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7618534 Aquarium filter  
An aquarium filter assembly is mounted to an aquarium tank and defines a water flow path therethrough from upstream to downstream from an inlet to an outlet. A replaceable filter element is mounted...
7604734 Water filtration system  
A filtration system for an aquarium is provided. The filtration system includes a gate chamber with a gate conduit positioned therein that transports unprocessed water from the aquarium. The gate...
7601259 Aquarium filter  
An aquarium filter assembly is mounted to an aquarium tank and defines a water flow path therethrough from upstream to downstream from an inlet to an outlet. A replaceable filter element is mounted...
7601258 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...
7578933 Biological filter for aquatic ecosystems  
This invention provides a filtration system for home aquaria that uses a closed-circuit pathway having a surface that contacts a flow of water moving between a tank inlet and tank outlet. The...
7578262 Filtration apparatus for aquaria  
A filtration device ( 10 ) for aquarium tanks comprises a body ( 11 ), divided using special baffles ( 12 ) into a set number of intercommunicating chambers (I, II, III etc . . . ) can be housed so...
7569139 Aquarium filter assembly and filter element  
An aquarium filter assembly includes a housing having a filter cartridge and a water pump and defining a flow path therethrough from upstream to downstream from an inlet to an outlet. A replaceable...
7527730 Water filtration system and its use  
The present invention relates to a filtration system for purifying water, in particular aquaculture water. Furthermore, the invention relates to a method of purifying water wherein water is...
7491323 Water distributor device for aquariums, ponds and the like provided with a possible biological filter  
In a water distributor device for aquariums, ponds and the like, comprising a main body ( 30 ) wherein an impeller ( 70 ) is inserted, the impeller ( 70 ) is rotated by entering water and is...
7488417 Aquarium filter assembly  
An aquarium filter assembly includes a filter assembly body, a water supply section and a filtered water section, the aquarium filter assembly being adapted for liquid connection with an aquarium,...
7462284 Dissimilatory sulfate reduction as a process to promote denitrification in marine recirculating aquaculture systems  
The present invention relates to a novel approach for nitrate removal from a marine recirculating system ( 10 ) wherein high concentrations of sulfate found in seawater is used in combination with...
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...
7316776 Aquarium filtration system with bio-reactor  
An improved aquarium filtration system is provided which includes a bio-reactor chamber. The bio-reactor chamber includes a plurality of bio-balls which have a high surface area for collecting...
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...
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...
7094336 Aquarium device with enhanced water filtration  
A desktop aquarium device with enhanced water filtration is provided. The aquarium device contains a base and a spherical tank. A filtering dish is installed inside the base. The filtering device...
7094335 Aquarium filtration system  
A filter system for use with an aquarium includes a housing having a pre-filter chamber, a biological chamber, and a sump. A protein skimmer receives water flowing from the pre-filter chamber and...
7082893 Aquaculture nitrogen waste removal  
The present invention relates to a two-stage biofilter reactor system for removing nitrogenous compounds from a recirculating aquaculture system. The system includes a aerobic nitrification unit...
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.
7033491 Aquarium filter  
An aquarium filter to increase dissolved oxygen and improve water quality comprised of a box containing a segregated water inlet tank, a water collection tank, and multiple filtration tanks; water...
7029577 Aquaculture system  
A self-contained aquaculture system comprising a modular building defining a first main chamber for containing fish or marine invertebrates, a second swirl chamber comprising a primary filter...
6966982 Aquaculture water quality ecology system  
An aquaculture water quality ecology system to improve water quality in an aquaculture pond by guiding water into a physical filtration tank at the top of the system, then flow into a sedimentation...
6939708 Method of rapid bio-cycling of an aquarium  
A method of rapid biochemical cycling of aquariums using naturally preserved granular marine substrate material, such as sand or aragonite, to rapidly denitrify the aquatic environment and to...
6858143 Apparatus for the biological purification of water containing organic materials and derived products thereof  
The present invention refers to an apparatus for the biological treatment of waters, either fresh or salt waters, in aquarium and in basins for aquaculture, comprised of at least one reactor tank,...
6843909 Three-stage aquarium filtration  
A filter unit for filtering aquarium water includes a packet having porous filter walls configured for mechanical filtration of aquarium water, a filter medium within the packet, between the filter...
6830681 Device and method for holding water for accommodating and growing aquatic organisms  
Device and method for keeping and growing aquatic organisms by optimizing the microbiological treatment of water. The device comprises a first chamber for holding oxygen-depleted water and a second...
6797163 Filtration devices  
The present invention relates to filter devices and methods of using such devices for mechanical, chemical and biological filtration pond and/or aquarium water.
6730226 Water purifying method and apparatus  
A method for purifying water including nitrification by aerobic bacteria and denitrification by anaerobic bacteria in an apparatus by providing an elongated, closed water channel.
6659043 Aquarium water circulation system  
A aquarium water circulation system for facilitating removal of water and cleaning of an aquarium. The aquarium water circulation system includes a support member having a base portion. The support...
6585888 Aquarium filter system with interchangeable filter cartridges  
An aquarium filter system comprising a pump, a manually positionable valve assembly, and one or a plurality of interchangeable filter cartridges. The filter cartridges are interchangeable and...
6450122 Decorative water display including a low maintenance aquatic animal basin  
The present invention is a decorative water display including a low maintenance aquatic animal basin capable of supporting aquatic animals such as fish by using a specially designed filter which...
6357392 Apparatus and method for raising fish and/or shellfish  
A stable apparatus and method for raising fish and/or shellfish. An aquarium ( 12 ) contains pearl oysters and breeding water. A decomposition treating bath ( 19 ) is supplied with water from the...
6283061 Terrarium filter plate  
A terrarium filtering device, apparatus, and method is disclosed which includes a base filtration plate, a barrier wall, and an environment separation cup. The present invention includes a...
6276302 Aquarium  
An aquarium comprises a container, a dividing plate and a filtration system. The container includes a main cavity for containing water and live underwater creatures, and a bottom cavity below the...
6210567 Filtration device for tank water for aquarium fish  
A filtration device for tank water for aquarium fish having several partitions dividing the casing into several filtration chambers. A removable filtration cartridge is inserted into each...
6117313 Method and apparatus for aquaculture and for water treatment related thereto  
An improved aquaculture system is provided which, in various embodiments, utilizes a single integrated unit to perform the biologic filtering, aeration and degassing functions; has a fish tank with...
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...
6086755 Floating hydroponic biofiltration device  
A floating hydroponic biofiltration device for use in a body of oxygenated water containing plant-eating fish, includes, in series, (a) a float and a terrestrial plant hydroponically mounted in a...
6080304 Clarifying device for use in an aquarium  
A clarifying device for use in an aquarium that includes a casing having at least one transparent portion. A plurality of clarifying pieces are confined in the casing. Each piece has a bulk density...
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...
5910248 Water filtration  
A method for purifying water comprising at least one member selected from the group consisting of organic and inorganic particles, involving supplying water to a collection surface forming above an...
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...
5866018 Vortex aquarium filter  
An aquarium filter is provided having a first annular chamber and an inlet or near the top of the chamber. The inlet is constructed and positioned to direct water into the chamber in a swirling...
5860393 Aquarium water flow control device  
An aquarium water flow control device for receiving a flow of aquarium water from an aquarium and for controlling a flow of aquarium water thereafter from said aquarium water flow control device is...
5858793 Sterile or specific pathogen free environment products  
Methods of maintaining or providing sterile or specific pathogen free environments are disclosed. The methods involve the use of semi-permeable membrane materials between the sterile or pathogen...
5807480 Filtration device in a tank having control unit to generate high and low tides in tank  
A filtration device for filtering and cleaning water to be supplied to a water tank comprises a main body having an upper end opening selectively closed by a lid mounted thereon in an installed...
5799612 Compact and efficient photosynthetic water filters  
A compact and energy efficient photosynthetic filter for purifying and conditioning aquarium water comprising a receptacle (108) for holding aquarium water, a growth element (202) having a growth...
5792368 Fluidized bed filter  
A fluidized bed filter is described and claimed. The filter is exemplified for use in an aquaculture system. A preferred embodiment of the filter of the subject invention comprises a cylinder...
5755961 Aquarium system  
An aquarium system includes an inlet reservoir, an aquarium tank defining a container for water in fluid communication with the inlet reservoir to receive water displaced from the inlet reservoir,...
Matches 1 - 50 out of 104 1 2 3 >