Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 8132534 | Overflow device for water tank An aquarium overflow device is capable of preventing inadvertent supply of water in an aquarium from being supplied to an outside during, e.g., power failure. An aquarium overflow device is for supplying the water in an aquarium to an external device outside the aqu... | 03/13/2012 |
| 8132533 | Overflow device for water tank An aquarium overflow device capable of preventing adverse effects by suction noise of an overflow pipe. The aquarium overflow device according to the present invention is equipped with a water storing portion 52 for storing water W in an aquarium, an overflow... | 03/13/2012 |
| 8006646 | Self cleaning aquarium system An aquarium system for containing water and aquatic life therein is disclosed that includes a reservoir and an aquarium that is mounted generally above the reservoir. The aquarium has an outlet in liquid communication with the reservoir through an outlet conduit tha... | 08/30/2011 |
| 7832358 | Filter device for aquarium An aquarium includes a filter housing disposed in a container, the housing includes a number of spaced guide fins extended into the housing and arranged to form a peripheral passage around the guide fins, a filter member engaged in the guide fins, and a water pump a... | 11/16/2010 |
| 7591233 | Device for dispensing carbon and/or carbon dioxide, particularly for aquariums A device for dispensing CO2, that is to say carbon or carbon dioxide, which can be fitted in aquariums or containers for holding live fish, comprising a dispenser casing (11) or body, equipped with a mixing chamber (15) into which a flow of ... | 09/22/2009 |
| 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 that during the filtration process the water follows ... | 08/25/2009 |
| 7553411 | Filter cartridge A filter cartridge including a filtering body. The filtering body having a non-horizontal or rounded bottom edge that aids in draining water from the filter cartridge during filter maintenance. ... | 06/30/2009 |
| 7430989 | Aquarium having improved filtration system with neutral buoyancy substrate and sediment removal system An aquarium which includes a tank having a pump and an under gravel filter disposed in the tank below the pump and a sediment removal system for collecting and removing sediment which passes through the under gravel filter. The under gravel filter includes a hollow ... | 10/07/2008 |
| 7429321 | Aquarium filter cartridge and filtration system An aquarium filter cartridge including activated carbon or the like and a housing wherein the water traces an S-shaped path is disclosed. In the S-shaped path the water flows horizontally through a floss type filter, downward to the bottom of the housing, horizontal... | 09/30/2008 |
| 7416659 | Filter apparatus with fluid bypass A filter arrangement for filtration of a primary fluid, the filter arrangement having a filtration region and a bypass region. The bypass region is a sealed region containing a secondary fluid having a specific gravity different than a specific gravity of the primar... | 08/26/2008 |
| 7381326 | Mega flow system An aerated recirculated aquaculture system including a culture tank and an aeration and circulation system. The culture tank houses live aquaculture. The culture tank defines a first flow path. The aeration and circulation system includes an aeration device configur... | 06/03/2008 |
| 7363878 | Waste extraction system A waste extraction system (10) for an aquaculture tank (12) includes a first conduit (18) having a first end (20) and a distant second end, with a second conduit (22) disposed within the conduit (18). The second conduit (... | 04/29/2008 |
| 7363877 | Method of emptying a container, and use of the method A method of emptying a large container of e.g. 12000 litres for the storage of fish, such as shellfish, e.g. shrimps, said container being emptied through a pipe in the container, air being supplied simultaneously with the emptying. The air is expediently supplied t... | 04/29/2008 |
| 7360502 | Sand sifting/cleaning device for an aquarium An accessory for a cleaning apparatus for an aquarium having a granular substance covering a bottom surface of the aquarium including a rigid handle having a handle distal end and a handle proximal end wherein the handle is hollow such that fluid can freely flow the... | 04/22/2008 |
| 7348753 | Fan motor A fan motor includes: a single-phase stepping motor including a stator excited by applying an electric current to a coil to function as a single-phase magnetic pole, and a rotor which has a permanent magnet magnetized to a single phase and rotates as the magnetic po... | 03/25/2008 |
| 7341022 | Waterfall aquarium A waterfall aquarium including an enclosed transparent water tank having an interior and exterior. A water exit conduit communicates the interior of the water tank with the exterior thereof. The water exit conduit includes a hollow tubular body having an exit end an... | 03/11/2008 |
| 7335297 | Power aquarium cleaning/gravel vacuum A gravel vacuum, including a pump, a detachable suction base connected to the pump to which a suction tube can be attached, a filter connected to the suction base, a return assembly, at least one valve, and an alternate flow path. The pump impels a flow of water fro... | 02/26/2008 |
| 7316775 | Air-powered filter arrangement A filter including a filter housing having a spillway and a pneumatic intake assembly that draws water from an aquarium into the filter housing. The filter housing being configured to internally mount to the aquarium. The filter housing having first and second chamb... | 01/08/2008 |
| 7311822 | Aquarium The present invention provides a compact design and provides an improved viewable area. In an exemplary embodiment, the present invention comprises a container having a height, a depth and a width. The container comprises a main cavity, a lower cavity, at least one ... | 12/25/2007 |
| 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 safety switch, as well as the other components shown in the drawings, wh... | 12/04/2007 |
| 7294257 | Water filter A filter unit for filtering particulates and other foreign matter from a water supply, comprising a filtering chamber. At least a portion of an exterior of the filtering chamber being provided with filtering chamber in use. The mesh being sized to filter particulate... | 11/13/2007 |
| 7288189 | Multi-faceted intake filter for an aquarium A multi-faceted intake filter for an aquarium includes a top surface portion, a bottom surface portion and a plurality of side surface portions that collectively define a filter body is formed from a compressible foam. The intake filter also includes a bore that ext... | 10/30/2007 |
| 7276169 | Method for filtering water in an aquarium, a water cultivation tank and similar water bonds, and corresponding filtering system A method for filtering the water of an aquarium, a water cultivation tank or similar water bonds, by means of a filtering system comprising a closed vessel and defining a chamber, a filtering body housed in the chamber, a circulation pump having a suction duct, comm... | 10/02/2007 |
| 7273547 | External type filtration device The present invention relates to a filtering apparatus including a filter device externally hitched on a wall surface of an aquarium. A water pump pumps water stored in the aquarium into the filter device. The filter device is formed so that the water pumped from th... | 09/25/2007 |
| 7252762 | Filter housing arrangement with cartridge guides An aquarium filter arrangement including a filter housing and a filter cartridge positionable within a filter chamber of the filter housing. The filter arrangement includes a hinged cover connected to the filter housing. The hinged cover is designed to collect conde... | 08/07/2007 |
| 7241379 | Filter housing arrangement An aquarium filter arrangement including a filter housing and a filter cartridge positionable within a filter chamber of the filter housing. The filter arrangement includes a hinged cover connected to the filter housing. The hinged cover is designed to collect conde... | 07/10/2007 |
| 7208084 | 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 cartridges are designed such that they provide a unique internal helical ge... | 04/24/2007 |
| 7172692 | Filtering device A multifunctional filtering device for an aquarium mainly includes a filter box for being suspended at an aquarium. The filter box includes a pump motor for producing mixture of water and air and a vortex flow generator disposed at the center of the inner side of th... | 02/06/2007 |
| 7162831 | Fish bait system A fish bait system includes a fish compartment and a filter compartment for maintaining bait fish in a healthy condition for prolonged periods prior to use. The fish bait system allows water to be pumped from the fish compartment through a filter having a standard n... | 01/16/2007 |
| 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 having a large pore size for trapping coarse particles of filth. The inner... | 09/26/2006 |
| 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 and a downstream anaerobic denitrification unit, wherein both units hav... | 08/01/2006 |
| 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. ... | 06/13/2006 |
| 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 communicating with the main chamber for removing solids from the main cham... | 04/18/2006 |
| 7024814 | Fish or fish bait life preservation apparatus and method A novel system, apparatus and method of operation for use in watercraft, terrestrially bound motor vehicles and fixed based land applications where water from a live well or bait tank is withdrawn, filtered, climactically controlled and conveyed through a water cond... | 04/11/2006 |
| 7022227 | Multifunctional filtering device for an aquarium A multifunctional filtering device for an aquarium mainly includes a filter box for being suspended at an aquarium. The filter box includes a pump motor for producing mixture of water and air and a vortex flow generator disposed at the center of the inner side of th... | 04/04/2006 |
| 7011748 | Water aerating and dirt collecting assembly for aquarium A water aerating device for an aquarium includes a housing having a chamber to receive a guide device which is arranged between an inlet and an outlet of the housing, a paddle wheel is rotatably attached onto the guide device, and a pumping device may be used to pum... | 03/14/2006 |
| 7001509 | Aquarium filter having self-priming arrangement An external aquarium filter comprises a flow resistive, porous member disposed between a partition wall and the filter housing. Responsive to stopping the pump, water in the intake chamber begins to reversely flow out of the intake chamber into the aquarium tank thr... | 02/21/2006 |
| 6962019 | Enhanced filtration and water conditioning system for a bait tank An enhanced filtration and water conditioning system for a novel bait tank suitable for use in recreational boats, dockside and land based personal and commercial applications wherein water from the tank may be climactically controlled, filtered, purged of sediment,... | 11/08/2005 |
| 6896799 | Fish aquarium An aquarium system comprising a water-tight fish tank and a screening means that divides the fish tank into an upper section and a lower section, one or more barriers that divide the lower section into two or more separate compartments, and two or more outlet orific... | 05/24/2005 |
| 6878267 | Fish tank vacuum A fish tank vacuum, for use with a fish tank having a fish tank interior and an intake pipe, for removing debris from the fish tank interior with a suction nozzle. An attachment assembly connects to the intake pipe for establishing water flow into the suction nozzle... | 04/12/2005 |
