The present invention relates to the general subject matter of maintaining artificial aquatic systems and, more particularly, to methods and apparatus for filtering or purifying the water in an aquatic life support system such as an ornamental pond.
Ornamental pools, ponds, and similar water-filled structures are familiar fixtures in many homes and businesses. These bodies of water provide a pleasant environment for the occupants of the adjacent structure and, in some cases, create habitats for birds, small mammals, and various reptiles and amphibians. However, because these bodies of water are closed systems, some mechanism must be established to keep the water that is contained therein from becoming fouled and stagnant.
One such apparatus that is frequently found used in connection with captive pools of water is a filtering/aerating system. In a conventional arrangement, the water in the pond is continuously circulated through some combination of skimmers and filters, thereby reducing the level of particulate mater suspended within the water. Additionally, such water movement is usually designed to oxygenate the water, thereby making it possible for the pond to support aquatic life, such as fish, water plants, amphibians and such.
The pond filter takes water from the pond and subjects it to a filtering process before returning it to the pond from whence the water was drawn. Preferably, the filter will be outfitted with filtering media (such as lava rocks, coarse nylon mesh filter mats, etc.) and water will be passed through the filtering media before it is returned to the pond. Additionally, the filter may be adapted to return water to the pond in the form of a waterfall, which waterfall has both aesthetic as well as functional (e.g., aerating the pond water) value. All of this is well known.
However, the problem of maintaining the quality of water in ornamental ponds, while simple conceptually (e.g., filter and aerate) is never quite so easily implemented in practice. For example, debris will tend to accumulate in the filter media which can, over time, drastically reduce its effectiveness. In some instances, the filter can become blocked to the extent that the flowing water must force a path around the periphery of the filter, thereby completely (or nearly so) thwarting its purpose. As a consequence, the pond owner will be tasked periodically with the chore of removing and cleaning the filter media. Of course, that may prove to be a difficult and messy task depending on the location of the filter. For example, in some instances the filtering component may be hidden from view by rocks, dirt, etc., in order to give the pond a more natural appearance. This camouflage will typically need to be removed prior to accessing the interior of the filter, further increasing the difficulty of the procedure.
Additionally, aeration of the circulated water may not occur to the extent desired. Keeping the water aerated is necessary for reducing algae growth, increasing water clarity, encouraging aerobic bacteria colonization, and generally for promoting healthy aquatic life. However, conventional skimmer/filter combinations may not always provide sufficient aeration. Even those that utilize artificial waterfalls may need additional infusions of oxygen, depending on the size of the pool, the amount of aquatic life, the volume of the waterfall, etc.
Further, conventional pond filters are subject to a number of problems. First, these devices have heretofore not provided sufficient sedimentation opportunities for the pond water. That is, water that is drawn into the filter will usually contain a variety of heavier waste particles (e.g., fish waste, uneaten fish food, leaves, etc.) that tend to clog the filter media when they are entrapped thereby, which necessitates cleaning the media earlier than might otherwise be desired. Each time such a filter is cleaned, however, the bio-activity that is taking place within the media is placed at risk. However, if a proper sedimentation environment were present within the filter, i.e., if the flow of water therethrough were slowed to the point where these sorts of heavier waste particles were allowed to settle to the bottom of the filter before the water reached the filtering media, the filtering media would need to be cleaned less often.
By way of general background, the disclosures contained within U.S. Pat. Nos. 6,461,501 and 6,979,401 are suggested reading and are incorporated herein by reference as if fully set out at this point.
Heretofore, as is well known in the ornamental ponds arts, there has been a need for an invention to address and solve the above-described problems. Accordingly, it should now be recognized, as was recognized by the present inventor, that there exists, and has existed for some time, a very real need for a device that would address and solve the above-described problems.
Before proceeding to a description of the present invention, however, it should be noted and remembered that the description of the invention which follows, together with the accompanying drawings, should not be construed as limiting the invention to the examples (or preferred embodiments) shown and described. This is so because those skilled in the art to which the invention pertains will be able to devise other forms of this invention within the ambit of the appended claims.
According to a first aspect of the instant invention, there is provided herein a new sedimentation chamber which will preferably be used in conjunction with a skimmer/filter combination of the sort traditionally utilized in ornamental ponds. In a preferred embodiment, the instant vortex solids separator utilizes directed fluid flow to create a peripheral water circulation within a generally cylindrical body. At the lower terminus of the vortex filter, the base will preferably increase in diameter, thereby creating a zone of relatively immobile water. As water enters this zone, any solids suspended therein will tend to fall to the bottom of the separator. Then, the water which has been relieved of much of its solid contaminants will then tend to make its way up through the center of the separator where it will preferably pass through a mat-type filter before being discharged either back into the pool or into another water treatment component.
According to a second aspect of the instant invention, there is provided herein an aerator for use with an ornamental pond or the like. In a preferred embodiment, water will be brought into an accumulating structure such as a filter via the instant aerator. In the preferred embodiment, the instant invention aerates the water, preferably through the use of gravity, by allowing it to fall through a rectangular aperture into a cylindrical pipe that continues vertically downward for some distance into a water reservoir before curving into a horizontal orientation. The horizontal component of the instant aerator is preferably equipped with a series of holes that allow water and oxygen to escape into the water reservoir. Preferably the water reservoir that is to be aerated will be a filter of some sort.
Finally, in still another preferred embodiment there is provided a diffuser which is designed to provide a smooth flow of fluid into a structure such as a waterfall. Preferably, the diffuser will contain a plurality of horizontally spaced apart vertical dividers, some of which extend upwardly into the interior of the diffuser from its floor and others of which extend downwardly from its cover, the net effect being to force water flowing therethrough to move in a non-linear fashion, thereby slowing its progress through the diffuser and resulting in a more uniform distribution of water that originates as a point source.
The foregoing has outlined in broad terms the more important features of the invention disclosed herein so that the detailed description that follows may be more clearly understood, and so that the contribution of the instant inventor to the art may be better appreciated. The instant invention is not to be limited in its application to the details of the construction and to the arrangements of the components set forth in the following description or illustrated in the drawings. Rather, the invention is capable of other embodiments and of being practiced and carried out in various other ways not specifically enumerated herein. Additionally, the disclosure that follows is intended to apply to all alternatives, modifications and equivalents as may be included within the spirit and scope of the invention as defined by the appended claims. Further, it should be understood that the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting, unless the specification specifically so limits the invention. Further objects, features, and advantages of the present invention will be apparent upon examining the accompanying drawings and upon reading the following description of the preferred embodiments.
Other objects and advantages of the invention will become apparent upon reading the following detailed description and upon reference to the drawings in which:
a and 15B contain some preferred down pipe cross sections.
Turning first to
In the embodiment of
At the lower terminus of the body 130 is a water reservoir (base 140) which preferably has an increased size (e.g., a larger circumference or, more generally, a larger perimeter) as compared with the upper portion of the filter. A principal reason for the use of this sort of structure is that when the circulating water enters the larger base 140, it will tend to decrease in velocity, thereby creating a zone of relatively snow-moving or motionless water. As water enters this zone within the base 140, solids that are suspended therein will tend to fall to the bottom of the vortex separator 100. Note that, although in the preferred embodiment the base 140 is round in cross section, that is not essential and other cross sectional shapes (e.g., square, octagonal, rectangular, etc.) could certainly be used in the alternative. However, the preferred embodiment of the base 140 is illustrated in
Then, the water which has been relieved of much of its solid contaminants will tend to make its way up through the center of the separator 100 where it will preferably pass through a mat-type filter 150 and into an upper reservoir 155 before being discharged (e.g., either back into the pool or into another water treatment component such as filter box 110) via snout 170.
In one preferred embodiment, the base 140 of the vortex separator 100 will be equipped with multiple internal grooves 410 that are designed to channel debris toward an outlet 160 that can be used to back flush the system 100 for purposes of removing sediments deposited at its bottom. In other preferred embodiments, the debris collection surface 1310 will be smoothly tapering and preferably in the shape of a cone (see
In one preferred variation of the instant invention, the snout 170 will be modified by placing one or more UV lights 210 therein (see, modified snout 220,
Turning next to
Preferably, on the downhill end of the water receptacle 660 will be a plurality of rectangular apertures/water ducts 620 that drain the receptacle 660 and allow the water to fall into a cylindrical (or other shaped) downwardly extending pipe (down pipe 625) that continues vertically downward for some distance beneath the surface of the water in an adjacent water reservoir (e.g., filter 180,
The distribution line 650 of the instant aerator 610 is preferably equipped with a series of holes 630 that allow air and water to escape into the water reservoir. See
Preferably the water reservoir 180 that is aerated will be a filter that contains biological filter media 190 of some sort. In many instances, a snout 670 will be provided to create an artificial waterfall that returns water back into the ornamental pond from which it originated.
In operation, water that enters the down pipe 625 of the instant aeration system 610 via the ducts 620 will bring along with it at least some air bubbles that were captured as the water fell into the down pipe 625. Note, of course, that although in the preferred embodiment the pipe 625 will be a conventional cylindrically shaped water passageway, it need not be in that shape and could have, for example, a square or other cross sectional shape. To this end, the inventor has determined that the presently preferred design of the duct 620 is a rectangle or other shape which has relatively abrupt changes in direction along its perimeter (e.g., at each vertex). See, for example, the embodiment of
That being said, an essential feature of the instant invention is that the water that is leaving through the ducts 620 must fall some distance (e.g., a few inches) into the reservoir below in order to capture air therein and to provide a mechanism for forcing that air downward into the receiving body of water.
Water that falls into the downwardly extending pipe 625 will carry oxygen with it in the form of bubbles and additional dissolved oxygen suspended therein. The water then is carried by momentum and gravity through the downwardly extending pipe 625 and into the horizontal pipe 650. Excess oxygen that has been forced downward through the pipe 625 will then typically be released in the form of bubbles that rise up into the reservoir (e.g., water-filled filter 180) preferably through holes 630 which have been provided along the length of horizontal pipe 650. Of course, water will also exit via these same holes. Preferably, the bubbles will percolate upward from the horizontal pipe 650 through filter media 190, thereby encouraging aerobic bacteria colonization.
Finally, in still another preferred embodiment there is provided a diffuser 900 which is designed to provide a smooth flow of fluid into a structure such as the aerator (e.g.,
Note that it is preferred that the upper 920 and lower 910/915 barriers should be alternating and offset relative to each other so as to create a tortuous flow path 950 through the device 900. Additionally, it is preferred that the upper barriers 920 should extend downward past the level of water in the diffuser 900, else they will not modify the flow path. In practice, in the preferred embodiment the upper barriers 920 should extend downward to a distance from the floor not substantially less than the height of the lower barriers 910/915. See, for example, the arrangement of
In practice, water will enter diffuser 900 via water input orifice 940. The water will initially collect against first barrier 915 and rise until it overflows, at which time the water will then begin to collect against second divider 910. Eventually, water will spill over the top of second barrier 910 and, if there are no further barriers, flow out of the system. If the volume of water is sufficiently high, the level of water within the diffuser 900 will encounter ceiling barriers 920. As is generally indicated in
In a preferred embodiment the upper 920 and lower 910 barriers will be at least roughly parallel to each other and both will be oriented at least approximately parallel to the diffuser opening 970. One reason for aligning the barriers in this manner is that this orientation tends to produce smoother outflow stream than would otherwise be obtained. Note that, especially in the case of the upper barriers 920, this sort of parallel orientation is not strictly required. However, the instant inventor has determined that this arrangement typically produces the smoothest outflow water stream.
One preferred application for which the instant diffuser 900 is particularly well suited is for use in conjunction with a waterfall feature of the sort that is often found in ornamental ponds. As is generally illustrated in
Another preferred application for the instant diffuser 900 is when it is used in conjunction with aerator 610 (e.g.,
There has been provided herein an improved system for filtering and aerating water that is held within ornamental pools and the like. Of course, the instant inventor has contemplated many variations of the particular embodiments discussed herein, which would be within the scope of the claims that follow.
It should be noted that the term “filtering” as used herein should also be broadly construed to include the removal of debris of any size from the water, including very large (e.g., leaves) as well as very small (e.g., dust and dirt) particles from the water.
While the inventive device has been described and illustrated herein by reference to certain preferred embodiments in relation to the drawings attached hereto, various changes and further modifications, apart from those shown or suggested herein, may be made therein by those skilled in the art, without departing from the spirit of the inventive concept, the scope of which is to be determined by the following claims.
Number | Date | Country | |
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60893490 | Mar 2007 | US |