool wall

Definitions

  • the present invention relates to the general field of swimming pool pumps, and more particularly the filtration devices intended to equip their supply duct.
  • the supply duct of a swimming pool pump is conventionally equipped with a filtering device, still commonly called a "pre-filter", so as to retain the impurities liable to deteriorate its operation.
  • This filtration device usually comprises a rigid basket of generally tubular shape with a bottom at the bottom and open at the top; the side wall, and possibly the bottom, consist of a perforated grid.
  • these filter baskets are made of injected plastic material (see for example the document U.S. 4,773,823 ).
  • the Applicant has developed a new filtration device structure for supply duct of a pool pump which is of interest, while remaining simple and economical structure, to capture more effectively the impurities ( even very fine).
  • the filtration device comprises a rigid basket which comprises a tubular envelope consisting of a grid having meshes, which tubular envelope is provided with an inner surface and an outer surface, and has a lateral opening for the entry of the water to be filtered in said basket; and this filtration device is characterized in that it comprises a filter bag which is attached in said basket, facing the inner surface of its tubular casing; this filter bag, permeable to liquids, comprises meshes whose dimensions are smaller than the mesh size of said tubular basket envelope; this filter bag is provided with a lateral opening whose dimensions correspond, at least approximately, to the dimensions of said lateral opening of the tubular basket envelope; and said filtering device also comprises fixing means, on the one hand, for securing together said basket and said filter bag and, on the other hand, for centering said lateral openings relative to each other, in order to ensuring the entry of water into said filter bag by passing through said centered lateral openings.
  • the aforementioned securing means advantageously cooperate with the periphery of the lateral opening of the filter bag and the periphery of the lateral opening of the tubular casing of the basket, so as to at least limit the passage of water between said associated perimeters .
  • the securing means advantageously consist of a fixing piece, attached inside the filter bag, which comprises an L-section connecting part comprising: a tubular section intended to be housed through the lateral opening of the filter bag and the lateral opening of the tubular basket casing, the outer surface of which matches, with the game, said lateral openings centered, and - a rear flange, connected with a border rear of said tubular section, intended to be supported on the periphery of the lateral opening of the filter bag.
  • the lateral opening of the tubular basket casing is advantageously defined by a tubular section, and the outer surface of the tubular section of the fixing piece advantageously matches, with the clearance, the inner surface of the tubular section of the tubular casing of basket.
  • the tubular section of the basket is preferably projecting on the side of its outer surface.
  • the fastener also advantageously comprises a semi-rigid holding collar which is positioned in the filter bag so as to match the latter according to an annular inner band; this holding collar and the associated connecting portion together define a perimeter equal or substantially equal to the perimeter of the inner surface of the tubular casing of the basket.
  • the retaining collar advantageously consists of two semi-rigid arms, a first of their ends is secured to the connecting portion, on either side of the latter, and whose second ends are secured together by connecting means .
  • the connecting means between the arms advantageously comprise a ring, produced in one piece with the second end of a first arm, which ring defines an opening whose section corresponds, with play, to the section of the second arm intended for be introduced through said ring.
  • the tubular casing of the basket has a generally cylindrical shape delimited by a bottom edge connected to a bottom wall and by an upper edge delimiting an upper opening;
  • the filter bag also has a shape cylindrical general, corresponding to the game close to the inner surface of said basket, with a side wall delimited - by a bottom edge connected to a bottom wall, and - by an upper edge defining an upper opening.
  • the mesh of the filter bag has a size of between 1 and 2 mm side, and the meshes of the lateral grid of the basket have a size of between 3 and 4 mm side.
  • the filtration device 1 (or "pre-filter") is intended to equip a supply duct C of a pool pump P.
  • the supply duct C comprises in particular a chamber C1 , closed by an upper lid C11 , within which is housed the filtration device 1.
  • the filtration device 1 is shown in more detail on the Figures 2 to 4 .
  • This filtration device 1 here comprises an assembly of three separate parts, namely: - a rigid outer basket 2, - a filter bag 3, which is housed in this rigid basket 2, and - a fastener 4, to secure together said rigid basket 2 and said filter bag 3.
  • the rigid basket 2 is shown in more detail on the figures 3 and 5 .
  • This rigid basket 2 consists of a one-piece piece, obtained by injection molding of a plastic material of polypropylene type.
  • This rigid basket 2 of generally cylindrical shape, comprises a tubular envelope 5 (or tubular wall) delimited by a lower edge 6, connected to a bottom wall 7 ( figure 3 ), and - by an upper edge 8, connected to a collar 9 projecting outwards and delimiting an upper opening 10.
  • the tubular casing 5 is here of circular section, with a constant diameter over its entire height.
  • This tubular envelope 5 consists of a grid, having meshes 51, here of rectangular shape, the size of which is for example 3.5 mm by 3 mm side.
  • the bottom wall 7 consists of a disk-shaped element, either solid or grid-shaped having rectangular meshes 71 whose size is for example also 3.5 mm by 3 mm.
  • the tubular envelope 5 and the bottom wall 7 together define an inner surface 11 and an outer surface 12, formed by their inner surfaces 5a, 7a respectively and with their outer surfaces 5 b, 7 b respectively ( figure 3 ).
  • the tubular envelope 5 On the side of its upper edge 8, the tubular envelope 5 further comprises a lateral opening 13 for the entry of the water to be filtered into the basket 2.
  • the lateral opening 13 is here of generally oblong or oval shape, the major axis of which extends in a plane L perpendicular to the longitudinal axis 5 'of the tubular envelope 5 ( figure 3 ).
  • this lateral opening 13 may have any other desired shape, in particular circular.
  • This lateral opening 13 of the basket 2 is defined by a one-piece tubular section 14 projecting on the side of the outer surface 12.
  • the inner surface 14a of the tubular section 14 matches the contour of the side opening 13, and has also here an oblong section (or oval).
  • the filter bag 3 is in turn represented in more detail on the figures 3 and 6 .
  • This filter bag 3 is for example made of a flexible material, preferably a flexible thermoplastic polymer material, preferably textilene (polyester blend, whose fibers are covered with polyvinyl chloride).
  • This filter bag 3 is permeable to liquids, and for this it comprises meshes 19 whose dimensions are smaller than the dimensions of the meshes constituting the basket 2 ( figure 3 ).
  • the meshes 19 of the filter bag 3 thus advantageously have a rectangular shape, for example with a size of 1.3 mm by 1.1 mm.
  • the meshes 19 have an area less than 2 mm 2 , more preferably less than 1.6 mm 2 , more preferably between 1 and 1.6 mm 2 .
  • the meshes 19 may still have a circular or other general shape, with dimensions as specified above.
  • This filter bag 3 is also of generally cylindrical shape, with a tubular side wall 20 delimited - by a bottom edge 21, connected to a bottom wall 22, and - by an upper edge 23 delimiting a circular upper opening 24.
  • the lateral tubular wall 20 and bottom wall 22 together define an inner surface 3a and an outer surface 3b, formed by their inner surfaces 20, 22a respectively and with their outer surfaces 20 b, 22 b respectively ( figure 3 ).
  • the filter bag 3 has identical or similar dimensions to the inner surface 11 of the rigid basket 2, so that this filter bag 3 matches the rigid basket 2 when it is attached to the latter ( figures 2 and 3 ).
  • the diameter of the tubular side wall 20 and bottom wall 22 of the bag filter 3 corresponds to the clearance, to the diameter of the inner surface 5a of the tubular housing 5 and the bottom 7
  • the height of the side tubular wall 20 of the filter bag 3 corresponds approximately to the height of the tubular casing 5 of the rigid basket 2, or is a little less than this height.
  • the lateral tubular wall 20 of this filter bag 3 is further provided with a lateral opening 25 whose shape and dimensions correspond, at least approximately, to the shape and dimensions of the lateral opening 13 of the tubular envelope 5 of the basket 2.
  • This filter bag 3 is advantageously obtained by assembling two pieces, one forming the bottom wall 22 and the other forming the lateral tubular wall 20; the latter is advantageously obtained by bending or bending a rectangular piece whose lateral end edges are associated with each other.
  • the various fastenings are advantageously obtained by heat sealing or sewing.
  • the fastener 4 is in turn represented in more detail on the figures 3 , 7 and 8 .
  • This fastener 4 is intended to be attached inside the filter bag 3 housed in the rigid basket 2, to form fastening means capable, on the one hand, to secure together the rigid basket 2 and the filter bag 3 and, secondly, to center the lateral opening 13 of the rigid basket 2 and the lateral opening 25 of the filter bag 3 relative to each other.
  • the fastener 4 consists of a one-piece piece, made by injection molding of a plastic material.
  • This fixing piece 4 made consists - of a connecting portion 30 for the positioning and centering of the lateral openings 13, 25 mentioned above, and - of a retaining portion 31, in the form of a collar, for locking in position of the fastener 4.
  • the rear flange 33 extends in a plane perpendicular to the axis of the tubular section 32.
  • the tubular portion 32 is defined - by two annular surfaces, one internal 32 a and external 32 b another, and - two lateral edges, one before 32 c and the other rear 32 d.
  • the inner annular surfaces 32 and external 32 b extend parallel relative to each other.
  • the inner surface 32 is intended to delimit a passage for the water to pre-filter, as discussed further below in connection with Figures 2 to 4 .
  • the outer surface 32 b of the tubular section 32 is adapted so that its shape and dimensions correspond to the clearance, the dimensions of the lateral openings 13 and 25 centered, and the inner surface 14a of the tubular section 14 of the basket 2.
  • the rear flange 33 is delimited by two surfaces, one front 33 a (the side facing the tubular portion 32) and the other rear 33b, and by two lateral edges, one inner and the other 33 c outside 33 d .
  • the rear edge 32 d of the tubular section 32 is connected to the inner edge 33c of the rear flange 33.
  • the holding portion 31 is in the form of a semi-rigid collar which consists of two flexible rectilinear arms 35 and 36 semi-rigid, able to be deformed by bending so as to apply a reversible curvature.
  • This first end 35 a and 36a of the arms 35 and 36 is connected at the side areas through which passes the major axis 30 'of the connecting portion 30 (or the major axis 32' of the tubular section 32); and the arms 35 and 36 extend in an aligned manner, in the extension of this major axis.
  • the connecting means between the second ends 35 b, 36 b of the arms 35, 36 comprise a ring 35 c integrally formed with the second end 35 b of the first arm 35.
  • This ring 35c defines a through opening 35 d , whose axis extends parallel to the first arm 35 and whose section corresponds, with play, to the section of the second arm 36.
  • the two arms 35 and 36 are intended to be bent in an arc of the side of the rear surface 33b of the rear flange 33 of the connecting portion 30.
  • the second end 36 b of the second arm 36 is inserted through the opening 35 of the ring 35 c provided on the first arm 35 so as to define together the rigid circular collar 31.
  • the second arm 36 can advantageously slide freely through this ring 35 c or present a frictional force (low or high).
  • the filter bag 3 is first suitably reported within its rigid basket 2 dedicated. Where appropriate, the positioning is simplified by the flexibility of this filter bag 3.
  • the filter bag 3 is positioned with its upper opening 24 extending in the plane, or at least approximately in the plane, of the upper opening 10 of the rigid basket 2.
  • the outer surface 3b of the filter bag 3 then covers inner surface 11 of the basket 2, with firstly their tubular walls 20, 5 opposite and secondly their bottom walls 22, 7 superimposed.
  • This filter bag 3 is further oriented so that its lateral opening 25 extends opposite the lateral opening 13 of the rigid basket 2.
  • the operator can then report the attachment piece 4 as shown on the Figures 2 to 4 .
  • the two semi-rigid arms 35 and 36 of the fastening piece 4 are properly secured together so as to form the circular semi-rigid collar 31 as described above in relation to the figure 8 .
  • This connection is adjusted so that the diameter defined by the semi-rigid collar 31 obtained is a little smaller than the diameter of the inner surface 11 of the rigid basket 2 in which it is attached (or more precisely a little smaller than the diameter of the surface 20 a of the lateral tubular wall 20 of the filter bag 3 in a horizontal plane passing through its lateral opening 25).
  • the operator then positions the connecting portion 30 of the fastener 4 by the inside of the filter bag 3, so as to cooperate with the lateral openings 13 and 25 associated and the tubular section 14 of the basket 2.
  • the fastener 4 is introduced into the filter bag 3, then the tubular section 32 of its connecting portion 30 is housed through the lateral openings 13 and 25 centered and also the tubular section 14 of the basket 2 by a translation introduction from inside to outside.
  • the front surface 33a of the rear flange 33 of the connecting portion 30 comes to bear on the periphery 25 to the lateral opening 25 of the filter bag 3 ( Figures 3 and 4 ).
  • This periphery 25 to the lateral opening 25 of the filter bag 3 is thus sandwiched between - the rear flange 33 and - the edge 13a of the side opening 13 of the rigid basket 2 (or more precisely the part of the inner surface 5a of the tubular casing 5 of the rigid basket 2 surrounding the lateral opening 13 and which lies opposite the rear flange 33).
  • the holding collar 31 is positioned within the filter bag 3 so as to fit the latter according to an annular inner band extending in a plane L which is perpendicular to the longitudinal axis 1 'of the filtration device 1 and which passes through the lateral opening 13 of the rigid basket 2 ( figure 3 ).
  • This collar 31 tends to increase in diameter because of the elasticity of the arms 35, 36 (or is adjusted in diameter manually, as a function of the friction at its ring 35 c ) until its diameter corresponds to the diameter of the inner surface 20a of the tubular side wall 20 of the filter bag 3 rests against the tubular casing 5 of the rigid basket 2, and thus tends to maintain the connecting portion 30 associated in position.
  • the holding collar 31, and the associated connecting portion 30, together define a perimeter (in this case a circumference) equal to, or substantially equal to, the perimeter (in this case also a circumference) of the surface inside 5 a of the tubular envelope 5 of the rigid basket 2 and more precisely at the perimeter of the inner surface 20 a of the lateral tubular wall 20 of the filter bag 3.
  • the filter bag 3 and the connecting piece 4 are joined together, the rear flange 33 is secured to the periphery 25 a of the side opening 25 of the filter bag 3 (for example by heat), its tubular section 32 passes through the lateral opening 25 of this pocket 3, and its arms 35 and 36 extend facing the tubular wall 20.
  • the assembled filtration device 1 can then be attached to the supply pipe C of the swimming pool pump P with the tubular section 14 of the rigid basket 2 connected to the upstream section C2 .
  • the water to be filtered then travels through the filter bag 3 which retains the impurities (depending on the size of the mesh), then through the rigid basket 2.
  • the filtered water can then flow in the downstream section C3 of the supply line C to the pump P.
  • the filter bag 3 has to be changed (for example if it is clogged, deteriorated or to be cleaned, it suffices for the operator to exert a pull on the retaining collar 31 of the fastener 4 so as to extract its part connecting 30 relative to the orifices 13 and 25 associated.
  • the filter bag 3 can then be extracted through the upper orifice 10 of the basket 2 for replacement or cleaning.
  • the filtration device 1 thus has the advantage of allowing a particularly efficient filtration, while being of particularly simple and inexpensive structure, its various component parts being able to be obtained by technologies and very economical materials.
  • it is particularly simple in terms of maintenance and maintenance, which makes it possible to maintain optimum filtration qualities over time, as well as protection of the hydraulic assembly of the pump.
  • the current rigid baskets may be equipped with a filter bag 3 associated with fastening means 4, to obtain a filtration device according to the invention.
  • the filter bag 3 and possibly the fastening means 4 can then be accessories that can be sold independently of a rigid basket, to equip a basket without a filter bag or to replace a used filter bag.
  • the rigid basket 2, the filter bag 3 and the fastener 4 can still be marketed in the form of a "kit” or a ready-to-assemble.

Abstract

The device (1) has a liquid-permeable filtering bag (3) comprising a tubular side wall (20) connected to a rigid basket (2) opposite an inner surface (5a) of tubular housing (5) of the basket. The bag has meshes (19) whose dimensions are lower with respect to dimensions of meshes (51) of the housing. The bag has a side opening (25) whose dimensions correspond to that of oblong/oval side opening (13) of the housing. A fixing unit (4) secures the basket and the bag and centres the openings with respect to each other so as to assure entry of water into the bag by passing through the openings.

Description

La présente invention concerne le domaine général des pompes de piscines, et plus particulièrement les dispositifs de filtration destinés à équiper leur conduit d'alimentation.The present invention relates to the general field of swimming pool pumps, and more particularly the filtration devices intended to equip their supply duct.

Le conduit d'alimentation d'une pompe de piscine est classiquement équipé d'un dispositif de filtration, encore couramment appelé « pré-filtre », de manière à retenir les impuretés susceptibles de détériorer son fonctionnement.The supply duct of a swimming pool pump is conventionally equipped with a filtering device, still commonly called a "pre-filter", so as to retain the impurities liable to deteriorate its operation.

Ce dispositif de filtration comporte habituellement un panier rigide de forme globalement tubulaire avec un fond en partie inférieure et ouvert en partie supérieure ; la paroi latérale, et éventuellement le fond, consistent en une grille perforée. Pour des raisons essentiellement économiques ces paniers de filtration sont réalisés en matière plastique injectée (voir par exemple le document US-4 773 823 ).This filtration device usually comprises a rigid basket of generally tubular shape with a bottom at the bottom and open at the top; the side wall, and possibly the bottom, consist of a perforated grid. For essentially economic reasons these filter baskets are made of injected plastic material (see for example the document U.S. 4,773,823 ).

Cependant, les techniques de moulage par injection limitent la finesse possible des mailles de cette grille perforée. On obtient au mieux des mailles de l'ordre de 2 à 2,5 mm de côté ou de diamètre, ce qui s'avère en pratique relativement insuffisant en ce sens que les petites impuretés ne sont pas retenues et sont susceptibles d'entraîner des défaillances de la pompe placée en aval.However, injection molding techniques limit the fineness possible of the mesh of this perforated grid. At best meshes of the order of 2 to 2.5 mm of side or diameter are obtained, which proves in practice relatively insufficient in the sense that the small impurities are not retained and are likely to lead to failures of the downstream pump.

Pour remédier à ces inconvénients, la demanderesse a développé une nouvelle structure de dispositif de filtration pour conduit d'alimentation d'une pompe de piscine qui présente l'intérêt, tout en restant de structure simple et économique, de capter plus efficacement les impuretés (même très fines).To remedy these drawbacks, the Applicant has developed a new filtration device structure for supply duct of a pool pump which is of interest, while remaining simple and economical structure, to capture more effectively the impurities ( even very fine).

Pour cela, le dispositif de filtration selon l'invention comprend un panier rigide qui comporte une enveloppe tubulaire consistant en une grille présentant des mailles, laquelle enveloppe tubulaire est munie d'une surface intérieure et d'une surface extérieure, et comporte une ouverture latérale pour l'entrée de l'eau à filtrer dans ledit panier ;
et ce dispositif de filtration est caractérisé par le fait qu'il comporte une poche filtrante qui est rapportée dans ledit panier, en regard de la surface intérieure de son enveloppe tubulaire ; cette poche filtrante, perméable aux liquides, comporte des mailles dont les dimensions sont inférieures par rapport aux dimensions des mailles de ladite enveloppe tubulaire de panier ; cette poche filtrante est munie d'une ouverture latérale dont les dimensions correspondent, au moins approximativement, aux dimensions de ladite ouverture latérale de l'enveloppe tubulaire de panier ; et ledit dispositif de filtration comporte encore des moyens de fixation, d'une part, pour solidariser ensemble ledit panier et ladite poche filtrante et, d'autre part, pour centrer lesdites ouvertures latérales l'une par rapport à l'autre, afin d'assurer l'entrée d'eau dans ladite poche filtrante par passage au travers desdites ouvertures latérales centrées.For this, the filtration device according to the invention comprises a rigid basket which comprises a tubular envelope consisting of a grid having meshes, which tubular envelope is provided with an inner surface and an outer surface, and has a lateral opening for the entry of the water to be filtered in said basket;
and this filtration device is characterized in that it comprises a filter bag which is attached in said basket, facing the inner surface of its tubular casing; this filter bag, permeable to liquids, comprises meshes whose dimensions are smaller than the mesh size of said tubular basket envelope; this filter bag is provided with a lateral opening whose dimensions correspond, at least approximately, to the dimensions of said lateral opening of the tubular basket envelope; and said filtering device also comprises fixing means, on the one hand, for securing together said basket and said filter bag and, on the other hand, for centering said lateral openings relative to each other, in order to ensuring the entry of water into said filter bag by passing through said centered lateral openings.

Les moyens de solidarisation précités coopèrent avantageusement avec le pourtour de l'ouverture latérale de la poche filtrante et le pourtour de l'ouverture latérale de l'enveloppe tubulaire du panier, de sorte à au moins limiter le passage d'eau entre lesdits pourtours associés.The aforementioned securing means advantageously cooperate with the periphery of the lateral opening of the filter bag and the periphery of the lateral opening of the tubular casing of the basket, so as to at least limit the passage of water between said associated perimeters .

Selon une forme de réalisation préférée, les moyens de solidarisation consistent avantageusement en une pièce de fixation, rapportée à l'intérieur de la poche filtrante, qui comporte une partie de liaison à section en L comprenant : - un tronçon tubulaire, destiné à être logé au travers de l'ouverture latérale de la poche filtrante et de l'ouverture latérale de l'enveloppe tubulaire de panier, dont la surface extérieure épouse, au jeu près, lesdites ouvertures latérales centrées, et - une collerette arrière, raccordée avec une bordure arrière dudit tronçon tubulaire, destinée à venir prendre appui sur le pourtour de l'ouverture latérale de la poche filtrante.According to a preferred embodiment, the securing means advantageously consist of a fixing piece, attached inside the filter bag, which comprises an L-section connecting part comprising: a tubular section intended to be housed through the lateral opening of the filter bag and the lateral opening of the tubular basket casing, the outer surface of which matches, with the game, said lateral openings centered, and - a rear flange, connected with a border rear of said tubular section, intended to be supported on the periphery of the lateral opening of the filter bag.

L'ouverture latérale de l'enveloppe tubulaire de panier est avantageusement définie par un tronçon tubulaire, et la surface extérieure du tronçon tubulaire de la pièce de fixation épouse avantageusement, au jeu près, la surface intérieure du tronçon tubulaire de l'enveloppe tubulaire de panier.
Dans ce cadre, le tronçon tubulaire du panier est de préférence saillant du côté de sa surface extérieure.The lateral opening of the tubular basket casing is advantageously defined by a tubular section, and the outer surface of the tubular section of the fixing piece advantageously matches, with the clearance, the inner surface of the tubular section of the tubular casing of basket.
In this context, the tubular section of the basket is preferably projecting on the side of its outer surface.

Toujours selon cette forme de réalisation préférée, la pièce de fixation comporte encore avantageusement un collier de maintien semi-rigide qui est positionné dans la poche filtrante de sorte à épouser cette dernière selon une bande intérieure annulaire ; ce collier de maintien et la partie de liaison associée définissent ensemble un périmètre égal, ou pratiquement égal, au périmètre de la surface intérieure de l'enveloppe tubulaire du panier.Still according to this preferred embodiment, the fastener also advantageously comprises a semi-rigid holding collar which is positioned in the filter bag so as to match the latter according to an annular inner band; this holding collar and the associated connecting portion together define a perimeter equal or substantially equal to the perimeter of the inner surface of the tubular casing of the basket.

Le collier de maintien se compose avantageusement de deux bras semi-rigides dont une première de leurs extrémités est solidarisée avec la partie de liaison, de part et d'autre de cette dernière, et dont leurs secondes extrémités sont solidarisées ensemble par des moyens de liaison.The retaining collar advantageously consists of two semi-rigid arms, a first of their ends is secured to the connecting portion, on either side of the latter, and whose second ends are secured together by connecting means .

Dans ce cas, les moyens de liaison entre les bras comprennent avantageusement une bague, réalisée monobloc avec la seconde extrémité d'un premier bras, laquelle bague définit une ouverture dont la section correspond, au jeu près, à la section du second bras destiné à être introduit au travers de ladite bague.In this case, the connecting means between the arms advantageously comprise a ring, produced in one piece with the second end of a first arm, which ring defines an opening whose section corresponds, with play, to the section of the second arm intended for be introduced through said ring.

Selon encore une caractéristique particulière, l'enveloppe tubulaire du panier présente une forme générale cylindrique, délimitée par une bordure inférieure raccordée à une paroi de fond et par une bordure supérieure délimitant une ouverture supérieure ; la poche filtrante présente également une forme générale cylindrique, correspondant au jeu près à la surface intérieure dudit panier, avec une paroi latérale délimitée - par une bordure inférieure raccordée à une paroi de fond, et - par une bordure supérieure délimitant une ouverture supérieure.According to another particular characteristic, the tubular casing of the basket has a generally cylindrical shape delimited by a bottom edge connected to a bottom wall and by an upper edge delimiting an upper opening; the filter bag also has a shape cylindrical general, corresponding to the game close to the inner surface of said basket, with a side wall delimited - by a bottom edge connected to a bottom wall, and - by an upper edge defining an upper opening.

De préférence, les mailles de la poche filtrante ont une taille comprise entre 1 et 2 mm de côté, et les mailles de la grille latérale du panier ont une taille comprise entre 3 et 4 mm de côté.Preferably, the mesh of the filter bag has a size of between 1 and 2 mm side, and the meshes of the lateral grid of the basket have a size of between 3 and 4 mm side.

L'invention sera encore illustrée, sans être aucunement limitée, par la description suivante en relation avec les dessins annexés dans lesquels :

  • la figure 1 représente, de manière schématique, une pompe de piscine avec son conduit d'alimentation (en coupe longitudinale) équipé d'un dispositif de filtration selon l'invention ;
  • la figure 2 représente le dispositif de filtration selon l'invention, vu en perspective et du côté de son passage latéral pour l'entrée de l'eau à filtrer ;
  • la figure 3 représente le dispositif de filtration selon la figure 2, selon un plan de coupe vertical passant par son passage latéral d'entrée d'eau à filtrer ;
  • la figure 4 représente encore le dispositif de filtration selon la figure 2, selon une vue partielle et en coupe horizontale passant par son passage latéral ;
  • la figure 5 est une vue en perspective du panier rigide constitutif du dispositif de filtration selon les figures 2 à 4 ;
  • la figure 6 représente, en perspective, la poche filtrante constitutive du dispositif de filtration selon les figures 2 à 4, destinée à être rapportée dans le panier rigide selon la figure 5 ;
  • la figure 7 est une vue en perspective de la pièce de fixation constitutive du dispositif de filtration selon les figures 2 à 4, avec ses bras dans une configuration déployée ;
  • la figure 8 représente la pièce de fixation selon la figure 7, avec ses bras dans une configuration raccordée pour former un collier de maintien semi-rigide.
The invention will be further illustrated, without being limited in any way, by the following description in relation to the accompanying drawings in which:
  • the figure 1 represents, schematically, a swimming pool pump with its supply duct (in longitudinal section) equipped with a filtering device according to the invention;
  • the figure 2 represents the filtration device according to the invention, seen in perspective and on the side of its lateral passage for the entry of the water to be filtered;
  • the figure 3 represents the filtration device according to the figure 2 , according to a vertical sectional plane passing through its side passage of water inlet to be filtered;
  • the figure 4 still represents the filtration device according to the figure 2 , in a partial view and in horizontal section passing through its lateral passage;
  • the figure 5 is a perspective view of the rigid basket constituting the filtration device according to the Figures 2 to 4 ;
  • the figure 6 represents, in perspective, the filter bag constituting the filtration device according to the Figures 2 to 4 , intended to be carried in the rigid basket according to the figure 5 ;
  • the figure 7 is a perspective view of the constituent fastener of the filtration device according to the Figures 2 to 4 , with his arms in a deployed configuration;
  • the figure 8 represents the fastener according to the figure 7 , with its arms in a connected configuration to form a semi-rigid support collar.

Tel que représenté sur la figure 1, le dispositif de filtration 1 (ou « pré-filtre ») est destiné à équiper un conduit d'alimentation C d'une pompe de piscine P.As shown on the figure 1 , the filtration device 1 (or "pre-filter") is intended to equip a supply duct C of a pool pump P.

Le conduit d'alimentation C comporte en particulier une chambre C1, fermée par un couvercle supérieur C11, au sein de laquelle est logé le dispositif de filtration 1.The supply duct C comprises in particular a chamber C1 , closed by an upper lid C11 , within which is housed the filtration device 1.

Cette chambre C1 est raccordée à:

  • (i) un tronçon de conduite amont C2 pour l'entrée de l'eau, dont l'extrémité amont est raccordée par des canalisations à au moins une bonde située dans le bassin de la piscine (avantageusement au niveau d'un skimmer ou d'une traversée de paroi), et
  • (ii) un tronçon de conduite aval C3, raccordant la chambre de filtration C1 et la pompe P, pour le cheminement de l'eau pré-filtrée jusqu'à cette dernière.
This room C1 is connected to:
  • (i) an upstream pipe section C2 for the entry of water, the upstream end of which is connected by pipes to at least one bung located in the pool basin (advantageously at the level of a skimmer or a wall crossing), and
  • (ii) a downstream pipe section C3 , connecting the filtration chamber C1 and the pump P , for the flow of the pre-filtered water to the latter.

Le dispositif de filtration 1 est représenté plus en détails sur les figures 2 à 4.The filtration device 1 is shown in more detail on the Figures 2 to 4 .

Ce dispositif de filtration 1 comporte ici un assemblage de trois pièces distinctes, à savoir: - un panier rigide extérieur 2, - une poche filtrante 3, qui est logée dans ce panier rigide 2, et - une pièce de fixation 4, pour solidariser ensemble ledit panier rigide 2 et ladite poche filtrante 3.This filtration device 1 here comprises an assembly of three separate parts, namely: - a rigid outer basket 2, - a filter bag 3, which is housed in this rigid basket 2, and - a fastener 4, to secure together said rigid basket 2 and said filter bag 3.

Le panier rigide 2 est représenté plus en détails sur les figures 3 et 5.The rigid basket 2 is shown in more detail on the figures 3 and 5 .

Ce panier rigide 2 consiste en une pièce monobloc, obtenue par moulage par injection d'une matière plastique de type polypropylène.This rigid basket 2 consists of a one-piece piece, obtained by injection molding of a plastic material of polypropylene type.

Ce panier rigide 2, de forme générale cylindrique, comporte une enveloppe tubulaire 5 (ou paroi tubulaire) délimitée - par une bordure inférieure 6, raccordée à une paroi de fond 7 (figure 3), et - par une bordure supérieure 8, raccordée à une collerette 9 en saillie vers l'extérieur et délimitant une ouverture supérieure 10.This rigid basket 2, of generally cylindrical shape, comprises a tubular envelope 5 (or tubular wall) delimited by a lower edge 6, connected to a bottom wall 7 ( figure 3 ), and - by an upper edge 8, connected to a collar 9 projecting outwards and delimiting an upper opening 10.

L'enveloppe tubulaire 5 est ici de section circulaire, avec un diamètre constant sur toute sa hauteur.The tubular casing 5 is here of circular section, with a constant diameter over its entire height.

Cette enveloppe tubulaire 5 consiste en une grille, présentant des mailles 51, ici de forme rectangulaire, dont la taille est par exemple de 3,5 mm sur 3 mm de côté.This tubular envelope 5 consists of a grid, having meshes 51, here of rectangular shape, the size of which is for example 3.5 mm by 3 mm side.

La paroi de fond 7 consiste en un élément en forme de disque, soit pleine, soit en forme de grille présentant des mailles rectangulaires 71 dont la taille est par exemple également de 3,5 mm sur 3 mm de côté.The bottom wall 7 consists of a disk-shaped element, either solid or grid-shaped having rectangular meshes 71 whose size is for example also 3.5 mm by 3 mm.

L'enveloppe tubulaire 5 et la paroi de fond 7 délimitent ensemble une surface intérieure 11 et une surface extérieure 12, formées par leurs surfaces intérieures 5a, 7a respectives et par leurs surfaces extérieures 5b, 7b respectives (figure 3).The tubular envelope 5 and the bottom wall 7 together define an inner surface 11 and an outer surface 12, formed by their inner surfaces 5a, 7a respectively and with their outer surfaces 5 b, 7 b respectively ( figure 3 ).

Du côté de sa bordure supérieure 8, l'enveloppe tubulaire 5 comporte encore une ouverture latérale 13 pour l'entrée de l'eau à filtrer dans le panier 2.On the side of its upper edge 8, the tubular envelope 5 further comprises a lateral opening 13 for the entry of the water to be filtered into the basket 2.

L'ouverture latérale 13 est ici de forme générale oblongue ou ovale, dont le grand axe s'étend dans un plan L perpendiculaire à l'axe longitudinal 5' de l'enveloppe tubulaire 5 (figure 3).The lateral opening 13 is here of generally oblong or oval shape, the major axis of which extends in a plane L perpendicular to the longitudinal axis 5 'of the tubular envelope 5 ( figure 3 ).

De manière alternative, cette ouverture latérale 13 peut présenter toute autre forme souhaitée, notamment circulaire.Alternatively, this lateral opening 13 may have any other desired shape, in particular circular.

Cette ouverture latérale 13 du panier 2 est définie par un tronçon tubulaire monobloc 14, saillant du côté de la surface extérieure 12.This lateral opening 13 of the basket 2 is defined by a one-piece tubular section 14 projecting on the side of the outer surface 12.

En particulier, la surface intérieure 14a de ce tronçon tubulaire 14 épouse le contour de l'ouverture latérale 13, et présente ici également une section oblongue (ou ovale).In particular, the inner surface 14a of the tubular section 14 matches the contour of the side opening 13, and has also here an oblong section (or oval).

La poche filtrante 3 est quant à elle représentée plus en détails sur les figures 3 et 6.The filter bag 3 is in turn represented in more detail on the figures 3 and 6 .

Cette poche filtrante 3 est par exemple réalisée en un matériau souple, avantageusement en un matériau polymère thermoplastique souple, avantageusement en textilène (mélange de polyester, dont les fibres sont recouvertes de polychlorure de vinyle).This filter bag 3 is for example made of a flexible material, preferably a flexible thermoplastic polymer material, preferably textilene (polyester blend, whose fibers are covered with polyvinyl chloride).

Cette poche filtrante 3 est perméable aux liquides, et elle comporte pour cela des mailles 19 dont les dimensions sont inférieures par rapport aux dimensions des mailles constitutives du panier 2 (figure 3).This filter bag 3 is permeable to liquids, and for this it comprises meshes 19 whose dimensions are smaller than the dimensions of the meshes constituting the basket 2 ( figure 3 ).

Les mailles 19 de la poche filtrante 3 ont ainsi avantageusement une forme rectangulaire, avec par exemple taille de 1,3 mm sur 1,1 mm de côté.The meshes 19 of the filter bag 3 thus advantageously have a rectangular shape, for example with a size of 1.3 mm by 1.1 mm.

De manière générale, les mailles 19 ont une surface inférieure à 2 mm2, de préférence encore inférieure à 1,6 mm2, de préférence encore entre 1 et 1,6 mm2.In general, the meshes 19 have an area less than 2 mm 2 , more preferably less than 1.6 mm 2 , more preferably between 1 and 1.6 mm 2 .

Les mailles 19 peuvent présenter encore une forme générale circulaire ou autre, avec des dimensions telles que précisées ci-dessus.The meshes 19 may still have a circular or other general shape, with dimensions as specified above.

Cette poche filtrante 3 est également de forme générale cylindrique, avec une paroi latérale tubulaire 20 délimitée - par une bordure inférieure 21, raccordée à une paroi de fond 22, et - par une bordure supérieure 23 délimitant une ouverture supérieure circulaire 24.This filter bag 3 is also of generally cylindrical shape, with a tubular side wall 20 delimited - by a bottom edge 21, connected to a bottom wall 22, and - by an upper edge 23 delimiting a circular upper opening 24.

La paroi tubulaire latérale 20 et la paroi de fond 22 délimitent ensemble une surface intérieure 3a et une surface extérieure 3b, formées par leurs surfaces intérieures 20a, 22a respectives et par leurs surfaces extérieures 20b, 22b respectives (figure 3).The lateral tubular wall 20 and bottom wall 22 together define an inner surface 3a and an outer surface 3b, formed by their inner surfaces 20, 22a respectively and with their outer surfaces 20 b, 22 b respectively ( figure 3 ).

La poche filtrante 3 présente des dimensions identiques, ou similaires, à la surface intérieure 11 du panier rigide 2, de sorte que cette poche filtrante 3 épouse le panier rigide 2 lorsqu'elle est rapportée dans ce dernier (figures 2 et 3). En d'autres termes, le diamètre de la paroi tubulaire latérale 20 et de la paroi de fond 22 de la poche filtrante 3 correspond, au jeu près, au diamètre de la surface intérieure 5a de l'enveloppe tubulaire 5 et du fond 7 du panier rigide 2. De même, la hauteur de la paroi tubulaire latérale 20 de la poche filtrante 3 correspond, approximativement, à la hauteur de l'enveloppe tubulaire 5 du panier rigide 2, ou est un peu inférieure à cette hauteur.The filter bag 3 has identical or similar dimensions to the inner surface 11 of the rigid basket 2, so that this filter bag 3 matches the rigid basket 2 when it is attached to the latter ( figures 2 and 3 ). In other words, the diameter of the tubular side wall 20 and bottom wall 22 of the bag filter 3 corresponds to the clearance, to the diameter of the inner surface 5a of the tubular housing 5 and the bottom 7 Similarly, the height of the side tubular wall 20 of the filter bag 3 corresponds approximately to the height of the tubular casing 5 of the rigid basket 2, or is a little less than this height.

Du côté de sa bordure supérieure 23, la paroi tubulaire latérale 20 de cette poche filtrante 3 est encore munie d'une ouverture latérale 25 dont la forme et les dimensions correspondent, au moins approximativement, à la forme et aux dimensions de l'ouverture latérale 13 de l'enveloppe tubulaire 5 du panier 2.On the side of its upper rim 23, the lateral tubular wall 20 of this filter bag 3 is further provided with a lateral opening 25 whose shape and dimensions correspond, at least approximately, to the shape and dimensions of the lateral opening 13 of the tubular envelope 5 of the basket 2.

La position de cette ouverture latérale 25 de la poche filtrante 3, par rapport aux bordures inférieure 21 et supérieure 23 de la paroi tubulaire latérale 20, correspond à la position de l'ouverture latérale 13 de l'enveloppe tubulaire 5 du panier rigide 2, par rapport à ses bordures inférieure 6 et supérieure 8.The position of this lateral opening 25 of the filter bag 3, with respect to the lower and upper edges 23 of the lateral tubular wall 20, corresponds to the position of the lateral opening 13 of the tubular casing 5 of the rigid basket 2, relative to its lower and upper edges 6 and 8.

Cette poche filtrante 3 est avantageusement obtenue par l'assemblage de deux pièces, l'une formant la paroi de fond 22 et l'autre formant la paroi tubulaire latérale 20 ; cette dernière est avantageusement obtenue par la flexion ou le cintrage d'une pièce rectangulaire dont les bordures d'extrémité latérales sont associées entre elles. Les différentes solidarisations (fond 22/paroi tubulaire 20 et bordures d'extrémité latérale de la paroi tubulaire 20) sont obtenues avantageusement par thermosoudage ou par couture.This filter bag 3 is advantageously obtained by assembling two pieces, one forming the bottom wall 22 and the other forming the lateral tubular wall 20; the latter is advantageously obtained by bending or bending a rectangular piece whose lateral end edges are associated with each other. The various fastenings (bottom 22 / tubular wall 20 and lateral end edges of the tubular wall 20) are advantageously obtained by heat sealing or sewing.

La pièce de fixation 4 est quant à elle représentée plus en détails sur les figures 3, 7 et 8.The fastener 4 is in turn represented in more detail on the figures 3 , 7 and 8 .

Cette pièce de fixation 4 est destinée à être rapportée à l'intérieur de la poche filtrante 3 logée dans le panier rigide 2, pour constituer des moyens de fixation aptes, d'une part, à solidariser ensemble le panier rigide 2 et la poche filtrante 3 et, d'autre part, à centrer l'ouverture latérale 13 du panier rigide 2 et l'ouverture latérale 25 de la poche filtrante 3 l'une par rapport à l'autre.This fastener 4 is intended to be attached inside the filter bag 3 housed in the rigid basket 2, to form fastening means capable, on the one hand, to secure together the rigid basket 2 and the filter bag 3 and, secondly, to center the lateral opening 13 of the rigid basket 2 and the lateral opening 25 of the filter bag 3 relative to each other.

La pièce de fixation 4 consiste en une pièce monobloc, réalisée par moulage par injection d'une matière plastique.The fastener 4 consists of a one-piece piece, made by injection molding of a plastic material.

Cette pièce de fixation 4, réalisée se compose - d'une partie de liaison 30, pour le positionnement et le centrage des ouvertures latérales 13, 25 précitées, et - d'une partie de maintien 31, en forme de collier, pour le verrouillage en position de la pièce de fixation 4.This fixing piece 4, made consists - of a connecting portion 30 for the positioning and centering of the lateral openings 13, 25 mentioned above, and - of a retaining portion 31, in the form of a collar, for locking in position of the fastener 4.

Tel qu'illustré par les figures 7 et 8, la partie de liaison 30 présente une section en L, et elle comprend :

  • un tronçon tubulaire 32, ici de section oblongue (ou ovale), destiné à être logé au travers des ouvertures latérales 13 et 25 associées et au travers du tronçon tubulaire 14 de l'ouverture latérale 13 du panier rigide 2, et
  • une collerette arrière 33 (en forme générale de couronne) destinée à venir prendre appui sur le pourtour 25a de l'ouverture latérale 25 de la poche filtrante 3 (côté face intérieure de cette poche 3).
As illustrated by Figures 7 and 8 the connecting portion 30 has an L-shaped section, and comprises:
  • a tubular section 32, here of oblong (or oval) section, intended to be housed through the lateral openings 13 and 25 associated and through the tubular section 14 of the lateral opening 13 of the rigid basket 2, and
  • a rear flange 33 (a general ring shape) intended to bear on the periphery 25 to the lateral opening 25 of the filter bag 3 (inner face side of the bag 3).

La collerette arrière 33 s'étend dans un plan perpendiculaire à l'axe du tronçon tubulaire 32.The rear flange 33 extends in a plane perpendicular to the axis of the tubular section 32.

Le tronçon tubulaire 32 est délimité - par deux surfaces annulaires, l'une intérieure 32a et l'autre extérieure 32b, et - par deux bordures latérales, l'une avant 32c et l'autre arrière 32d.The tubular portion 32 is defined - by two annular surfaces, one internal 32 a and external 32 b another, and - two lateral edges, one before 32 c and the other rear 32 d.

Les surfaces annulaires intérieure 32a et extérieure 32b s'étendent parallèlement l'une par rapport à l'autre.The inner annular surfaces 32 and external 32 b extend parallel relative to each other.

La surface intérieure 32a est destinée à délimiter un passage pour l'eau à pré-filtrer, tel que développé ci-après en relation avec les figures 2 à 4.The inner surface 32 is intended to delimit a passage for the water to pre-filter, as discussed further below in connection with Figures 2 to 4 .

La surface extérieure 32b du tronçon tubulaire 32 est adaptée de sorte que sa forme et ses dimensions correspondent, au jeu près, aux dimensions des ouvertures latérales 13 et 25 centrées, et de la surface intérieure 14a du tronçon tubulaire 14 du panier 2.The outer surface 32 b of the tubular section 32 is adapted so that its shape and dimensions correspond to the clearance, the dimensions of the lateral openings 13 and 25 centered, and the inner surface 14a of the tubular section 14 of the basket 2.

La collerette arrière 33 est délimitée par deux surfaces, l'une avant 33a (orientée du côté du tronçon tubulaire 32) et l'autre arrière 33b, ainsi que par deux bordures latérales, l'une intérieure 33c et l'autre extérieure 33d.The rear flange 33 is delimited by two surfaces, one front 33 a (the side facing the tubular portion 32) and the other rear 33b, and by two lateral edges, one inner and the other 33 c outside 33 d .

La bordure arrière 32d du tronçon tubulaire 32 est raccordée à la bordure intérieure 33c de la collerette arrière 33.The rear edge 32 d of the tubular section 32 is connected to the inner edge 33c of the rear flange 33.

La partie de maintien 31 se présente sous la forme d'un collier semi-rigide qui se compose de deux bras rectilignes flexibles 35 et 36 semi-rigides, aptes à être déformés par cintrage de sorte à leur appliquer une courbure réversible.The holding portion 31 is in the form of a semi-rigid collar which consists of two flexible rectilinear arms 35 and 36 semi-rigid, able to be deformed by bending so as to apply a reversible curvature.

Ces deux bras rectilignes 35 et 36 sont délimités par deux extrémités:

  • une première extrémité 35a, 36a est raccordée avec la partie de liaison 30, et en particulier de part et d'autre de la collerette arrière 33, et
  • une seconde extrémité 35b, 36b comporte des moyens de liaison pour leur solidarisation.
These two straight arms 35 and 36 are delimited by two ends:
  • has a first end 35, 36a is connected with the connecting portion 30, and in particular on either side of the rear flange 33, and
  • a second end 35 b, 36 b comprises connection means for connection thereof.

Cette première extrémité 35a et 36a des bras 35 et 36 est raccordée au niveau des zones latérales par lesquelles passe le grand axe 30' de la partie de liaison 30 (ou le grand axe 32' de son tronçon tubulaire 32) ; et les bras 35 et 36 s'étendent de manière alignée, dans le prolongement de ce grand axe.This first end 35 a and 36a of the arms 35 and 36 is connected at the side areas through which passes the major axis 30 'of the connecting portion 30 (or the major axis 32' of the tubular section 32); and the arms 35 and 36 extend in an aligned manner, in the extension of this major axis.

Les moyens de liaison entre les secondes extrémités 35b, 36b des bras 35, 36 comprennent une bague 35c, réalisée monobloc avec la seconde extrémité 35b du premier bras 35.The connecting means between the second ends 35 b, 36 b of the arms 35, 36 comprise a ring 35 c integrally formed with the second end 35 b of the first arm 35.

Cette bague 35c définit une ouverture traversante 35d, dont l'axe s'étend parallèlement au premier bras 35 et dont la section correspond, au jeu près, à la section du second bras 36.This ring 35c defines a through opening 35 d , whose axis extends parallel to the first arm 35 and whose section corresponds, with play, to the section of the second arm 36.

Tel que représenté sur la figure 8, les deux bras 35 et 36 sont destinés à être cintrés en arc de cercle du côté de la surface arrière 33b de la collerette arrière 33 de la partie de liaison 30.As shown on the figure 8 , the two arms 35 and 36 are intended to be bent in an arc of the side of the rear surface 33b of the rear flange 33 of the connecting portion 30.

Dans cette configuration, la seconde extrémité 36b du second bras 36 est introduite au travers de l'ouverture 35d de la bague 35c équipant le premier bras 35, de sorte à définir ensemble le collier semi-rigide circulaire 31.In this configuration, the second end 36 b of the second arm 36 is inserted through the opening 35 of the ring 35 c provided on the first arm 35 so as to define together the rigid circular collar 31.

En fonction de la section de l'ouverture 35d de la bague 35c, le second bras 36 peut, avantageusement, coulisser librement au travers de cette bague 35c ou présenter une force de frottement (faible ou forte).Depending on the section of the opening 35 of the ring 35 c, the second arm 36 can advantageously slide freely through this ring 35 c or present a frictional force (low or high).

Pour l'assemblage du dispositif de filtration 1, la poche filtrante 3 est tout d'abord convenablement rapportée au sein de son panier rigide 2 dédié. Le cas échéant, le positionnement est simplifié par la souplesse de cette poche filtrante 3.For the assembly of the filtration device 1, the filter bag 3 is first suitably reported within its rigid basket 2 dedicated. Where appropriate, the positioning is simplified by the flexibility of this filter bag 3.

Pour cela, la poche filtrante 3 est positionnée avec son ouverture supérieure 24 s'étendant dans le plan, ou au moins approximativement dans le plan, de l'ouverture supérieure 10 du panier rigide 2. La surface extérieure 3b de la poche filtrante 3 recouvre alors surface intérieure 11 du panier 2, avec d'une part leurs parois tubulaires 20, 5 en regard et d'autre part leurs parois de fond 22, 7 superposées.For this, the filter bag 3 is positioned with its upper opening 24 extending in the plane, or at least approximately in the plane, of the upper opening 10 of the rigid basket 2. The outer surface 3b of the filter bag 3 then covers inner surface 11 of the basket 2, with firstly their tubular walls 20, 5 opposite and secondly their bottom walls 22, 7 superimposed.

Cette poche filtrante 3 est en plus orientée de sorte que son ouverture latérale 25 s'étende en regard de l'ouverture latérale 13 du panier rigide 2.This filter bag 3 is further oriented so that its lateral opening 25 extends opposite the lateral opening 13 of the rigid basket 2.

L'opérateur peut alors ensuite rapporter la pièce de fixation 4 tel que représenté sur les figures 2 à 4.The operator can then report the attachment piece 4 as shown on the Figures 2 to 4 .

Pour cela et préalablement, les deux bras semi-rigides 35 et 36 de la pièce de fixation 4 sont convenablement solidarisés ensemble de manière à former le collier semi-rigide circulaire 31 tel que décrit ci-dessus en relation avec la figure 8. Cette liaison est ajustée de sorte que le diamètre défini par le collier semi-rigide 31 obtenu soit un peu inférieur au diamètre de la surface intérieure 11 du panier rigide 2 dans lequel il est rapporté (ou plus précisément un peu inférieur au diamètre de la surface intérieure 20a de la paroi tubulaire latérale 20 de la poche filtrante 3 dans un plan horizontal passant par son ouverture latérale 25).For this purpose and beforehand, the two semi-rigid arms 35 and 36 of the fastening piece 4 are properly secured together so as to form the circular semi-rigid collar 31 as described above in relation to the figure 8 . This connection is adjusted so that the diameter defined by the semi-rigid collar 31 obtained is a little smaller than the diameter of the inner surface 11 of the rigid basket 2 in which it is attached (or more precisely a little smaller than the diameter of the surface 20 a of the lateral tubular wall 20 of the filter bag 3 in a horizontal plane passing through its lateral opening 25).

Tel que représenté sur les figures 3 et 4, l'opérateur positionne ensuite la partie de liaison 30 de la pièce de fixation 4 par l'intérieur de la poche filtrante 3, de sorte à venir coopérer avec les ouvertures latérales 13 et 25 associées et le tronçon tubulaire 14 du panier 2.As shown on the Figures 3 and 4 , the operator then positions the connecting portion 30 of the fastener 4 by the inside of the filter bag 3, so as to cooperate with the lateral openings 13 and 25 associated and the tubular section 14 of the basket 2.

A cet effet, la pièce de fixation 4 est introduite dans la poche filtrante 3, puis le tronçon tubulaire 32 de sa partie de liaison 30 est logé au travers des ouvertures latérales 13 et 25 centrées et aussi du tronçon tubulaire 14 du panier 2 par une introduction en translation de l'intérieur vers l'extérieur.For this purpose, the fastener 4 is introduced into the filter bag 3, then the tubular section 32 of its connecting portion 30 is housed through the lateral openings 13 and 25 centered and also the tubular section 14 of the basket 2 by a translation introduction from inside to outside.

La surface avant 33a de la collerette arrière 33 de cette partie de liaison 30 vient prendre appui sur le pourtour 25a de l'ouverture latérale 25 de la poche filtrante 3 (figures 3 et 4).The front surface 33a of the rear flange 33 of the connecting portion 30 comes to bear on the periphery 25 to the lateral opening 25 of the filter bag 3 ( Figures 3 and 4 ).

Ce pourtour 25a de l'ouverture latérale 25 de la poche filtrante 3 est ainsi pris en sandwich entre - la collerette arrière 33 et - le pourtour 13a de l'ouverture latérale 13 du panier rigide 2 (ou plus précisément la partie de la surface intérieure 5a de l'enveloppe tubulaire 5 du panier rigide 2 qui entoure l'ouverture latérale 13 et qui se situe en regard de la collerette arrière 33).This periphery 25 to the lateral opening 25 of the filter bag 3 is thus sandwiched between - the rear flange 33 and - the edge 13a of the side opening 13 of the rigid basket 2 (or more precisely the part of the inner surface 5a of the tubular casing 5 of the rigid basket 2 surrounding the lateral opening 13 and which lies opposite the rear flange 33).

De même, la surface extérieure 32b du tronçon tubulaire 32 épouse, au jeu près, la surface intérieure 14a du tronçon tubulaire 14 du panier rigide 2.Similarly, the outer surface 32 b of the tubular section 32 wife, the clearance, the inner surface 14a of the tubular portion 14 of the rigid basket 2.

Le collier de maintien 31 est quant à lui positionné au sein de la poche filtrante 3 de sorte à épouser cette dernière selon une bande intérieure annulaire s'étendant dans un plan L qui est perpendiculaire à l'axe longitudinal 1' du dispositif de filtration 1 et qui passe par l'ouverture latérale 13 du panier rigide 2 (figure 3).The holding collar 31 is positioned within the filter bag 3 so as to fit the latter according to an annular inner band extending in a plane L which is perpendicular to the longitudinal axis 1 'of the filtration device 1 and which passes through the lateral opening 13 of the rigid basket 2 ( figure 3 ).

Ce collier 31 tend à augmenter en diamètre du fait de l'élasticité des bras 35, 36 (ou est ajusté en diamètre manuellement, en fonction des frottements au niveau de sa bague 35c) jusqu'à ce que son diamètre corresponde au diamètre de la surface intérieure 20a de la paroi tubulaire latérale 20 de la poche filtrante 3 en appui contre l'enveloppe tubulaire 5 du panier rigide 2, et tend donc à maintenir la partie de liaison 30 associée en position.This collar 31 tends to increase in diameter because of the elasticity of the arms 35, 36 (or is adjusted in diameter manually, as a function of the friction at its ring 35 c ) until its diameter corresponds to the diameter of the inner surface 20a of the tubular side wall 20 of the filter bag 3 rests against the tubular casing 5 of the rigid basket 2, and thus tends to maintain the connecting portion 30 associated in position.

A cet effet, le collier de maintien 31, et la partie de liaison 30 associée, définissent ensemble un périmètre (en l'occurrence une circonférence) égal, ou sensiblement égal, au périmètre (en l'occurrence également une circonférence) de la surface intérieure 5a de l'enveloppe tubulaire 5 du panier rigide 2 et plus précisément au périmètre de la surface intérieure 20a de la paroi tubulaire latérale 20 de la poche filtrante 3.For this purpose, the holding collar 31, and the associated connecting portion 30, together define a perimeter (in this case a circumference) equal to, or substantially equal to, the perimeter (in this case also a circumference) of the surface inside 5 a of the tubular envelope 5 of the rigid basket 2 and more precisely at the perimeter of the inner surface 20 a of the lateral tubular wall 20 of the filter bag 3.

On obtient ainsi une certaine étanchéité autour de la partie de liaison 30 du fait des surfaces en contact, en l'occurrence :

  • le pourtour 25a de l'ouverture latérale 25 de la poche filtrante 3 pris en sandwich entre la collerette arrière 33 et le pourtour 13a de l'ouverture latérale 13 du panier 2, et
  • la surface extérieure 32b du tronçon tubulaire 32 de la partie de liaison 30 de la pièce de fixation 4 contre la surface intérieure 14a du tronçon tubulaire 14 du panier rigide 2.
This gives a certain tightness around the connecting portion 30 because of the surfaces in contact, in this case:
  • the periphery 25 to the lateral opening 25 of the filter bag 3 sandwiched between the rear collar 33 and the periphery 13 a of the side opening 13 of the cart 2, and
  • the outer surface 32 b of the tubular section 32 of the connecting portion 30 of the fixing part 4 against the inner surface 14a of the tubular portion 14 of the rigid basket 2.

De manière alternative, la poche filtrante 3 et la pièce de liaison 4 sont solidarisées ensemble : la collerette arrière 33 est solidarisée avec le pourtour 25a de l'ouverture latérale 25 de la poche filtrante 3 (par exemple par thermosoudage), son tronçon tubulaire 32 traverse l'ouverture latérale 25 de cette poche 3, et ses bras 35 et 36 s'étendent en regard de la paroi tubulaire 20.Alternatively, the filter bag 3 and the connecting piece 4 are joined together, the rear flange 33 is secured to the periphery 25 a of the side opening 25 of the filter bag 3 (for example by heat), its tubular section 32 passes through the lateral opening 25 of this pocket 3, and its arms 35 and 36 extend facing the tubular wall 20.

L'assemblage de cette poche filtrante 3 est ainsi mis en oeuvre par le positionnement simultané du tronçon tubulaire 32 de la pièce de liaison 4 au travers du tronçon tubulaire 14 du panier 2, puis le réglage du collier 31 dans la poche 3.The assembly of this filter bag 3 is thus implemented by the simultaneous positioning of the tubular section 32 of the connecting piece 4 through the tubular section 14 of the basket 2, then the adjustment of the collar 31 in the pocket 3.

Le dispositif de filtration 1 assemblé peut alors être rapporté sur la conduite d'alimentation C de la pompe de piscine P avec le tronçon tubulaire 14 du panier rigide 2 connecté au tronçon amont C2.The assembled filtration device 1 can then be attached to the supply pipe C of the swimming pool pump P with the tubular section 14 of the rigid basket 2 connected to the upstream section C2 .

Lorsque la pompe P est mise en fonctionnement, l'eau pénètre dans le dispositif de filtration 1 en circulant au travers du passage défini par la surface intérieure 32a du tronçon tubulaire 32 de la pièce de liaison 4.When the pump P is operated, water enters the filtration device 1 flowing through the passage defined by the inner surface 32 of the tubular section 32 of the connecting piece 4.

L'eau à filtrer chemine ensuite au travers de la poche filtrante 3 qui retient les impuretés (fonction de la taille des mailles), puis au travers du panier rigide 2.The water to be filtered then travels through the filter bag 3 which retains the impurities (depending on the size of the mesh), then through the rigid basket 2.

L'eau filtrée peut alors s'écouler au sein du tronçon aval C3 de la conduite d'alimentation C jusqu'à la pompe P.The filtered water can then flow in the downstream section C3 of the supply line C to the pump P.

Si la poche filtrante 3 doit être changée (par exemple si elle est colmatée, détériorée ou à nettoyer, il suffit à l'opérateur d'exercer une traction sur le collier de maintien 31 de la pièce de fixation 4 de sorte à extraire sa partie de liaison 30 par rapport aux orifices 13 et 25 associés.If the filter bag 3 has to be changed (for example if it is clogged, deteriorated or to be cleaned, it suffices for the operator to exert a pull on the retaining collar 31 of the fastener 4 so as to extract its part connecting 30 relative to the orifices 13 and 25 associated.

La poche filtrante 3 peut alors être extraite au travers de l'orifice supérieur 10 du panier 2 en vue de son remplacement ou de son nettoyage.The filter bag 3 can then be extracted through the upper orifice 10 of the basket 2 for replacement or cleaning.

Le dispositif de filtration 1 selon l'invention a ainsi l'intérêt de permettre une filtration particulièrement efficace, tout en étant de structure particulièrement simple et peu onéreuse, ses différentes pièces constitutives étant aptes à être obtenues par des technologies et des matériaux très économiques. Il est de plus particulièrement simple sur le plan de l'entretien et de la maintenance, ce qui permet de conserver des qualités de filtration optimales dans le temps, ainsi qu'une protection de l'ensemble hydraulique de la pompe.The filtration device 1 according to the invention thus has the advantage of allowing a particularly efficient filtration, while being of particularly simple and inexpensive structure, its various component parts being able to be obtained by technologies and very economical materials. In addition, it is particularly simple in terms of maintenance and maintenance, which makes it possible to maintain optimum filtration qualities over time, as well as protection of the hydraulic assembly of the pump.

On notera également que les paniers rigides actuels peuvent être équipés d'une poche filtrante 3 associée à des moyens de fixation 4, pour obtenir un dispositif de filtration conforme à l'invention.It will also be noted that the current rigid baskets may be equipped with a filter bag 3 associated with fastening means 4, to obtain a filtration device according to the invention.

La poche filtrante 3 et éventuellement les moyens de fixation 4 peuvent alors constituer des accessoires pouvant être vendus indépendamment d'un panier rigide, pour équiper un panier dépourvu de poche filtrante ou pour remplacer une poche filtrante usagée.The filter bag 3 and possibly the fastening means 4 can then be accessories that can be sold independently of a rigid basket, to equip a basket without a filter bag or to replace a used filter bag.

Le panier rigide 2, la poche filtrante 3 et la pièce de fixation 4 peuvent encore être commercialisés sous la forme d'un « kit » ou d'un prêt-à-monter.The rigid basket 2, the filter bag 3 and the fastener 4 can still be marketed in the form of a "kit" or a ready-to-assemble.

Claims (10)

Dispositif de filtration destiné à équiper un conduit d'alimentation (C) d'une pompe de piscine (P), lequel dispositif de filtration (1) comprend un panier rigide (2) qui comporte une enveloppe tubulaire (5) consistant en une grille présentant des mailles (51), laquelle enveloppe (5) est munie d'une surface intérieure (5a) et d'une surface extérieure (5b), et comporte une ouverture latérale (13) pour l'entrée de l'eau à filtrer dans ledit panier (2), lequel dispositif de filtration (1) est caractérisé en ce qu'il comporte une poche filtrante (3) qui comporte une paroi latérale tubulaire (20), rapportée dans ledit panier (2) en regard de la surface intérieure (5a) de son enveloppe tubulaire (5), laquelle poche filtrante (3), perméable aux liquides, comporte des mailles (19) dont les dimensions sont inférieures par rapport aux dimensions des mailles (51) de ladite enveloppe tubulaire de panier (5), laquelle poche filtrante (3) est munie d'une ouverture latérale (25) dont les dimensions correspondent, au moins approximativement, aux dimensions de ladite ouverture latérale (13) de l'enveloppe tubulaire de panier (5), et en ce que ledit dispositif de filtration (1) comporte des moyens de fixation (4), d'une part, pour solidariser ensemble ledit panier (2) et ladite poche filtrante (3) et, d'autre part, centrer lesdites ouvertures latérales (13, 25) l'une par rapport à l'autre afin d'assurer l'entrée d'eau dans ladite poche filtrante (3) par passage au travers desdites ouvertures latérales centrées (13, 25).Filtration device for equipping a supply pipe ( C ) with a pool pump ( P ), which filtration device (1) comprises a rigid basket (2) which comprises a tubular envelope (5) consisting of a grid having meshes (51), which casing (5) is provided with an inner surface (5a) and an outer surface (5b), and comprises a lateral opening (13) for the entrance of water to filter in said basket (2), which filtering device (1) is characterized in that it comprises a filter bag (3) which has a tubular side wall (20), attached in said basket (2) opposite the inner surface (5a) of the tubular casing (5), which filter bag (3), liquid-permeable, has loops (19) whose dimensions are lower than a mesh size (51) of said tubular casing basket (5), which filter bag (3) is provided with a lateral opening (25) whose dimensions correspond, at least approximately, to the dimensions of said lateral opening (13) of the tubular basket casing (5), and in that said filtering device (1) comprises fixing means (4) ), on the one hand, to fasten together said basket (2) and said filter bag (3) and, on the other hand, to center said lateral openings (13, 25) relative to each other so as to ensuring the entry of water into said filter bag (3) by passing through said centered lateral openings (13, 25). Dispositif de filtration selon la revendication 1, caractérisé en ce que les moyens de solidarisation (4) coopèrent avec le pourtour (25a) de l'ouverture latérale (25) de la poche filtrante (3) et le pourtour (13a) de l'ouverture latérale (13) de l'enveloppe tubulaire de panier (5), de sorte à au moins limiter le passage d'eau entre lesdits pourtours (13a, 25a) associés.Filtration device according to claim 1, characterized in that the securing means (4) cooperate with the periphery (25 a ) of the lateral opening (25) of the filter bag (3) and the periphery (13 a ) of the lateral opening (13) of the tubular basket casing (5), so as to at least limit the passage of water between said perimeters (13 a , 25 a ) associated. Dispositif de filtration selon la revendication 2, caractérisé en ce que les moyens de solidarisation (4) consistent en une pièce de fixation (4), rapportée à l'intérieur de la poche filtrante (3), qui comporte une partie de liaison (30) à section en L comprenant : - un tronçon tubulaire (32), destiné à être logé au travers de l'ouverture latérale (25) de la poche filtrante (3) et de l'ouverture latérale (13) de l'enveloppe tubulaire de panier (5), dont la surface extérieure (32b) épouse, au jeu près, lesdites ouvertures latérales (13, 25) centrées, et - une collerette arrière (33), raccordée avec une bordure arrière (32d) dudit tronçon tubulaire (32), destinée à venir prendre appui sur le pourtour (25a) de l'ouverture latérale (25) de la poche filtrante (3). Filtration device according to claim 2, characterized in that the securing means (4) consist of a fastener (4), attached to the interior of the filter bag (3), which has a connecting part (30). ) with an L-shaped section comprising: a tubular section (32) intended to be housed through the lateral opening (25) of the filter bag (3) and the lateral opening (13) of the tubular basket envelope (5), of which the outer surface (32 b) wife, clearance, said side openings (13, 25) centered, and - a rear flange (33), connected with a rear edge (32 d ) of said tubular section (32) intended to bear on the periphery (25 a ) of the lateral opening (25) of the filter bag (3); ). Dispositif de filtration selon la revendication 3, caractérisé en ce que l'ouverture latérale (13) de l'enveloppe tubulaire de panier (5) est définie par un tronçon tubulaire (14), et en ce que la surface extérieure (32b) du tronçon tubulaire (32) de la pièce de fixation (4) épouse, au jeu près, la surface intérieure (14a) du tronçon tubulaire (14) de l'enveloppe tubulaire de panier (5).Filtration device according to claim 3, characterized in that the lateral opening (13) of the tubular basket casing (5) is defined by a tubular section (14), and in that the outer surface (32 b) of the tubular section (32) of the fastening part (4) wife, the clearance, the inner surface (14a) of the tubular section (14) of the tubular basket casing (5). Dispositif de filtration selon l'une quelconque des revendications 3 ou 4, caractérisé en ce que la pièce de fixation (4) comporte un collier de maintien semi-rigide (31) qui est positionné dans la poche filtrante (3) de sorte à épouser cette dernière selon une bande intérieure annulaire, lequel collier de maintien (31) et laquelle partie de liaison (30) définissent ensemble un périmètre égal, ou pratiquement égal, au périmètre de la surface intérieure (5a) de l'enveloppe tubulaire (5) du panier (2) et de la surface intérieure (20a) de la paroi tubulaire (20) de la poche filtrante (3).Filtration device according to one of Claims 3 or 4, characterized in that the fastening part (4) comprises a semi-rigid holding collar (31) which is positioned in the filter bag (3) so as to form a wedge the latter in an annular inner band, wherein retaining clamp (31) and which connecting part (30) together define a perimeter equal, or substantially equal, the perimeter of the inner surface (5a) of the tubular casing (5 ) of the basket (2) and the inner surface (20 a ) of the tubular wall (20) of the filter bag (3). Dispositif de filtration selon la revendication 5, caractérisé en ce que le collier de maintien (31) se compose de deux bras semi-rigides (35, 36) dont une première de leurs extrémités (35a, 36a) est solidarisée avec la partie de liaison (30), de part et d'autre de cette dernière, et dont leurs secondes extrémités (35b, 36b) sont solidarisées ensemble par des moyens de liaison (35c).Filter device according to claim 5, characterized in that the supporting collar (31) consists of two semi-rigid arms (35, 36), a first of their ends (35 a, 36 a) is secured to the part link (30), on either side of the latter, and whose second ends (35 b , 36 b ) are secured together by connecting means (35 c ). Dispositif de filtration selon la revendication 6, caractérisé en ce que les moyens de liaison (35c) entre les bras (35, 36) comprennent une bague (35c), réalisée monobloc avec la seconde extrémité (35b) d'un premier bras (35), laquelle bague (35c) définit une ouverture (35d) dont la section correspond, au jeu près, à la section du second bras (36) destiné à être introduit au travers de ladite bague (35c).Filtration device according to claim 6, characterized in that the connecting means ( 35c ) between the arms (35, 36) comprise a ring ( 35c ), produced in one piece with the second end ( 35b ) of a first arm (35), which ring (35 c ) defines an opening (35 d ) whose section corresponds, with clearance, to the section of the second arm (36) intended to be introduced through said ring (35 c ). Dispositif de filtration selon l'une quelconque des revendications 1 à 7, caractérisé en ce que l'enveloppe tubulaire (5) du panier (2) présente une forme générale cylindrique, délimitée par une bordure inférieure (6) raccordée à une paroi de fond (7) et par une bordure supérieure (8) délimitant une ouverture supérieure (10), et en ce que la poche filtrante (3) présente également une forme générale cylindrique, correspondant au jeu près à la surface intérieure (11) dudit panier (2), avec la paroi tubulaire latérale (20) délimitée par une bordure inférieure (21) raccordée à une paroi de fond (22) et par une bordure supérieure (23) délimitant une ouverture supérieure (24).Filtration device according to any one of claims 1 to 7, characterized in that the tubular casing (5) of the basket (2) has a generally cylindrical shape delimited by a bottom edge (6) connected to a bottom wall (7) and by an upper border (8) delimiting an upper opening (10), and in that the filter bag (3) also has a generally cylindrical shape, corresponding to the clearance close to the inner surface (11) of said basket ( 2), with the lateral tubular wall (20) defined by a bottom edge (21) connected to a bottom wall (22) and an upper edge (23) delimiting an upper opening (24). Dispositif de filtration selon l'une quelconque des revendications 1 à 8, caractérisé en ce que les mailles (19) de la poche filtrante (3) ont une taille comprise entre 1 et 2 mm de côté, et en ce que les mailles (51) de l'enveloppe tubulaire (5) du panier (2) ont une taille comprise entre 3 et 4 mm de côté.Filtration device according to one of Claims 1 to 8, characterized in that the mesh (19) of the filter bag (3) has a size of between 1 and 2 mm, and that the mesh (51) ) of the tubular casing (5) of the basket (2) have a size of between 3 and 4 mm. Poche filtrante (3) d'un dispositif de filtration (1) selon l'une quelconque des revendications 1 à 9.Filter bag (3) of a filter device (1) according to one of Claims 1 to 9.
EP12306287.9A 2011-10-17 2012-10-17 Filtering device for supply pipe of a swimming-pool pump Active EP2584202B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1159373A FR2981413B1 (en) 2011-10-17 2011-10-17 FILTRATION DEVICE FOR POWER SUPPLY DUCT OF A SWIMMING POOL PUMP

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EP2584202A2 true EP2584202A2 (en) 2013-04-24
EP2584202A3 EP2584202A3 (en) 2018-01-03
EP2584202B1 EP2584202B1 (en) 2019-03-06

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EP (1) EP2584202B1 (en)
ES (1) ES2719629T3 (en)
FR (1) FR2981413B1 (en)
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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4773823A (en) 1984-11-13 1988-09-27 Tolo, Inc. Centrifugal pump having improvements in seal life

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4701259A (en) * 1986-03-27 1987-10-20 Rosedale Products, Inc. Fluid filter with filter retainer
US6878266B2 (en) * 2001-11-21 2005-04-12 A. H. Equipment Corporation Spa and pool filter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4773823A (en) 1984-11-13 1988-09-27 Tolo, Inc. Centrifugal pump having improvements in seal life

Also Published As

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EP2584202A3 (en) 2018-01-03
FR2981413B1 (en) 2013-11-15
EP2584202B1 (en) 2019-03-06
FR2981413A1 (en) 2013-04-19
PT2584202T (en) 2019-04-12
ES2719629T3 (en) 2019-07-11

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