US20040210998A1 - Programmed pool cleaning system - Google Patents
Programmed pool cleaning system Download PDFInfo
- Publication number
- US20040210998A1 US20040210998A1 US10/810,318 US81031804A US2004210998A1 US 20040210998 A1 US20040210998 A1 US 20040210998A1 US 81031804 A US81031804 A US 81031804A US 2004210998 A1 US2004210998 A1 US 2004210998A1
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- Prior art keywords
- cleaning
- pool
- rotatable
- cleaning head
- heads
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- 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.)
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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
- E04H4/12—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
-
- 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
- E04H4/169—Pool nozzles
Definitions
- cleaning systems typically include a plurality of spaced retractable cleaning heads located at various positions in the bottom, walls and steps of the pool to effect indexed sweeping of the floor, walls and steps of the pool with jets of water adjacent to and parallel to the pool surface surrounding the cleaning heads. This action moves dirt and debris which has settled onto the surface adjacent the heads away from the region being cleaned. Ultimately, the dirt ultimately moves toward the floor drain, where it then is removed by the suction inlet of a recirculating pump system for removal by filtration from the water of the pool, prior to returning the water to the cleaning heads.
- the outlet side of the recirculating pump system supplies the water back to the cleaning heads after passing it through a filter.
- a cleaning system and method for a swimming pool is operated in conjunction with a recirculating pump system which has a suction water inlet and a water outlet.
- a suction return of the swimming pool is connected to the suction water inlet of the recirculating pump system.
- the water outlet of the recirculating pump system is connected to at least a first rotatable cleaning head in the floor of the pool, located near an end of the pool for cleaning in a 360° circle.
- At least a second rotatable cleaning head is located in the floor of the pool between the first cleaning head and the suction return for cleaning in substantially a 180° arc directed toward the suction return of the pool.
- the water outlet of the recirculating pump system is connected to the first and second cleaning heads for alternately supplying water from the outlet of the recirculating pump system to these cleaning heads.
- FIG. 1 is a top diagrammatic view of a swimming pool cleaning system incorporating a preferred embodiment of the invention
- FIG. 2 is a diagrammatic cross-sectional view of a swimming pool cleaning system incorporating the preferred embodiment of the invention
- FIG. 3 is a diagrammatic representation of a recirculating pump system employed in conjunction with the embodiment shown in FIGS. 1 and 2;
- FIG. 4 is a top diagrammatic view of the same pool shown in FIG. 1 illustrating the manner of operation of a preferred embodiment of the invention.
- FIGS. 1 and 2 show a diagrammatic top view and a cross-sectional view, respectively of a typical swimming pool in which the preferred embodiment of the invention is employed.
- the swimming pool 10 generally has at least one shallow end, or is shallow at both ends with a deeper portion in which a suction return in the form of a drain 12 (or pair of drains, as shown in FIG. 1) is located.
- the pool typically is filled with water to a water level near the top edge of the pool, whereby the pool defines submerged bottom and side wall surfaces.
- the cleaning heads are located at various positions in the submerged surfaces such as the bottom and/or steps of the pool, as indicated in FIG. 1.
- the locations of different cleaning heads are designated by the circled designations 1 through 8 , carrying the reference numbers 16 , 18 , 20 , 22 , 24 , 26 , 28 and 30 for different groups or banks of cleaning heads.
- FIGS. 1 and 2 only one cleaning head is shown for each of the banks; although it should be understood that two or three, or perhaps even more, cleaning heads could be utilized for each of the different bank designations 1 through 8 , if desired.
- the number of cleaning heads on each bank or in each group, for any given pool system depends upon the size of the recirculating pump used in the system, as well as the characteristics of the water distribution valve used to alternately supply water to the different banks of cleaning heads in a pre-programmed sequence.
- a typical swimming pool of the type shown in FIGS. 1 and 2 also generally includes another suction return in the form of a skimmer 14 (or water trap for a vanishing edge pool), which also is connected to the suction inlet of the water distribution system, along with the connection of the drain 12 in the bottom of the pool.
- a recirculating water supply is utilized in the operation of a pool of the type shown in FIG. 1.
- This recirculating water supply includes a pump 36 , the vacuum side of which is connected to lines (not shown) to the skimmer 14 and the floor drains 12 .
- the outlet side of the pump 36 is connected to a filter 38 , which may be of any one of a number of standard pool filter configurations.
- Water flowing from the output of the filter 38 then either may pass directly through an open valve 42 , or, if the valve 42 is closed, through a chlorinator 40 for automatically treating the water passing out of the filter 38 .
- Two other valves 44 and 46 determine the path which will be taken by the water coming from the outlet side of the pump 36 and the filter 38 , and/or the chlorinator 40 . If the valve 46 is closed and the valve 44 is open, all of the water is returned to a single (or a plurality) of pool return inlets into the pool, typically bypassing the in-floor cleaning system described above in conjunction with FIGS. 1 and 2.
- valve 44 If the valve 44 is closed and the valve 46 is open, all of the water passing out of the filter 38 , whether directly through the valve 42 or through the chlorinator 40 , is supplied to a water distribution valve 48 , shown as having eight different outlet pipes or banks, numbered 1 through 8 , in circles in the bottom of FIG. 3.
- the water distribution valve 48 ideally is of the type described in the above mentioned U.S. Pat. No. 6,345,645; although the valve 48 could be any one of a number of water distribution valves currently used in conjunction with automatic in-floor swimming pool cleaning systems.
- the basic operation of such valves, including the valve 48 is that the water supplied to the inlet of the valve, such as through the valve 46 , is directed through the outlet ports 1 through 8 , one at a time. Consequently, the outlet ports 1 through 8 individually receive the full output of the recirculating pump 36 at any given time when the recirculation system is in operation.
- a control circuit 50 controls the dwell time of the water distribution valve 48 according the above mentioned U.S. Pat. No. 6,345,645; so that the time at which water is supplied under pressure to each of the outlet ports 1 through 8 may be varied in accordance with the use of, and location of, those ports.
- port No. 1 of the valve 48 is illustrated in FIGS. 1 and 2 as being connected to the cleaning head (or bank of heads) 16 located in a shallower portion of the pool adjacent the right-hand end, as viewed in both FIGS. 1 and 2.
- the head 16 on port 1 as well as the head or heads 18 on port 2 and those on ports 5 and 6 designated with reference Nos. 24 and 26 in the drawing of FIGS.
- the head or banks of heads connected to outlet ports 3 , 4 , 7 and 8 and numbered, respectively, 20 , 22 , 28 and 30 in FIG. 1, are located in a deeper portion of the pool, closer to the location of the drains 12 .
- the dwell times of each of these different banks is adjustable by means of the control 50 to optimize the effective cleaning which is accomplished by each head or bank of heads in the system.
- the manner in which this is done is described in greater detail in the above mentioned U.S. Pat. No. 6,345,645. It should be noted, however, that the system according to the present invention may be operated in conjunction with standard water jet distribution valves as well, in which the dwell time of each of the different ports is the same, that is, where the dwell time is not varied from one port to the other.
- the water distribution valve 48 sequentially supplies water under pressure to each of its outlet ports numbered 1 through 8 , which are connected to corresponding outlets numbered 1 through 8 in the bottom of the pool, as previously described.
- the outlet cleaning heads connected to the ports 1 , 2 , 5 and 6 are located with the cleaning heads 1 and 2 near the right-hand end of the pool, and the cleaning 5 and 6 located near the left-hand end of the pool as viewed in FIGS. 1, 2 and 4 .
- These cleaning heads are located sufficiently near the walls and ends of the pool to direct the indexed cleaning water, supplied to them when the corresponding port of the valve 48 is provided with water, to step in a 360° circle to sweep the debris from the ends and walls of the pool located adjacent these heads.
- a 360° cleaning is indicated by three concentric circles around each of these heads 16 , 18 , 24 and 26 , as illustrated in FIG. 4. The circles are shown as extending beyond the edges of the pool 10 to indicate the cleaning force is applied to the walls and sides of the pool where the walls and sides of the pool connect with the bottom to thoroughly sweep debris from all surfaces of the pool.
- the sweep of the heads 16 , 18 , 24 an 26 cannot extend beyond the pool perimeter, as is obvious.
- the operation of the pool cleaning heads connected to the ports 1 , 2 , 5 and 6 and designated as 16 , 18 , 24 and 26 is standard 360° rotation, of the type currently employed with pop-up, in-floor cleaning heads manufactured by various companies.
- One illustrative full-circle rotatable cleaning head construction is shown and described in U.S. Pat. No. 4,462,546, which is incorporated by reference herein.
- the cleaning heads of banks 3 , 4 , 7 and 8 in the pool bottom or floor are designed to index 180° and then return the opposite direction 180° to sweep debris from these heads directly toward the drains 12 , without rotating full circle to blow debris back toward the heads 16 , 18 , 24 and 26 .
- the heads 20 , 22 , 28 and 30 are supplied with water under pressure from the distribution valve 48 in the same manner as the banks of heads located throughout the bottom of in-floor pool systems have been operated in the past. The difference, however, is that the heads 20 , 22 , 28 and 30 do not do a full circle (360°) rotation; but they are pointed and programmed to sweep debris only from the point of the heads on down toward the drains.
- part-circle rotating heads 20 , 22 , 28 and 30 including the associated mechanism or mechanisms for reversibly indexing these heads within a part-circle arcuate path of about 180°, is not shown and described in detail herein, persons skilled in the art will recognize and appreciate that suitable reverse mechanisms of the type used in reversible part-circle pop-up irrigation sprinklers may be employed in an otherwise standard full-circle rotary head of the above mentioned type employed with pop-up, in-floor cleaning heads manufactured by various companies.
- cleaning heads may be modified by use of rotary drive mechanisms used in irrigation sprinklers and suitably adjusted or set for full-circle or part-circle rotation in accordance with the location of each specific pop-up cleaning head in an in-floor cleaning system.
- the part-circle rotating heads may be adjustably set for back-and-forth, reciprocal part-circle rotation through an arcuate path that is greater than or less than 180°, if desired and as appropriate for the specific location of each cleaning head in the in-floor cleaning system.
- the sequential operation is that the head 16 first is supplied with water under pressure from the distribution valve 48 . Then, the head 18 is supplied with water under pressure. Following this operation, the heads 20 and 22 connected to the ports 3 and 4 , respectively, are operated to effect their indexed cleaning in the semi-circle or 180° arcs, as shown. Following this operation, a similar set of operations takes place for the heads 24 , 26 , 28 and 30 on the opposite side of the pool. Over a period of time, the indexed cleaning of the heads 16 , 18 , 24 and 26 in a 360° circle, and the heads 20 , 22 , 28 and 30 in 180° arcs, tends to optimize the cleaning of the pool.
- suction returns connected to the suction inlet of the pump 36 have been described primarily in conjunction with a floor drain 12 , it should be noted that the system also may be used with pools which do not connect a floor drain to the suction inlet of the pump. Ths use of the term “suction inlet” is intended to cover such pool systems.
Abstract
Description
- This application is a continuation-in-part of co-pending U.S. Ser. No. 10/282,653, filed Oct. 28, 2002, which is in turn a continuation-in-part of U.S. Ser. No. 09/861,403, filed May 17, 2001, and now abandoned, which is related in turn to U.S. Pat. No. 6,345,645, issued Feb. 12, 2002.
- Many modern swimming pools are constructed with in-floor automatic cleaning systems. These systems substantially reduce, if not eliminate, the time which must be spent by pool owners or pool maintenance companies in cleaning the pools. Such cleaning systems typically include a plurality of spaced retractable cleaning heads located at various positions in the bottom, walls and steps of the pool to effect indexed sweeping of the floor, walls and steps of the pool with jets of water adjacent to and parallel to the pool surface surrounding the cleaning heads. This action moves dirt and debris which has settled onto the surface adjacent the heads away from the region being cleaned. Hopefully, the dirt ultimately moves toward the floor drain, where it then is removed by the suction inlet of a recirculating pump system for removal by filtration from the water of the pool, prior to returning the water to the cleaning heads. The outlet side of the recirculating pump system supplies the water back to the cleaning heads after passing it through a filter.
- While such in-floor pool cleaning systems are a substantial improvement over pools without such systems, ultimate cleaning still does not occur. When the cleaning heads are placed around the perimeter of the pool, these heads activate currents which blow debris up the wall and/or the corners of the pool, holding the debris suspended in the currents, and then actually depositing the debris on the other side of the cleaning head. As a consequence, when the head indexes around and points to the interior of the pool, the water currents push the debris toward the center of the pool, eventually directing it to the deep end of the pool, where the suction drain typically is located.
- Theoretically, this is good, until a second row or bank of cleaning heads intermediate the first ones and the drain operates. All of the cleaning heads in the bottom or floor of conventional in-floor pool cleaning systems have a 360° indexed circle of rotation. As a consequence, the second or intermediate row of heads has a tendency to blow the debris and dirt back behind the first row of heads to start the sequence all over again. Thus, dirt in such conventional in-floor pool cleaning systems is simply transferred back and forth, from one set of heads to the other, into the “just cleaned” zones.
- It is desirable to provide a pool cleaning system for efficiently transferring dirt and debris from all parts of the pool toward the suction drains located in the bottom of the pool, with minimal back-and-forth transfer of the debris from one bank of cleaning heads to another.
- It is an object of this invention to provide an improved swimming pool cleaning system.
- It is another object of this invention to provide an improved method for cleaning a swimming pool.
- It is an additional object of this invention to provide an improved in-floor cleaning system and method for a swimming pool.
- It is a further object of this invention to provide an improved in-floor cleaning system and method for a swimming pool, which utilizes banks of programmed cleaning heads to direct debris toward the suction return or drain of the swimming pool.
- In accordance with a preferred embodiment of the invention, a cleaning system and method for a swimming pool is operated in conjunction with a recirculating pump system which has a suction water inlet and a water outlet. A suction return of the swimming pool is connected to the suction water inlet of the recirculating pump system. The water outlet of the recirculating pump system is connected to at least a first rotatable cleaning head in the floor of the pool, located near an end of the pool for cleaning in a 360° circle. At least a second rotatable cleaning head is located in the floor of the pool between the first cleaning head and the suction return for cleaning in substantially a 180° arc directed toward the suction return of the pool. The water outlet of the recirculating pump system is connected to the first and second cleaning heads for alternately supplying water from the outlet of the recirculating pump system to these cleaning heads.
- Other features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings which illustrate, by way of example, the principles of the invention.
- The accompanying drawings illustrate the invention. In such drawings:
- FIG. 1 is a top diagrammatic view of a swimming pool cleaning system incorporating a preferred embodiment of the invention;
- FIG. 2 is a diagrammatic cross-sectional view of a swimming pool cleaning system incorporating the preferred embodiment of the invention;
- FIG. 3 is a diagrammatic representation of a recirculating pump system employed in conjunction with the embodiment shown in FIGS. 1 and 2; and
- FIG. 4 is a top diagrammatic view of the same pool shown in FIG. 1 illustrating the manner of operation of a preferred embodiment of the invention.
- Reference now should be made to the drawings, in which the same reference numbers are used throughout the different figures to designate the same or similar components. Initially, reference should be made to FIGS. 1 and 2, which show a diagrammatic top view and a cross-sectional view, respectively of a typical swimming pool in which the preferred embodiment of the invention is employed.
- The
swimming pool 10 generally has at least one shallow end, or is shallow at both ends with a deeper portion in which a suction return in the form of a drain 12 (or pair of drains, as shown in FIG. 1) is located. The pool typically is filled with water to a water level near the top edge of the pool, whereby the pool defines submerged bottom and side wall surfaces. In a pool which utilizes an automatic in-floor cleaning system using pop-up indexing cleaning heads, the cleaning heads are located at various positions in the submerged surfaces such as the bottom and/or steps of the pool, as indicated in FIG. 1. The locations of different cleaning heads are designated by thecircled designations 1 through 8, carrying thereference numbers different bank designations 1 through 8, if desired. The number of cleaning heads on each bank or in each group, for any given pool system, depends upon the size of the recirculating pump used in the system, as well as the characteristics of the water distribution valve used to alternately supply water to the different banks of cleaning heads in a pre-programmed sequence. - A typical swimming pool of the type shown in FIGS. 1 and 2 also generally includes another suction return in the form of a skimmer14 (or water trap for a vanishing edge pool), which also is connected to the suction inlet of the water distribution system, along with the connection of the
drain 12 in the bottom of the pool. In the operation of a pool of the type shown in FIG. 1, a recirculating water supply is utilized. A preferred arrangement of such a water supply is shown in FIG. 3. This recirculating water supply includes apump 36, the vacuum side of which is connected to lines (not shown) to theskimmer 14 and thefloor drains 12. This is the water which is pulled into the suction inlet of thepump 36 to remove the water from the pool for filtration and recirculation. The outlet side of thepump 36 is connected to afilter 38, which may be of any one of a number of standard pool filter configurations. - Water flowing from the output of the
filter 38 then either may pass directly through anopen valve 42, or, if thevalve 42 is closed, through achlorinator 40 for automatically treating the water passing out of thefilter 38. Twoother valves pump 36 and thefilter 38, and/or thechlorinator 40. If thevalve 46 is closed and thevalve 44 is open, all of the water is returned to a single (or a plurality) of pool return inlets into the pool, typically bypassing the in-floor cleaning system described above in conjunction with FIGS. 1 and 2. If thevalve 44 is closed and thevalve 46 is open, all of the water passing out of thefilter 38, whether directly through thevalve 42 or through thechlorinator 40, is supplied to awater distribution valve 48, shown as having eight different outlet pipes or banks, numbered 1 through 8, in circles in the bottom of FIG. 3. - The
water distribution valve 48 ideally is of the type described in the above mentioned U.S. Pat. No. 6,345,645; although thevalve 48 could be any one of a number of water distribution valves currently used in conjunction with automatic in-floor swimming pool cleaning systems. The basic operation of such valves, including thevalve 48, is that the water supplied to the inlet of the valve, such as through thevalve 46, is directed through theoutlet ports 1 through 8, one at a time. Consequently, theoutlet ports 1 through 8 individually receive the full output of therecirculating pump 36 at any given time when the recirculation system is in operation. - In the system shown in FIG. 3, a
control circuit 50 controls the dwell time of thewater distribution valve 48 according the above mentioned U.S. Pat. No. 6,345,645; so that the time at which water is supplied under pressure to each of theoutlet ports 1 through 8 may be varied in accordance with the use of, and location of, those ports. For example, port No. 1 of thevalve 48 is illustrated in FIGS. 1 and 2 as being connected to the cleaning head (or bank of heads) 16 located in a shallower portion of the pool adjacent the right-hand end, as viewed in both FIGS. 1 and 2. Thehead 16 onport 1, as well as the head orheads 18 onport 2 and those onports outlet ports drains 12. - In the operation of the cleaning system, the dwell times of each of these different banks is adjustable by means of the
control 50 to optimize the effective cleaning which is accomplished by each head or bank of heads in the system. The manner in which this is done is described in greater detail in the above mentioned U.S. Pat. No. 6,345,645. It should be noted, however, that the system according to the present invention may be operated in conjunction with standard water jet distribution valves as well, in which the dwell time of each of the different ports is the same, that is, where the dwell time is not varied from one port to the other. - Reference should now be made to FIG. 4 taken again in conjunction with the illustrations of FIGS. 1 and 2. In the system under consideration, the
water distribution valve 48 sequentially supplies water under pressure to each of its outlet ports numbered 1 through 8, which are connected to corresponding outlets numbered 1 through 8 in the bottom of the pool, as previously described. In the system disclosed here, the outlet cleaning heads connected to theports cleaning valve 48 is provided with water, to step in a 360° circle to sweep the debris from the ends and walls of the pool located adjacent these heads. Such a 360° cleaning is indicated by three concentric circles around each of theseheads pool 10 to indicate the cleaning force is applied to the walls and sides of the pool where the walls and sides of the pool connect with the bottom to thoroughly sweep debris from all surfaces of the pool. In actuality, the sweep of theheads ports - The cleaning heads of
banks drains 12, without rotating full circle to blow debris back toward theheads heads distribution valve 48 in the same manner as the banks of heads located throughout the bottom of in-floor pool systems have been operated in the past. The difference, however, is that theheads - As is evident from an examination of the diagram of FIG. 4, all of the circles or semi-circles of cleaning of the different heads overlap one another. This is to insure that the entire floor of the pool is swept by these heads.
- While the specific construction of the part-circle
rotating heads - Illustrative pop-up irrigation sprinklers employing reversible and adjustably set part-circle reversing mechanisms that can be used in the production of part-circle pop-up cleaning heads for an in-floor pool cleaning system as described herein, are shown and described in detail in U.S. Pat. Nos. 3,187,056; 3,713,584; 3,724,757; 3,930,618; 4,253,608; 4,417,691; 4,625,914; 4,634,052; 4,699,321; 4,708,291; 4,87,558; 4,955,542; 5,148,991; and 5,383,600; as well as U.S. Publication U.S.2002/0092924, all of which are incorporated by reference herein.
- In the operation of the system shown in FIGS. 3 and 4, the sequential operation is that the
head 16 first is supplied with water under pressure from thedistribution valve 48. Then, thehead 18 is supplied with water under pressure. Following this operation, theheads ports heads heads heads heads heads - While the suction returns connected to the suction inlet of the
pump 36 have been described primarily in conjunction with afloor drain 12, it should be noted that the system also may be used with pools which do not connect a floor drain to the suction inlet of the pump. Ths use of the term “suction inlet” is intended to cover such pool systems. - The foregoing description of the preferred embodiment of the invention should be considered as illustrative and not as limiting. Various changes will occur to those skilled in the art for performing substantially the same function, in substantially the same way, to achieve substantially the same result, without departing from the true scope of the invention as defined in the appended claims.
Claims (24)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US10/810,318 US20040210998A1 (en) | 2001-05-17 | 2004-03-25 | Programmed pool cleaning system |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US86140301A | 2001-05-17 | 2001-05-17 | |
US10/282,653 US20030056284A1 (en) | 2001-05-17 | 2002-10-28 | Programmed pool cleaning system |
US10/810,318 US20040210998A1 (en) | 2001-05-17 | 2004-03-25 | Programmed pool cleaning system |
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Application Number | Title | Priority Date | Filing Date |
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US10/282,653 Continuation-In-Part US20030056284A1 (en) | 2001-05-17 | 2002-10-28 | Programmed pool cleaning system |
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US20040210998A1 true US20040210998A1 (en) | 2004-10-28 |
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ID=33302614
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US10/810,318 Abandoned US20040210998A1 (en) | 2001-05-17 | 2004-03-25 | Programmed pool cleaning system |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2010140978A1 (en) * | 2009-06-04 | 2010-12-09 | Wah Liang Chua | Swimming pool auto clean system |
US20130007954A1 (en) * | 2009-01-30 | 2013-01-10 | Aspen Research, Ltd. | Method and apparatus for cleaning pools with reduced energy consumption |
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US4625914A (en) * | 1985-05-16 | 1986-12-02 | Rain Bird Consumer Products Mfg. Corp. | Rotary drive sprinkler |
US4699321A (en) * | 1985-08-21 | 1987-10-13 | The Toro Company | Sprinkler head drain valve |
US4787542A (en) * | 1986-09-15 | 1988-11-29 | Clik-Cut, Inc. | Foil dispenser for and methods of dispensing foil |
US4708291A (en) * | 1986-12-16 | 1987-11-24 | The Toro Company | Oscillating sprinkler |
US5148991A (en) * | 1990-12-13 | 1992-09-22 | Kah Jr Carl L C | Gear driven transmission for oscillating sprinklers |
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US6345645B1 (en) * | 1999-12-01 | 2002-02-12 | Caretaker Systems, Inc. | Fluid distribution valve |
US6279177B1 (en) * | 2000-04-06 | 2001-08-28 | Cary Gloodt | Method and apparatus for purging water from a whirlpool system |
US6280639B1 (en) * | 2000-06-20 | 2001-08-28 | Pedro G. Ortiz | Method and apparatus for automatic cleaning of a swimming pool |
US20020092924A1 (en) * | 2001-01-16 | 2002-07-18 | Ingham John W. | Gear drive sprinkler |
US20030056284A1 (en) * | 2001-05-17 | 2003-03-27 | Lester Mathews | Programmed pool cleaning system |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130007954A1 (en) * | 2009-01-30 | 2013-01-10 | Aspen Research, Ltd. | Method and apparatus for cleaning pools with reduced energy consumption |
US8820355B2 (en) * | 2009-01-30 | 2014-09-02 | Aspen Research, Ltd | Method and apparatus for cleaning pools with reduced energy consumption |
WO2010140978A1 (en) * | 2009-06-04 | 2010-12-09 | Wah Liang Chua | Swimming pool auto clean system |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: POLARIS POOL SYSTEMS, INC., A CORP. OF DELAWARE, C Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MATHEWS, LESTER;REEL/FRAME:015368/0545 Effective date: 20040517 |
|
AS | Assignment |
Owner name: ZODIAC POOL CARE, INC.,CALIFORNIA Free format text: CHANGE OF NAME;ASSIGNOR:POLARIS POOL SYSTEMS, INC.;REEL/FRAME:018590/0369 Effective date: 20060901 Owner name: ZODIAC POOL CARE, INC., CALIFORNIA Free format text: CHANGE OF NAME;ASSIGNOR:POLARIS POOL SYSTEMS, INC.;REEL/FRAME:018590/0369 Effective date: 20060901 |
|
AS | Assignment |
Owner name: ZODIAC POOL CARE, INC.,CALIFORNIA Free format text: CHANGE OF NAME;ASSIGNOR:POLARIS POOL SYSTEMS, INC.;REEL/FRAME:018606/0226 Effective date: 20060901 Owner name: ZODIAC POOL CARE, INC., CALIFORNIA Free format text: CHANGE OF NAME;ASSIGNOR:POLARIS POOL SYSTEMS, INC.;REEL/FRAME:018606/0226 Effective date: 20060901 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |