EP0323883B1 - Appareil pour le nettoyage de piscines - Google Patents

Appareil pour le nettoyage de piscines Download PDF

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Publication number
EP0323883B1
EP0323883B1 EP89300008A EP89300008A EP0323883B1 EP 0323883 B1 EP0323883 B1 EP 0323883B1 EP 89300008 A EP89300008 A EP 89300008A EP 89300008 A EP89300008 A EP 89300008A EP 0323883 B1 EP0323883 B1 EP 0323883B1
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EP
European Patent Office
Prior art keywords
head
cleaned
liquid
rudder
turbine
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.)
Expired - Lifetime
Application number
EP89300008A
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German (de)
English (en)
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EP0323883A1 (fr
Inventor
Carl Frederick Wilhelm Supra
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liberty Pool Products SA
Original Assignee
Liberty Pool Products SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Liberty Pool Products SA filed Critical Liberty Pool Products SA
Publication of EP0323883A1 publication Critical patent/EP0323883A1/fr
Application granted granted Critical
Publication of EP0323883B1 publication Critical patent/EP0323883B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • E04H4/14—Parts, details or accessories not otherwise provided for
    • E04H4/16—Parts, details or accessories not otherwise provided for specially adapted for cleaning
    • E04H4/1654—Self-propelled cleaners

Definitions

  • This invention relates to a device for cleaning a surface submerged in a liquid and to a method of cleaning such a surface.
  • the specification of the European Patent Application No. 239498 discloses a submersible suction cleaner and apparatus for periodically displacing the cleaner.
  • the apparatus has an actuating means which is driven by a water wheel.
  • a valve is used to control the flow of water to the wheel so that the wheel periodically exerts a displacement force on the suction cleaner.
  • the present invention s concerned with the manner in which a cleaning device is displaced over a surface which is to be cleaned, and with the steering of the device.
  • the invention provides a device for cleaning a surface which is submerged in a liquid, the device including: a head having at least one inlet which opposes the surface to be cleaned, means for connecting the head to a suction source to cause liquid to flow through the inlet, and turbine means which is driven by the flowing liquid characterized by propeller means which is driven by the turbine means and which propels the head over the surface to be cleaned.
  • the device may include steering means for altering the direction which the head is propelled over the surface to be cleaned.
  • the steering means includes at least one rudder and control means for changing the orientation of the rudder relatively to the head.
  • the control means is preferably actuated by the turbine means.
  • any suitable alternative way of altering the direction in which the head is propelled over the surface may be used.
  • the orientation of the propeller means relatively to the head may be changed so that the thrust which is exerted by the propeller means is applied in a different direction.
  • control means may include speed reduction drive means with an input drive member which is driven by the turbine means and output drive member which is connected to the rudder for changing the orientation of the rudder relatively to the head.
  • the orientation of the rudder relatively to the head may be changed continuously in that the rudder may be moved all the time.
  • means may be included for varying the nature of the control which is exerted over the movement of the rudder.
  • the rudder is caused to oscillate by means of a link which is connected to the said output drive member and, through suitably connecting the link to the output drive member, a degree of lost play or lost motion may be incorporated to effect a variation in the manner in which the orientation of the rudder relatively to the head is changed.
  • the device may include flow deflecting means for urging at least a section of the head towards the surface to be cleaned.
  • the flow deflecting means may for example take the form of a hydroplane or similar shaped flow-deflecting formation.
  • One or more hydroplanes may for example be incorporated on the rudder.
  • the rudder is positioned immmediately to the rear of the propellor and a respective hydroplane is positioned on each opposing side of the rudder.
  • the means for connecting the head to a suction source may include a spigot which is rotatable about a longitudinal axis relatively to the head. This spigot is adapted to be connected to a flexible suction hose.
  • the head may be supported in any appropriate way on the submerged surface. It is possible, for example, to have the head, or an under surface of the head, directly in contact with the surface to be cleaned. It is also possible to have the head surrounded at least partially, but preferably totally, by a peripheral flexible skirt which provides a scraping or sweeping action as the head moves over the submerged surface. In a preferred form of the invention however use is made of rotatable support means fixed to the head which engage with the surface to be cleaned.
  • the head may include a peripheral region surrounding the inlet and the rotatable support means may space the peripheral region from the surface to be cleaned.
  • the rotatable support means preferably are of the kind which permit rotation in any direction with a minimal amount of lost motion.
  • the number of rotatable support means may vary according to requirement but in a preferred form of the invention three of the support means are used.
  • Two support means may be located more or less in line with another, when the head is viewed from the side, and a third support means may be located at a forward end of the head. At least portion of the third support means may project beyond an adjacent outer surface of the head.
  • Guide means may be provided on sides of the head.
  • the guide means may for example comprise one or more rollers which are adapted to engage, in a rolling manner, with portions of the submerged surface which extend transversely, e.g. at right angles, to that portion of the submerged surface with which the head is engaged.
  • the head may include at least one chamber which contains a quantity of the liquid and which is sealable.
  • the size of the chamber and the amount of liquid included in the chamber may be varied to adjust the buoyancy of the device in the liquid. Other techniques may be alternatively or additionally adopted to adjust the buoyancy of the device.
  • one or more of the rotatable sealing means include weights of lead or similar material to impart to the device a desired specific gravity.
  • the invention also extends to a swimming pool cleaner which has a head mounted on wheels, a suction passage through the head, a turbine which is mounted in the suction passage, and a propellor which is driven by the turbine and which propels the head.
  • the cleaner may include a rudder and a mechanism, actuated by the turbine, for altering the orientation of the rudder relatively to the head.
  • the head viewed in plan, may be substantially symmetrical.
  • the propellor means may be aligned centrally relatively to the head or alternatively may be aligned tangentially so as to impart thrust to the head which causes the head to pivot or rotate relatively to the suction connection means.
  • the head may be made from any suitable material and preferably is made from a plastics material.
  • the invention also extends to a method of cleaning a surface submerged in a liquid which includes the steps of locating a cleaning head opposing the surface to be cleaned, applying suction to the head and so causing the head to adhere to the surface and liquid to flow through the head, using the flowing liquid to drive propellor means, and using the propellor means to propel the head over the surface to be cleaned.
  • the flowing liquid is preferably directed through filtration means.
  • the method may include the step of adjusting the buoyancy of the head by introducing a volume of the liquid into a sealable chamber of the head.
  • Suction may be applied to the head through a flexible hose which is fixed to the head by means of a connector which is rotatable about a longitudinal axis relatively to the head.
  • the flowing liquid may be used to actuate steering means and the steering means may be used to alter the direction in which the propellor means propels the head over the surface to be cleaned.
  • the steering means may include at least one rudder.
  • Use may be made of at least one hydroplane or similar flow-deflecting device to apply thrust to the head in the direction of the surface on which the head is located.
  • the head may be supported by means of rotatable support means which maintain an outer wall of the head, which opposes the surface to be cleaned, spaced from the surface.
  • FIGS. 1 and 2 of the accompanying drawings illustrate in plan and from the side respectively a pool cleaner according to the invention.
  • the cleaner includes a housing 10 which is made from a suitable plastics material and which forms a head 12 which opposes a surface 14 of a swimming pool which is to be cleaned.
  • the head includes a recess 16 which leads to an inlet 18 on the underside of a turbine housing 20.
  • a spigot 22 which is shown in more detail, in cross section, in Figure 3 and which is described more particularly hereinafter.
  • the turbine housing 20 contains a turbine or paddle wheel 24 which is mounted on an axle 26. One end of the axle extends through the housing and rotates a drive gear 28.
  • a shaft 30 which is supported on a pillar 32 extends through an upper cover 34 of the housing. At its outer end the shaft has fixed to it a propellor 36. At its forward end the shaft is connected to a gear 38 which is meshed with the drive gear 28.
  • a bevel gear 40 is fixed to the axle 26.
  • the bevel gear meshes with a second bevel gear 42 which is the initial gear in a reduction gearbox 44.
  • the gearbox contains two vertical spaced axles 46 and 48 respectively and the bevel gear 42 is uppermost on the axle 46.
  • a plurality of gears 49 are mounted on each of the axles respectively. The gears mesh with one another in a known way and effect a reduction in the rotational drive transferred through the gearbox between successive meshing gears.
  • the axle 48 is fixed to a lower most gear 50 in the gearbox. This gear is a driven gear and the axle 48 rotates with it.
  • the axle 48 extends upwardly outside of the gearbox casing and a drive wheel 52 is fixed to it.
  • An eccentrically located pin 53 extends upwardly on an upper surface of the drive wheel 52. This feature is more clearly visible in Figure 1.
  • a rudder 54 is mounted for pivotal movement about in-line upper and lower pivotal points 56 and 58 respectively in opposing upper and lower portions of the housing.
  • the rudder has an integral projecting link 60 with an elongate slot 62.
  • a drive link 64 is mounted for oscillatory movement on an upstanding pin 66.
  • the drive link 64 has an upstanding pin 68 which is located loosely within the slot 62.
  • the drive link is itself formed with an elongate slot 70 and the pin 53 on the drive wheel 52 is engaged with the slot.
  • the rudder 54 has, on opposed sides, two hydroplanes 72 and 74 respectively. These shaped deflectors are inclined upwardly towards the rear side of the pool cleaner.
  • the housing 10 is supported on three wheels 76, 78 and 80 respectively.
  • the wheels 76 and 78 are more or less in line on opposing sides of the housing on a rear side of the turbine while the wheel 80 is at a forward or leading of the housing.
  • the wheels 76 and 78 are each supported between opposing surfaces of the housing and of an overlying support 82 respectively.
  • the wheel 80 is located between two spaced supports at a forward end of the housing.
  • the construction of the wheel 80 is described hereinafter.
  • the wheels 76 and 78 are however similarly constructed.
  • the wheel 80 consists of two hemispheres 84 and 86 respectively each of which is mounted for independent rotation about stub axles 88 and 90 respectively, shown in dotted outline.
  • the stub axles extend at right angles, in opposed directions, from a central axle 92 about which both hemispheres are rotatable in unison.
  • the construction of the wheel is such that omni-directional movement of the wheel is possible with very little lost motion when the wheel changes its direction of movement.
  • the wheel 80 extends outside the general outline of the housing 10 when viewed in plan, and from the side. Thus if the forward end of the pool cleaner should strike an obstacle it is the wheel 80 which strikes the obstacle and not the housing itself.
  • Guide or deflecting rollers are located on sides of the housing between the wheels 76 and 80, and 78 and 80 respectively. These wheels provide rotatable surfaces which project beyond the outer perimeter of the housing 10, when viewed in plan.
  • the wheels on each side may be replaced by a support 96, shown in dotted outline, which supports a single guide or deflector wheel 98.
  • the purpose of the wheels 94, or alternatively of the wheels 98, is described hereinafter.
  • the construction of the spigot 22 is shown in detail in Figure 3.
  • the spigot 22 forms a rotatable connector for a flexible hose 100 a remote end of which is connected to a suction source of a filtration unit associated with a swimming pool.
  • the spigot 22 includes an upstanding threaded portion 102 which has a rim 104, a first ring 106 which is rotatably engaged with the rim 104, a second ring 108 which is substantially identical to the ring 106 and which is inverted facing upwardly, an upper connector 110 which has a rim 112 and a shoulder 114 which are engaged with the ring 108, and a union nut 116 which is threadedly engaged with the threaded member 102 and which retains the assembly in the indicated position.
  • the components illustrated are so dimensioned that when the union nut is tightly screwed into position a slight clearance gap 118 exists between opposing surfaces of the rings 106 and 108. This permits the upper connector 110, which is coupled to the hose 100, to be rotatable relatively to the housing 10 of the pool cleaner.
  • the pool cleaner optionally includes a chamber 120, see Figure 2, which may be filled with water and sealed.
  • a chamber 120 see Figure 2
  • the size of the chamber, its location, and the amount of water placed in the chamber, may all be varied in order to adjust the buoyancy of the pool cleaner to meet particular requirements.
  • weights 122 are located inside the hemispherical members of the front wheel 80.
  • the hose 100 extending from the pool cleaner, is connected to a suction source of a filtration system of the kind commonly encountered in swimming pools.
  • a suction source of a filtration system of the kind commonly encountered in swimming pools.
  • buoyancy of the pool cleaner is adjusted to meet requirement.
  • the buoyancy of the pool cleaner is adjusted so that when it is immersed in the water of a swimming pool it sinks to the bottom surface of the pool.
  • the specific gravity of the pool cleaner is not so much in excess of the specific gravity of water that, when the pool cleaner is in a body of water, it is heavy.
  • the wheels space the housing from the surface 14 by an amount which, together with the perimeter of the head, is carefully calculated to ensure that a reasonable suction force exists at the head 12. For example if the area at the perimeter of the head through which water flows is substantially in excess of the area of the inlet 18 then the suction force is reduced. On the other hand if the inlet 18 is substantially larger than the area around the head through which liquid can flow to the inlet then the suction force is increased.
  • the liquid flowing through the inlet 18 thus in the first instance causes the opposing area of the surface 14 to be vacuum cleaned. Secondly a suction effect is created which causes the head to adhere to the surface 14. Thirdly the liquid flowing upwardly through the turbine housing 20 impinges on vanes of the turbine 24 causing the turbine to rotate. The turbine rotates freely, and at a high speed, and does not present any significant obstacle to water flowing through the turbine housing nor to foreign material or dirt entrained in the flowing water.
  • the turbine drives the axle 26 and, via the gears 28 and 38 causes the propellor 36 to rotate. Forward thrust is therefore exerted by the propellor on the housing 10 and the housing is advanced over the surface 14 with the cleaning action continuing.
  • the wheels 76 to 80 rotate freely and low friction movement is therefore achieved.
  • the wheels are omni-directional and the pool cleaner can therefore move freely in all directions according to the forces acting on the cleaner and according to the contour of the surface 14 over which the cleaner moves.
  • the eccentric pin 54 thus slowly causes the drive link 64 to oscillate about the pivot point 66.
  • Oscillatory movement is, in a similar way, imparted to the rudder 54 which therefore oscillates, relatively slowly to the speed of the propellor 36, about its axis.
  • the rudder is positioned immediately behind the propellor 36 and consequently exerts a highly effective steering force which causes the pool cleaner continuously to change its direction of movement.
  • the pool cleaner is therefore continuously being subjected to a driving force and a steering action and consequently eventually moves over the entire surface 14 to be cleaned.
  • effects also play a part in determining the path of motion of the pool cleaner.
  • Such effects are for example the effect of the hose 100, currents in the body of water in the pool cleaner, the contours of the surface 14 which is to be cleaned, the buoyancy of the pool cleaner, and the like.
  • the hydroplanes 72 and 74 which are also positioned immediately behind the propellor 36, have the effect that the flowing stream of water produced by the propellor 36 impinges on them and so produces a downward thrust which is applied to the housing 10.
  • the rear of the housing is therefore urged into contact with the surface 14 while, as has been pointed out, the forward wheel 80 is also weighted downwardly by means of the weights 122.
  • the leading wheel 80 impinges on the side wall before any other portion of the housing.
  • this wheel is omni-directional in its movement capability and as the hydroplanes 72 and 74 exert a downward thrust on the rear of the housing 10 the pool cleaner is able to negotiate the transition from horizontal to vertical and, still adhering closely to the surface which is to be cleaned, then climb upwardly on the side wall.
  • the swivel connection 22 of the hose to the pool cleaner permits the housing 10 to rotate relatively to the hose without creating stresses or strain or resistance to movement in the hose.
  • the pool cleaner can thus climb vertical walls of a swimming pool at least until part of the pool cleaner breaks through the water surface and is exposed to atmosphere.
  • the buoyancy of the pool cleaner By suitably adjusting the buoyancy of the pool cleaner however it is possible to prevent the cleaner from emerging unduly from the water surface, a factor which could lead to all the water in the housing being drawn out by suction effect and replaced by air. This in turn would cause the pool cleaner to float on the water surface.
  • One way in which the buoyancy can be effectively adjusted is by means of the buoyancy chamber 120.
  • use may be made of weights, floats or the like to achieve a similar effect.
  • the amount of water which flows through the turbine housing is determined inter alia by the size of a pump incorporated in the filtration system.
  • the inlet 18 can be made so that it accommodates a selected washer-like member, or a selected tubular member, of a particular cross sectional area so that an inlet of an appropriate size is defined to meet the particular operating conditions.
  • the operation of the pool cleaner can also be adjusted by varying the ratio of the gears in the reduction gearbox or by altering the number of gears therein.
  • Other factors which come into play are the shape and size of the turbine, the shape and size of the propellor, the length of the drivelink 64, the position of the pivot point 66, the lengths of the slots 62 and 70, the shape of the rudder, its position relatively to the propellor, and the shapes and positions of the hydroplanes 72 and 74.
  • FIG. 4 illustrates in solid outline the slot 70 at the forward end of the drivelink 64.
  • the pin 54 fits closely inside the slot and moves to and fro as the drive wheel 52 is rotated. If for example the slot 70 has the shape indicated in dotted outline 70A then, when the pin reaches opposing limiting ends of the slot, a certain amount of lost motion occurs during which oscillatory movement of the drivelink 64 does not take place.
  • the water flowing from the propellor 36 then automatically causes the rudder 54 to be aligned with a central axis through the pool cleaner and the steering action of the rudder is inhibited until such time as the lost motion is taken up.
  • the upper cover 34 of the housing has openings 130 through which water can flow when the propellor 36 exerts its 'pumping' action. This is necessary for, if the propellor were located in a closed tube, its driving efficiency would be significantly adversely affected.
  • the guide or deflector rollers 94 on the sides of the housing are only brought into play when a side of the pool cleaner comes into contact with a side of the swimming pool. This occurs for example if the pool cleaner comes into a right-angled corner of a square or rectangular swimming pool.
  • the rollers 94 then impinge on the side wall and provide a low friction guiding effect which enables the pool cleaner to negotiate its way out of the corner.
  • the pool cleaner may become jammed in a particular location, depending on the geometry of construction of a pool, but the rudder 54 which is continuously oscillated and the propellor 36 which continuously exerts thrust on the pool cleaner, together with the omni-directional moving capabilities of the wheels 76 to 80, eventually create the correct conditions to enable the pool cleaner to free itself from the given location. It is thus only under exceptional conditions that the pool cleaner will become jammed in a position from which it is not able to extricate itself.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning In General (AREA)

Claims (16)

  1. l.- Un dispositif pour nettoyer une surface (l4) qui est immergée dans un liquide, le dispositif comprenant: une tête (l0, l2) ayant au moins une entrée (18) qui est placée en face de la surface (l4) à nettoyer, des moyens (22) pour relier la tête à une source d'aspiration, pour forcer un liquide à circuler à travers l'entrée (l8), et des moyens de turbine (24) qui sont entraînés par le liquide en circulation, caractérisé par des moyens d'hélice (36), qui sont entraînés par les moyens de turbine (24), et qui propulsent la tête (10, l2) sur la surface à nettoyer.
  2. 2.- Un dispositif selon la revendication l, qui comprend des moyens de direction (54, 64) pour modifier la direction selon laquelle la tête est propulsée sur la surface à nettoyer.
  3. 3.- Un dispositif selon la revendication 2, dans lequel les moyens de direction comprennent au moins un gouvernail (54) et des moyens de commande (44, 64) actionnés par les moyens de turbine (24) afin de faire varier l'orientation du gouvernail (54) par rapport à la tête (10, l2).
  4. 4.- Un dispositif selon la revendication 3, dans lequel les moyens de commande comprennent des moyens d'entrainement à réduction de vitesse (44), comportant un élément d'entraînement d'entrée (42) qui est entraîné par les moyens de turbine (24), et un élément d'entraînement de sortie (52, 64) qui est relié au gouvernail (54) de façon à faire varier l'orientation du gouvernail par rapport à la tête.
  5. 5.- Un dispositif selon la revendication 3 ou 4, dans lequel l'orientation du gouvernail (54) par rapport à la tête est à variation continue.
  6. 6.- Un dispositif selon l'une quelconque des revendications l a 5, comprenant des moyens de déflexion d'écoulement (72, 74) pour repousser au moins une partie de la tête vers la surface à nettoyer.
  7. 7.- Un dispositif selon l'une quelconque des revendications 1 à 6, comprenant des moyens de support rotatifs (76, 78, 80) fixés à la tête (10, l2) et qui sont en contact avec la surface à nettoyer.
  8. 8.- Un dispositif selon l'une quelconque des revendications précédentes, dans lequel la tête comporte une zone périphérique entourant l'ouverture (18), les moyens de support rotatifs (76, 78, 80) écartant la zone périphérique de la surface (14) à nettoyer.
  9. 9.- Un dispositif selon l'une quelconque des revendications 1 à 8, dans lequel la tête (10, 12) comporte au moins une chambre susceptible d'être scellée (120) et qui contient une certaine quantité de liquide.
  10. l0.- Un procédé de nettoyage d'une surface immergée dans un liquide, qui comprend les étapes consistant à: disposer une tête de nettoyage (l0, 12) selon l'une quelconque des revendications l à 9, en face de la surface (14) a nettoyer et appliquer une aspiration sur la tête, et ainsi obliger la tête à adhérer à la surface et le liquide à circuler dans la tête, ledit procédé étant caractérisé par l'étape consistant à utiliser le liquide en écoulement pour entraîner des moyens d'hélice (36), et à utiliser les moyens d'hélice (36) pour propulser la tête sur la surface à nettoyer.
  11. ll.- Un procédè selon la revendication l0, comprenant l'étape consistant à diriger le liquide en circulation à travers des moyens de filtrage.
  12. 12.- Un procédé selon la revendication 1l, comprenant l'étape consistant à régler la flottabilité de la tête en introduisant un certain volume du liquide dans une chambre (l20) de la tête susceptible d'être scellée.
  13. l3 .- Un procédé selon les revendications 1l ou 12, comprenant l'étape consistant à appliquer l'aspiration à la tête par l'intermédiaire d'un tuyau flexible (100) qui est fixé sur la tête au moyen d'un connecteur (22) qui est susceptible de tourner par rapport à la tête autour d'un axe longitudinal.
  14. 4.- Un procédé selon l'une quelconque des revendications 11 à 13, comprenant des étapes consistant à utiliser le liquide en circulation pour actionner des moyens de direction (54), et à utiliser les moyens de direction pour modifier la direction selon laquelle les moyens d'hélice (36) propulsent la tète sur la surface à nettoyer.
  15. 15.- Un procédè selon l'une quelconque des revendications l1 à l4, comprenant l'étape consistant à utiliser des moyens de support rotatifs (76, 78, 80) pour maintenir une paroi extérieure de la tête située Un face de la surface a nettoyer, écartée de ladite surface.
  16. l6.- Un dispositif de nettoyage de piscine comprenant un dispositif pour nettoyer une surface selon l'une quelconque des revendications l à 9.
EP89300008A 1988-01-07 1989-01-03 Appareil pour le nettoyage de piscines Expired - Lifetime EP0323883B1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
ZA880083 1988-01-07
ZA8883 1988-01-07
ZA880327 1988-01-19
ZA88327 1988-01-19
ZA882571 1988-04-13
ZA882571 1988-04-13

Publications (2)

Publication Number Publication Date
EP0323883A1 EP0323883A1 (fr) 1989-07-12
EP0323883B1 true EP0323883B1 (fr) 1992-09-09

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EP89300008A Expired - Lifetime EP0323883B1 (fr) 1988-01-07 1989-01-03 Appareil pour le nettoyage de piscines

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EP (1) EP0323883B1 (fr)
AU (1) AU602437B2 (fr)
DE (1) DE68902741D1 (fr)

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US9593502B2 (en) 2009-10-19 2017-03-14 Hayward Industries, Inc. Swimming pool cleaner
USD787760S1 (en) 2014-11-07 2017-05-23 Hayward Industries, Inc. Pool cleaner
USD787761S1 (en) 2014-11-07 2017-05-23 Hayward Industries, Inc. Pool cleaner
USD789003S1 (en) 2014-11-07 2017-06-06 Hayward Industries, Inc. Pool cleaner
USD789624S1 (en) 2014-11-07 2017-06-13 Hayward Industries, Inc. Pool cleaner

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SE9301144D0 (sv) * 1993-04-06 1993-04-06 Cadmac Handelsbolag Anordning foer rengoering av vaeggytor
US6854148B1 (en) 2000-05-26 2005-02-15 Poolvernguegen Four-wheel-drive automatic swimming pool cleaner
EP1290298B1 (fr) * 2000-05-26 2005-11-02 Poolvergnuegen Dispositif automatique de nettoyage de piscine a quatre roues motrices
US6984315B2 (en) 2003-12-16 2006-01-10 Dolton Iii Edward Gerard Pool cleaning device
ZA200801329B (en) * 2007-02-07 2008-12-31 Aquavac Pool Technologies Prop Swivel coupler
US10161154B2 (en) 2013-03-14 2018-12-25 Hayward Industries, Inc. Pool cleaner with articulated cleaning members and methods relating thereto
WO2014150506A1 (fr) 2013-03-15 2014-09-25 Hayward Industries, Inc. Dispositif de nettoyage de piscine doté d'ensembles entraînement de roue
ES2841937T3 (es) 2013-08-30 2021-07-12 Hayward Ind Inc Limpiador de piscinas
CN110630055B (zh) * 2019-08-27 2020-12-04 温州炘都工业设计有限公司 一种水陆两用清洁机器人
CN112170360B (zh) * 2020-08-28 2023-08-18 奥士康科技股份有限公司 一种pcb生产用清洗装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0239498A2 (fr) * 1986-03-27 1987-09-30 Chauvier, Daniel Jean Valere Denis Appareil de déplacement pour nettoyeur submergé

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9593502B2 (en) 2009-10-19 2017-03-14 Hayward Industries, Inc. Swimming pool cleaner
USD787760S1 (en) 2014-11-07 2017-05-23 Hayward Industries, Inc. Pool cleaner
USD787761S1 (en) 2014-11-07 2017-05-23 Hayward Industries, Inc. Pool cleaner
USD789003S1 (en) 2014-11-07 2017-06-06 Hayward Industries, Inc. Pool cleaner
USD789624S1 (en) 2014-11-07 2017-06-13 Hayward Industries, Inc. Pool cleaner

Also Published As

Publication number Publication date
AU602437B2 (en) 1990-10-11
EP0323883A1 (fr) 1989-07-12
AU2769789A (en) 1989-07-13
DE68902741D1 (de) 1992-10-15

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