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7335298 Modular aquarium filter  
A modular aquarium filter includes one or more cartridges connected in series. The cartridges may contain filter media for chemical, biological and/or mechanical filtration. In addition, the...
7311819 Aquarium filter  
The present invention is an aquarium filter that treats water mechanically, chemically and biologically, provides maximum and uniform circulation and aeration of water, prevents channeling, reduces...
7303665 Aquarium drainage and waste detection system  
An aquarium drainage system having a filter, funnel, clear tube, sensor housing, light sensor, light beam generator, waste indicator light, primary valve, secondary/safety valve, safety cap and...
7244356 Autotrofic sulfur denitration chamber and calcium reactor  
The disclosure is directed to systems and methods for conditioning water in an environment for holding aquatic life. The systems include various chambers for processing water, such as a chamber...
7112275 Water tank filter and purifier  
A water tank filter having a double structure including an inner filter having a small pore size for trapping fine particles of filth from tank water and situated within a hollow outer filter...
7060181 Dual density filter cartridge  
The invention relates to aquarium filters providing improved water filtration without accelerated clogging. The present invention also relates to methods of using such filters.
6902666 Aquarium filter  
A aquarium filter for filtering water being introduced into an aquarium. The aquarium filter includes a body member comprising a perimeter wall. The perimeter wall defines a bore extending through...
6808624 Replaceable media filtration  
An improved method for using replaceable filtration media in a rotatable drum. A plurality of media cartridges are installed on the rotatable drum. As the drum rotates, the media cartridges are...
6432312 Closed system for rearing aquatic life  
The present invention provides improvements for indoor closed systems used to raise aquatic life, along with methods to overcome the current problems associated with such indoor closed systems. The...
6238556 Filtration system including a back washable pre-filtration apparatus  
A filtration system for filtering particulate matter from a liquid, the filtration system comprises a pre-filtration apparatus and a main filtration apparatus. The pre-filtration apparatus...
6187194 Packaged aeration and filtration system  
An aeration and filtration system for eliminating waste products in a fluid body having a surface floor is disclosed. The aeration and filtration system includes a support bed disposed above the...
6106709 Filtering device for aquariums  
A filtering device for aquariums, of the type to be hung on the outside of an aquarium, having a casing housing at least one filtering mass, an electric pump for drawing water from the aquarium...
6015497 Filtration system and method for removing biological wastes from aquaculture tanks  
A bio-treatment system for removing biological wastes from man-made tanks used to commercially cultivate aquatic animals. The system includes an aqua-culture tank in combination with a filtration...
5965016 Fluidized bed aquarium filtration system  
An aquarium filter for removing chemical and physical waste from an aquarium. The filter can include a mechanical filter portion, followed by a fluidized bed of particles, such as sand, for...
5932092 Filtering apparatus having positively buoyant and negatively buoyant particulate  
An apparatus for filtering contaminated fluids is provided. In a filtering mode, contaminated fluid is introduced into a vessel housing a bed of positively buoyant particulate material and a bed of...
5879567 Method of purifying aquarium water using a pressurized, tank mounted, fluidized bed filter  
A fluidized bed filter is described and claimed. The filter is exemplified for use in an aquaculture system under hydraulic pressure. A preferred embodiment of the filter of the subject invention...
5693220 Aquarium filtration system for semi-aquatic animals  
An aquarium filtration system for semi-aquatic animals, such as turtles, frogs and the like, which provides for collection and removal of waste material or debris generated within the aquarium...
5632887 Fluidized bed aquarium filter  
An aquarium filter for removing chemical and physical waste from an aquarium. The filter includes a fluidized bed of particles, such as sand, for removing ammonia from the water. The filter can...
5618419 Filter cartridge with back structure defining a weir  
A filter cartridge for use with liquids or gases which includes a back structure having a plurality of pockets formed in it and filtration granules contained within the channels. Each of the...
5582719 Filtration system  
A filtration system comprising a housing whose overall surface, excepting a bottom surface and an upper surface, is tightly closed, a filter medium disposed within the housing, an air jetting...
5571409 Aquarium waterfall assembly  
This invention is directed to an aquarium waterfall assembly which may be placed on top of a single aquarium tank and used to move water from the tank, over a decorative waterfall and back to the...
5567315 Lifting-lowering type aquarium filter  
A filter for aquarium operating in accordance with the lifting-lowering principle comprises a housing with at least one filter compartment for a filter material, a pump which aspirates water after...
5322622 Filtering device for an aquarium tank  
An improved filtering device for an aquarium tank, particularly a filtering device in which a plurality of "U" notches are formed at equal distance in the rim of the cup, the arc section formed by...
5294335 Filter device for aquarium tanks or artificial ponds  
An improved filtering device for aquarium tanks and artificial ponds mainly comprises a water injector which is made up of a top cover plate and a water injector base, a multi-layered filtering...
5282962 Protein skimmer and power head thereof  
A protein skimmer for clearing the impurities in an aquarium, comprising a skimmer body, an impurities collector, a top cover, a power head, an intermediate partition plate, a side partition plate,...
5266190 Filter apparatus for use with a water tank  
A filter apparatus comprises a housing 11 accommodating therein a filter unit 19, which unit consists of: a filtering chamber 47 made of a plastics and having an integral flexible pipe 50; and...
5236582 Filter device for an aquatic tank  
A filter device for an aquatic tank includes a filter unit having a first casing. The first casing has a top open end, a bottom closed end formed with openings, a surrounding side wall...
5205237 Method and apparatus for growing fish in a recirculating tank  
Method and apparatus for providing an enhanced environment for supporting aquatic life includes an open container containing a body of water and an oxygen collecting canopy overlying a portion of...
5182018 Protein absorbing aquarium filter element and method  
A filter for absorbing proteins in an aqueous solution which is circulated and constrained to flow through the filter includes numerous absorbent units formed of a polymeric material for absorbing...
5172650 Aquarium having an internal three chamber recirculating filtration system  
An aquarium for keeping live water animals and water plants is disclosed which includes a housing and a filter tank fastened inside the housing at one side thereof. The filter tank includes a dirty...
5124044 Phosphate removal from aquaria using immobilized ferric hydroxide  
Immobilized ferric hydroxide selectively removes phosphate from aquarium water. The material provides a healthier environment and retards growth of undesirable algae and bacteria.
5100543 Water purification system for use in a live bait tank  
A system is used to remove the solid waste and gases excreted by a fish after being caught and deposited in water supported by a container and has a body. A filtering apparatus that removes the...
5098585 Aquarium filter assembly  
An aquarium filter assembly which can be utilized as a diatomaceous earth filter which is self-priming. The filter includes a housing having a pump means from which depends a filtering element. The...
5087357 Aquarium filter apparatus  
An apparatus is set forth permitting unitary replacement of the filtration components contained therewithin, wherein an elongate cylindrical housing includes a lowermost filtration polymeric...
5059315 Aquarium water aeration and filtering system  
A compact device for filtering and aerating aquarium water to sustain diverse aquatic species which comprises a suction pump and a non-submerged column of different filtering layers and in which...
5026477 Water purifying combination and ultraviolet lamp therefor  
A water purifying device which includes a plurality of barrels connected one after another by means of thread engagements into an elongated tube having an inlet end and an outlet end. A number of...
5019254 Filter pad with pocket and method of using the same  
Filter pads useful for filtering and removing contaminants from fluids comprise at least two pad layers of a permeable, nonwoven polymer material, where one pad layer is connected to another pad...
5011600 Water filtration system for aquariums  
A water filtration system includes an auxiliary filter assembly having a single inlet connected to the water lift tube of an undergravel filter and an outlet connected to a submersible electric...
4895646 External aquarium filter  
An external aquarium filter of the canister type formed of a flat, substantially cylindrical container with a screw-top cover. Both inlet and outlet ports extend through the cover. The inlet port...
4610784 Method and apparatus for cleaning and filling an aquarium  
A method and apparatus for use in cleaning and refilling an aquarium tank and including an elongated flexible hose, a gravel tube including an upper end connected to one end of the flexible hose,...
4483769 Filter cartridge  
A filter cartridge for use with liquids or gases which includes a back structure having a plurality of channels formed in it and filtration granules contained within the channels. Each of the...
4295965 Multi-filter chamber aquarium filter  
An underwater filter for aquaria has a base portion (1) on which several similarly constructed filter cassettes (6) are located above each other. The filter cassettes (6) are made to be essentially...
4285813 Aquarium filtration apparatus  
Aquarium filtration apparatus having a generally trough-shaped filter housing, the rear wall having a bracket portion for hanging on an aquarium, an impeller assembly having a drive magnet being...
4272372 Global aquarium with aerator and purifier  
An aquarium for fish and other forms of marine life is constructed in the form of a globe symbolic of the planet earth and equipped with a special device for aerating and purifying the water. The...
4265751 External biological aquarium filter  
An external aquarium filter is disclosed, the filter including a filter receptacle having a filter chamber for receiving contaminated aquarium water and having a clean water chamber. The two...
4156401 Sealed self-cleaning aquarium apparatus  
A sealed liquid filled tank is carried above a liquid containing reservoir. A pump in the reservoir forces liquid upwardly through an interconnecting conduit into the tank. An overflow pipe in the...
4039453 Aquarium filter tank pump with bypass  
An aquarium filter tank pump has a housing with a large upper portion and a small lower portion joined by a transition. A motor driven impeller generally conforming to the inside of the housing...
3994811 Protein skimmer and carbon filtration replaceable unit  
A replaceable protein skimmer and carbon filtration unit is disclosed for use with a vertical lift aquarium filtration system. The normal flow path through the vertical lift to returning the...
3983843 Aquarium water treatment apparatus  
An apparatus for treating aquarium water to thereby reduce the amount of water contaminants and microorganisms harmful to the aquarium fauna. A unitary water treatment device is situated in a...
3795225 ENCLOSED FISHBOWL  
An ornamental fish bowl closed on all sides and including a water pump with an aspirator for circulating the water and adding small air bubbles to it. The water is directed through an aspirator and...
Matches 1 - 50 out of 74 1 2 >