EP0314259A2 - Automatisches Reinigungsgerät einer versenkten Fläche - Google Patents
Automatisches Reinigungsgerät einer versenkten Fläche Download PDFInfo
- Publication number
- EP0314259A2 EP0314259A2 EP88202702A EP88202702A EP0314259A2 EP 0314259 A2 EP0314259 A2 EP 0314259A2 EP 88202702 A EP88202702 A EP 88202702A EP 88202702 A EP88202702 A EP 88202702A EP 0314259 A2 EP0314259 A2 EP 0314259A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- finger
- liquid
- electromagnet
- pump
- cleaning device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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Classifications
-
- 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
- the invention relates to an apparatus for automatically cleaning a surface immersed in a liquid, in particular the walls and bottom of a swimming pool. It relates to a device of the type comprising an electric motor for driving the device along the submerged surface and a filtration chamber associated with an electric pump integrated in the device to generate a circulation of liquid in said filtration chamber.
- the present invention proposes to remedy the above-mentioned faults of cleaning devices of the type mentioned above comprising an electric drive motor and an on-board electric pump.
- One objective is to authorize, if necessary, precise and easy control of the trajectory followed by the aircraft.
- the automatic cleaning apparatus targeted by the invention comprises a hollow body, members for driving said body on the surface to be cleaned, a reversible electric motor arranged in the body to transmit a rotational movement to said members.
- drive means for supplying power to said motor comprising means for sequential reversal of the direction of the electric current, a filtration chamber situated inside the body, a liquid inlet to the filtration chamber situated at the base of the body, a pump driven by an electric motor for causing the liquid to circulate in the filtration chamber, and an outlet for the liquid discharged by the pump, disposed opposite the base of the body;
- the apparatus comprises at least one movable finger arranged on one side of the body so as to be able to have two positions, a passive position where said finger is set back relative to the plane of contact of the drive members with the surface submerged, and an active position where said finger comes to or exceeds this plane, said finger being associated with remote control means adapted to cause its displacement from one position to the other.
- two movable fingers will be arranged symmetrically with respect to the longitudinal axial plane of the body; these independently controlled fingers allow the user to rotate the device in one direction or the other, acting, when they come in the active position, as a pivoting and braking member around which the device rotates naturally through the effect of its training.
- the remote control means of each finger comprise: - an electromagnet provided with a core constituted by said finger, which is arranged so as to be in its active position when said electromagnet is excited, means of electrical excitation of said electromagnet, - And means for returning the finger to its passive position in the absence of excitation.
- the device shown by way of example in the figures is made up of two parts, one 1 submerged, constituting the device itself ( Figures 1, 2, 3), the other formed by means of power supply to said device which is housed in a box 3 located outside the liquid at the edge of the swimming pool ( Figures 4, 5 and 6).
- the device 1 and its supply means are connected by sheathed electrical conductors which form a sealed cable which can be seen in 4 in Figures 1 and 6; the cable 4 has an appropriate length to allow the device 1 to access all the areas of the submerged surface of the pool.
- the device 1 (FIGS. 1, 2 and 3) consists of a body 5 open at its base, the latter being equipped with a closure plate 6 provided with inlets 6a for sucking the liquid in the vicinity of the surface to clean ; these inlets are preferably provided with valves preventing the exit of impurities or residues, when the device is no longer under suction.
- the body 5 is provided at its upper part with a discharge outlet 7, located opposite the base of said body so as to discharge the liquid in a direction orthogonal thereto.
- the body 5 is internally equipped with a sealed casing 8 which is housed therein along its transverse axis as shown in the figures.
- This casing comprises externally, on its transverse walls and under its bottom, ribs such as 9.
- the body 5 forms around the casing 8 a filtration chamber 5a equipped with a flexible filtration pocket 10 which is fixed to the base of the body around the periphery of the plate 6.
- This pocket is formed by a membrane of a flexible mesh material or knitted of a type known per se; under the effect of the suction, it bears against the ribs 9 of the casing 8 which keep it at a distance from the latter, so that the filtration takes place through almost the entire surface of the pocket 10.
- the casing 8 contains, on the one hand, an electric pump motor 11 disposed in a central zone thereof, on the other hand, a reversible drive motor 12 disposed in the eccentric position transversely to this central area.
- the pump motor 11 drives a propeller or axial impeller 14 through a shaft 13, which is disposed in a sleeve 15 for guiding the flow, inserted in the outlet 7.
- the drive motor 12 drives by a shaft 16 a transmission wheel 17 which is connected by rubberized belts 18 to two wheels such as 19, arranged at the two longitudinal ends of the body. Each of these wheels drives a transverse cylindrical roller 20 covered by a flexible sleeve of cellular polyurethane foam 21.
- the two sleeves 21 are arranged to come into contact with the immersed surface and fulfill the double function of generating a progression of the device in one direction or the other depending on the direction of rotation of the motor 12, and to ensure a brushing of the surface tending to detach the impurities or deposits therefrom, which are then sucked into the filtration chamber 5a.
- the windings of the pump motor 11 and those of the drive motor 12 are supplied with low voltage (in particular 12 or 24 volts) by two pairs of sheathed conductors grouped in the waterproof cable 4 already mentioned.
- a float 22 formed by a hollow cylinder is articulated above the body 5 on the sides of the latter in a transverse plane.
- This float which can contain a mobile weight such as a lead ball, cooperates with the off-center of the motor 12 to unbalance the device when it is at the level of the water line; it thus conditions a lateral movement of the device along this line.
- the float 22 is also used to grip the device during handling.
- the body 5 carries on either side two electromagnets 23 and 24 which are fixed externally in the vicinity of the base thereof; these electromagnets are arranged in the transverse plane of symmetry so that the one which is located on the side of the transmission means (17, 18, 19) comes to be housed below the transmission wheel 17.
- Flanges such as 25 are fixed on either side of the body to protect these electromagnets and the transmission means.
- Each electromagnet 23 or 24, the winding of which is sealed in a block of resin, is provided with a magnetic core which is in the form of a vertical direction finger 26 provided at the top with an enlarged head 26a and in the lower part of a non-slip heel 26b; a spring 27 biases the finger 26 upwards and, in the absence of excitation, maintains it in a passive high position, in which its heel 26b is located set back relative to the plane passing through the low generatrices of the sleeves 21 (contact plane with the submerged surface).
- Each electromagnet is arranged so that, when its winding is excited, the finger undergoes a downward movement which brings it into an active low position in which its lower heel 26b is located projecting from the contact plane cited above. Thus, in this position, the device pivots around the finger and the user can cause said device to veer from a precise angle determined by adjusting the excitation time of the electromagnet considered.
- the windings of the electromagnets 23 and 24 are electrically supplied with low voltage by four sheathed conductors which are either integrated into the cable 4 (device originally comprising said electromagnets), or joined in another cable attached to the first by conventional attachment means (optional guide, added later).
- FIG. 4 is a block diagram of the electrical connections of the device. This figure shows at 28 the two conductors through which the pump motor 11 is supplied, at 29 the two conductors through which the drive motor 12 is supplied, at 30 the two conductors through which the electromagnet 23 is excited and at 31 the two conductors by which the electromagnet 24 is excited.
- the conductors 28 and 29 which supply the pump motor 11 and the drive motor 12 are connected to a power supply unit 33 which receives the low voltage and an example of which will be described later with reference to FIG. 5.
- the conductors 30 and 31 for excitation of the electromagnets are connected to the low voltage through, on the one hand, a voltage adapter 34 of conventional type, on the other hand, a mobile control box 35 that the user can take in hand to guide the device by appropriately exciting said electromagnets.
- This control box 35 is connected to the box 3 by a cable 36 which, in addition to the excitation control conductors, contains conductors for manual reversal of the direction of the drive motor 12; these conductors are connected to the power supply 33 and, as will be seen below, the action of the manual reversing button of the housing 35 is validated when the block 33 is placed in the state corresponding to manual operation.
- block 33 below above mentioned includes: - a MANUAL / AUTOMATIC switch 37 allowing either manual or automatic operation of the device, - a potentiometer 38 for adjusting the pump cut-off frequency, - a potentiometer 39 for adjusting the pump cut-off time, - and a potentiometer for adjusting the frequency of reversals of the drive motor 12.
- the supply circuit attached to the pump motor 11 comprises two comparators 41 and 42 which receive, on the one hand, different reference voltages generated by a voltage divider 43, on the other hand, the adjustable voltages from the potentiometers 38 and 39. These potentiometers allow the charging and discharging of a polarized capacitor 44 and are themselves polarized by diodes 45.
- the negative voltage from the potentiometer 39 and from the discharge of the capacitor 44 is compared in the comparator 42 to the reference voltage and causes a flip-flop 46 to topple when it reaches this reference voltage.
- the pump motor which was stopped during the discharge of the capacitor 44 is supplied by the effect of the control signal from the flip-flop 46: this signal is amplified in an output stage 47 and is delivered to an interface 48 voltage adaptation when the switch 37 is in the automatic position; the interface 48 delivers a control signal adapted to the power stage 49 (relay or other) which supplies the pump 11.
- the capacitor 44 is recharged through the potentiometer 38; when the charging voltage becomes equal to the reference voltage of the comparator 41, the rocker is again switched and delivers a signal causing the pump motor 11 to stop and the cycle can be repeated.
- the parameters of the components are adjusted so as to obtain the following adjustment ranges: - duration of a pump cut-off between 1 ⁇ and 60 ⁇ , - cutoff frequency between 10 and 360 cuts / hour.
- the supply circuit attached to the drive motor 12 is similar to the previous one, with the following differences.
- the signal is divided by 2 in a divider 52 and is sent with the initial signal in logic gates 53 and 54 which operate alternately, with a delay time between two opposite half-waves.
- these alternations generate positive or negative power for the motor 12.
- the resistance 50 can be adjusted as a function of the parameters of the other components so that the successive edges of two successive opposite half-waves are offset by a time of the order of 3 ⁇ ; this delay allows the motor to stop naturally at each reversal and to start in the opposite direction without risk of deterioration.
- the potentiometer 40 can be chosen as a function of the parameters of the other components to obtain a range of adjustment of the inversion frequency of between 5 and 360 inversions / hour.
- the device When the pump motor 11 is switched off, the device is no longer applied against the submerged surface by reaction of the outgoing flow through the outlet 7; if it is on a flat surface (pool bottom), the slightest action exterior modifies its trajectory and in particular the slight traction of cable 4 causes it to deviate (this cut with deviation from trajectory is shown diagrammatically in P en in FIG. 7). If, on the contrary, the device is on a vertical or very inclined surface (pool walls), it slides along it until it comes into contact with the bottom (point P2 in Figure 7).
- the pump cut-off time is longer in the case of a large pool, to give the device time to slide completely along the vertical walls if it is at the water line (this pool being assumed to be deeper than the small pool).
- the setting of the cut-off time determines the amplitude of the angular deviation carried out at each cut.
- the inversion frequency is expected to be low enough so that the device has time to cover the greatest length without retracing its steps.
- the pump cut-off frequency is expected to be higher so that the device slides along the vertical walls shortly after reaching the water line. If the device traverses the pool lengthwise, an intermediate cut (P1) leads to a deviation from its trajectory.
- P1 is the symbol of a cut in the pump and I that of a reversal of the direction of progression).
- FIG. 8 the trajectory of an apparatus adjusted to clean the bottom of a swimming pool pit.
- the inversions are adjusted at a frequency such that the path of the device between two inversions is of the order of the length of the pit.
- the pump cutoff frequency is set to a higher value so as to cause deviations from frequent trajectories; in addition, the duration of the cuts is also expected to be of a higher value in order to generate greater deviations.
- Figure 9 illustrates the opposite case where the user wishes to clean more particularly the vertical walls and the water line.
- the inversion frequency is provided at a very low value (5 to 10 / hour), the inversion being essentially intended to avoid any possible jamming of the device in a corner.
- the cut-off frequency of the pump is on the contrary adjusted to a much higher value depending on the height of the vertical walls to be cleaned, in order to lead to a trajectory of the type of that of FIG. 9. After the device has fallen, -this goes up along the wall, arrives at the water line, moves transversely under the effect of the imbalance already mentioned, until a new cut of pump makes it fall.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP88202702A EP0314259B1 (de) | 1984-07-11 | 1985-06-13 | Automatisches Reinigungsgerät einer versenkten Fläche |
AT88202702T ATE72008T1 (de) | 1984-07-11 | 1985-06-13 | Automatisches reinigungsgeraet einer versenkten flaeche. |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8411609A FR2567552B1 (fr) | 1984-07-11 | 1984-07-11 | Appareil de nettoyage automatique d'une surface immergee |
FR8411609 | 1984-07-11 | ||
EP88202702A EP0314259B1 (de) | 1984-07-11 | 1985-06-13 | Automatisches Reinigungsgerät einer versenkten Fläche |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85200932.3 Division | 1985-06-13 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0314259A2 true EP0314259A2 (de) | 1989-05-03 |
EP0314259A3 EP0314259A3 (en) | 1990-07-25 |
EP0314259B1 EP0314259B1 (de) | 1992-01-22 |
Family
ID=26115454
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88202702A Expired - Lifetime EP0314259B1 (de) | 1984-07-11 | 1985-06-13 | Automatisches Reinigungsgerät einer versenkten Fläche |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0314259B1 (de) |
AT (1) | ATE72008T1 (de) |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5245723A (en) * | 1990-10-31 | 1993-09-21 | 3S Systemtechnik Ag | Self-propelled cleaning apparatus, particularly for swimming pools |
WO1995002103A1 (en) * | 1993-07-09 | 1995-01-19 | Arneson Products, Inc. | Automatic pool cleaning apparatus |
EP0657603A1 (de) * | 1993-12-03 | 1995-06-14 | Ercole Frattini | Selbstfahrendes elektromechanisches Unterwassergerät zum Reinigen von Schwimmbadboden und -wänden |
FR2731168A1 (fr) * | 1995-03-02 | 1996-09-06 | Maytronics Ltd | Dispositifs de traction pour robots |
US5706539A (en) * | 1995-08-07 | 1998-01-13 | Fukuda; Kakutaro | Water tank cleaning machine |
FR2818681A1 (fr) | 2000-12-21 | 2002-06-28 | Zodiac Pool Care Europe | Cassette laterale de transmission pour appareil roulant automoteur nettoyeur de surface immergee |
US20150314453A1 (en) * | 2012-12-22 | 2015-11-05 | Maytronics Ltd. | Autonomous pool cleaning robot with an external docking station |
US9677294B2 (en) | 2013-03-15 | 2017-06-13 | Hayward Industries, Inc. | Pool cleaning device with wheel drive assemblies |
US9758979B2 (en) | 2009-10-19 | 2017-09-12 | Hayward Industries, Inc. | Swimming pool cleaner |
US9878739B1 (en) | 2017-05-11 | 2018-01-30 | Hayward Industries, Inc. | Pool cleaner modular drivetrain |
US9885194B1 (en) | 2017-05-11 | 2018-02-06 | Hayward Industries, Inc. | Pool cleaner impeller subassembly |
US9885196B2 (en) | 2015-01-26 | 2018-02-06 | Hayward Industries, Inc. | Pool cleaner power coupling |
US9885195B1 (en) | 2017-05-11 | 2018-02-06 | Hayward Industries, Inc. | Pool cleaner roller assembly |
US9896858B1 (en) | 2017-05-11 | 2018-02-20 | Hayward Industries, Inc. | Hydrocyclonic pool cleaner |
US9909333B2 (en) | 2015-01-26 | 2018-03-06 | Hayward Industries, Inc. | Swimming pool cleaner with hydrocyclonic particle separator and/or six-roller drive system |
US10156083B2 (en) | 2017-05-11 | 2018-12-18 | Hayward Industries, Inc. | Pool cleaner power coupling |
US10161153B2 (en) | 2017-05-11 | 2018-12-25 | Hayward Industries, Inc. | Pool cleaner canister handle |
US10161154B2 (en) | 2013-03-14 | 2018-12-25 | Hayward Industries, Inc. | Pool cleaner with articulated cleaning members and methods relating thereto |
US10214933B2 (en) | 2017-05-11 | 2019-02-26 | Hayward Industries, Inc. | Pool cleaner power supply |
US10364905B2 (en) | 2017-05-11 | 2019-07-30 | Hayward Industries, Inc. | Pool cleaner check valve |
US10676950B2 (en) | 2017-05-11 | 2020-06-09 | Hayward Industries, Inc. | Pool cleaner roller latch |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8343339B2 (en) | 2008-09-16 | 2013-01-01 | Hayward Industries, Inc. | Apparatus for facilitating maintenance of a pool cleaning device |
USD630809S1 (en) | 2009-07-01 | 2011-01-11 | Hayward Industries, Inc. | Pool cleaner |
USD630808S1 (en) | 2009-07-01 | 2011-01-11 | Hayward Industries, Inc. | Pool cleaner |
US8784652B2 (en) | 2010-09-24 | 2014-07-22 | Poolvergnuegen | Swimming pool cleaner with a rigid debris canister |
US8869337B2 (en) | 2010-11-02 | 2014-10-28 | Hayward Industries, Inc. | Pool cleaning device with adjustable buoyant element |
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 |
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 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1238649B (de) * | 1964-02-08 | 1967-04-13 | Walter Haack | Bodenreinigungs- und Behandlungsgeraet fuer Schwimmbecken |
US4168557A (en) * | 1976-12-15 | 1979-09-25 | Rasch Wilhelm | Pool cleaners |
FR2445409A1 (fr) * | 1978-12-27 | 1980-07-25 | Sommer Schenk Ag | Appareil de nettoyage sous l'eau, en particulier epurateur de piscine |
FR2520421A1 (fr) * | 1982-01-26 | 1983-07-29 | Puech Frederic | Appareil perfectionne de nettoyage automatique d'une surface immergee, en particulier de parois de piscine |
-
1985
- 1985-06-13 EP EP88202702A patent/EP0314259B1/de not_active Expired - Lifetime
- 1985-06-13 AT AT88202702T patent/ATE72008T1/de not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1238649B (de) * | 1964-02-08 | 1967-04-13 | Walter Haack | Bodenreinigungs- und Behandlungsgeraet fuer Schwimmbecken |
US4168557A (en) * | 1976-12-15 | 1979-09-25 | Rasch Wilhelm | Pool cleaners |
FR2445409A1 (fr) * | 1978-12-27 | 1980-07-25 | Sommer Schenk Ag | Appareil de nettoyage sous l'eau, en particulier epurateur de piscine |
FR2520421A1 (fr) * | 1982-01-26 | 1983-07-29 | Puech Frederic | Appareil perfectionne de nettoyage automatique d'une surface immergee, en particulier de parois de piscine |
Cited By (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0483470B1 (de) * | 1990-10-31 | 1996-05-08 | 3S Systemtechnik Ag | Selbstfahrendes Reinigungsgerät, insbesondere für Schwimmbecken |
US5245723A (en) * | 1990-10-31 | 1993-09-21 | 3S Systemtechnik Ag | Self-propelled cleaning apparatus, particularly for swimming pools |
WO1995002103A1 (en) * | 1993-07-09 | 1995-01-19 | Arneson Products, Inc. | Automatic pool cleaning apparatus |
US5435031A (en) * | 1993-07-09 | 1995-07-25 | H-Tech, Inc. | Automatic pool cleaning apparatus |
US5617600A (en) * | 1993-12-03 | 1997-04-08 | Frattini; Ercole | Self-propelled underwater electromechanical apparatus for cleaning the bottom and walls of swimming pools |
EP0657603A1 (de) * | 1993-12-03 | 1995-06-14 | Ercole Frattini | Selbstfahrendes elektromechanisches Unterwassergerät zum Reinigen von Schwimmbadboden und -wänden |
FR2731168A1 (fr) * | 1995-03-02 | 1996-09-06 | Maytronics Ltd | Dispositifs de traction pour robots |
US5706539A (en) * | 1995-08-07 | 1998-01-13 | Fukuda; Kakutaro | Water tank cleaning machine |
FR2818681A1 (fr) | 2000-12-21 | 2002-06-28 | Zodiac Pool Care Europe | Cassette laterale de transmission pour appareil roulant automoteur nettoyeur de surface immergee |
US7117554B2 (en) | 2000-12-21 | 2006-10-10 | Zodiac Pool Care Europe | Lateral transmission casing for a self-propelled running apparatus for cleaning a immersed surface |
US9758979B2 (en) | 2009-10-19 | 2017-09-12 | Hayward Industries, Inc. | Swimming pool cleaner |
US9784007B2 (en) | 2009-10-19 | 2017-10-10 | Hayward Industries, Inc. | Swimming pool cleaner |
US9903130B2 (en) * | 2012-12-22 | 2018-02-27 | Maytronics Ltd. | Autonomous pool cleaning robot with an external docking station |
US20150314453A1 (en) * | 2012-12-22 | 2015-11-05 | Maytronics Ltd. | Autonomous pool cleaning robot with an external docking station |
US10161154B2 (en) | 2013-03-14 | 2018-12-25 | Hayward Industries, Inc. | Pool cleaner with articulated cleaning members and methods relating thereto |
US9677294B2 (en) | 2013-03-15 | 2017-06-13 | Hayward Industries, Inc. | Pool cleaning device with wheel drive assemblies |
US9909333B2 (en) | 2015-01-26 | 2018-03-06 | Hayward Industries, Inc. | Swimming pool cleaner with hydrocyclonic particle separator and/or six-roller drive system |
US9885196B2 (en) | 2015-01-26 | 2018-02-06 | Hayward Industries, Inc. | Pool cleaner power coupling |
US11236523B2 (en) | 2015-01-26 | 2022-02-01 | Hayward Industries, Inc. | Pool cleaner with cyclonic flow |
US10557278B2 (en) | 2015-01-26 | 2020-02-11 | Hayward Industries, Inc. | Pool cleaner with cyclonic flow |
US10161153B2 (en) | 2017-05-11 | 2018-12-25 | Hayward Industries, Inc. | Pool cleaner canister handle |
US10156083B2 (en) | 2017-05-11 | 2018-12-18 | Hayward Industries, Inc. | Pool cleaner power coupling |
US10155538B2 (en) | 2017-05-11 | 2018-12-18 | Hayward Industries, Inc. | Pool cleaner modular drivetrain |
US9885194B1 (en) | 2017-05-11 | 2018-02-06 | Hayward Industries, Inc. | Pool cleaner impeller subassembly |
US9878739B1 (en) | 2017-05-11 | 2018-01-30 | Hayward Industries, Inc. | Pool cleaner modular drivetrain |
US10214933B2 (en) | 2017-05-11 | 2019-02-26 | Hayward Industries, Inc. | Pool cleaner power supply |
US10253517B2 (en) | 2017-05-11 | 2019-04-09 | Hayward Industries, Inc. | Hydrocyclonic pool cleaner |
US10364905B2 (en) | 2017-05-11 | 2019-07-30 | Hayward Industries, Inc. | Pool cleaner check valve |
US9896858B1 (en) | 2017-05-11 | 2018-02-20 | Hayward Industries, Inc. | Hydrocyclonic pool cleaner |
US10676950B2 (en) | 2017-05-11 | 2020-06-09 | Hayward Industries, Inc. | Pool cleaner roller latch |
US10767382B2 (en) | 2017-05-11 | 2020-09-08 | Hayward Industries, Inc. | Pool cleaner impeller subassembly |
US9885195B1 (en) | 2017-05-11 | 2018-02-06 | Hayward Industries, Inc. | Pool cleaner roller assembly |
Also Published As
Publication number | Publication date |
---|---|
ATE72008T1 (de) | 1992-02-15 |
EP0314259A3 (en) | 1990-07-25 |
EP0314259B1 (de) | 1992-01-22 |
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