Aquarium filter water return chamber

An improved water return system for water reservoirs such as aquariums and ponds that provides a return of filtered water through a series of holes rather than a curved weir or spillway. The use of the holes provides for high oxygenation of the water prior to its return to the water reservoir to the benefit of life in the water reservoir. Further, the use of the holes provides reduced noise upon the return of the water because of the surface tensions attracting adjacent streams to each other. Also, placement of the holes provides a damming effect for the filter media that can become a site for the cultivation of beneficial bacteria that are necessary to remove ammonia and nitrites from the water by positioning the media mostly out of water, thereby allowing necessary oxygen to be freely available to grow bacteria.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The field of this invention relates generally to the field of aquarium filters and more specifically to an improved design that provides for a unique, beneficial system for the return of the filtered water to a body of water, such as an aquarium or a pond.

2. Description of the Prior Art

Water reservoirs of all types, such as aquariums and ponds, are kept by hobbyists and others who wish to incorporate the beauty, serenity and tranquility of marine life into their surroundings. In order to accomplish this, conditions in the water reservoir must be optimized to allow for the flourishing of life therein. Accordingly, the water must be filtered. The filtration of the water seeks to improve the environment and appearance of the water therein as well as to promote the healthy needs of fish, animals, plants and invertebrates housed therein.

Typically, and most simply, water is removed from the reservoir using a pump. The water travels through a variety of filters: a mechanical filter to remove solid waste, a biological filter to maintain optimal bacterial levels and a chemical filter to remove harmful chemicals that are the byproducts of the system and/or found originally in the water. Once the water is removed from the reservoir and passed through each filter media, it is then typically returned to the reservoir over a weir or spillway, which is exposed to ambient oxygen, as it forms a planar stream of water.

The return of water through such a weir or spillway has some drawbacks. First, the planar flow of the water returning from the filter has minimal surface exposure to oxygen. Submerged plants and animals require as much oxygen as possible be dissolved into the water reservoir. It is advantageous, therefore, to provide a means for returning the filtered water to the reservoir in a manner that maximizes surface area exposure to ambient oxygen for the benefit of all life found therein.

Secondly, the flow of water over a weir or spillway can become noisy once the level of water reservoir falls below the level of the weir. It is therefore advantageous to provide a means of returning filtered water to the water reservoir in such a way as to reduce, minimize and/or eliminate the noise associated with the return of water found in a conventional weir.

It is the object of the instant invention to overcome the shortcomings of the prior art and provide a return system of filtered water to a water reservoir that provides for maximum oxygen exposure of the water, reduces the noise of returning water and that provides an aesthetically pleasing look as the water returns to the reservoir.

SUMMARY OF THE INVENTION

The basic embodiment of the present invention teaches an improved filter for water removed from a reservoir containing life such as fish, animals, invertebrates and plants comprising an outer casing, the outer casing have a base, two sidewalls, a front wall, a back wall and an open top; a pump located inside of the outer casing; filter media located inside of the outer casing; an inlet through which the power of the pump removes water from the reservoir for passage through the filter media inside of the outer casing; and a row of a plurality of apertures, each of the plurality of apertures being substantially congruent in size, located on the front wall.

The above embodiment can be further modified by defining that the filter media is permanently affixed to the outer casing.

The above embodiment can be further modified by defining that the filter media includes one or more media taken from the group comprising chemical media, biological media, mechanical media and ammonia adsorbing media.

The above embodiment can be further modified by defining that the filter further comprises at least one more plurality of apertures, each of the additional plurality of apertures being substantially congruent in size located parallel to the first row of plurality of apertures in an orientation such that the additional plurality of apertures are placed in a staggered position relative to the first plurality of apertures.

The above embodiment can be further modified by defining that the plurality of apertures are aligned substantially vertically.

The above embodiment can be further modified by defining that the plurality of apertures are aligned substantially horizontally.

DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT

Turning to the drawings, the preferred embodiment is illustrated and described by reference characters that denote similar elements throughout the several views of the instant invention.

The preferred embodiment shows an aquarium filter10with an outer casing11having a front wall18, back wall (not shown), a left side13and a right side (not shown). There is a bottom (not shown) and an open top14. Included inside the casing11are filter media components that are considered conventional.

Inside the casing11there is found a pump, a mechanical filter, a chemical filter and a biological filter. On the outside of the casing11is attached an intake tube16. Water is taken up through the intake tube16through a tip17that is preferably slotted to prevent large items from clogging the tube16. The pump pulls water through the tip17and up the intake tube16and into the interior of the casing11. The water travels through a variety of media types before being returned to the water reservoir. These media can include chemical media, biological media, mechanical media and ammonia adsorption media.

On the front18of the casing11located near the top is a plurality of holes19through which the filtered water returns to the water reservoir.

As can be seen inFIG. 2, a prior art system20includes a weir or spillway12that returns a long stream21of water that has exposure to oxygen at the surface points of the water stream. InFIG. 3, the difference between the prior art20return of water and the instant invention is illustrated. The water returns to the reservoir through the plurality of holes19creating a plurality of streams22. Through the creation of these multiple streams of water, the surface area of the water being returned is increased. By dividing the water into small streams, the irritating splash noise created by a larger stream is significantly reduced.

InFIG. 4, an alternate embodiment23shows one row of plurality of holes24, which is contrast toFIG. 1, which shows the preferred embodiment having more than one row. On the larger filters shown inFIG. 1, the holes are arranged in multiple rows such that the surface tension causes the flows to intermingle and create a visually pleasing and agitated surface for the same purpose, as seen inFIG. 3.

The embodiment23inFIG. 4has an outer casing28including an open top25, a front wall26, a left sidewall (not shown) and a right sidewall27. In this embodiment the water intake29is a series of apertures rather than the tube found inFIG. 1. Also see in this figure is the hook30attached to the top25of the outer casing28that allows for easy attachment of the filter to an aquarium.

The discussion included in this patent is intended to serve as a basic description. The reader should be aware that the specific discussion may not explicitly describe all embodiments possible and alternatives are implicit. Also, this discussion may not fully explain the generic nature of the invention and may not explicitly show how each feature or element can actually be representative or equivalent elements. Again, these are implicitly included in this disclosure. Where the invention is described in device-oriented terminology, each element of the device implicitly performs a function. It should also be understood that a variety of changes may be made without departing from the essence of the invention. Such changes are also implicitly included in the description. These changes still fall within the scope of this invention.