Quotables
"Radio has no future."
Lord Kelvin, British mathematician and physicist ; 1897
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 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 |
| 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 provides a winding pathway for water to flow through. Along the pathwa... | 08/22/2006 |
| 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terrestrially bound motor vehicles and fixed based land applications where water from a live well or bait tank is withdrawn, filtered, climactically controlled and conveyed through a water cond...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 |
| 6565330 | Heating and pumping device for liquids, in particular for water of aquariums A heating and pumping device for liquids, in particular for water of aquariums, the device comprising a pump (24) having a pump body (32) and a thermo-heating element (26) having a thermo-heating body (60). There is a casing (22) which contains both the p... | 05/20/2003 |
| 6061500 | Electronic heater for an aquarium An electronic heater structure includes a tube body, a heating wire disposed on the bottom of the interior of the tube body and a temperature controlling circuit. The temperature controlling circuit employs a thermosensitive resistor for detecting the tem... | 05/09/2000 |
| 5628281 | Aquarium filtering and heating system An energy efficient aquarium system with a separate cover wherein the lamp or lamps are located below the filters and filter ponds thus heating the filter pond bottom and sides to further heat the water contained in the filter ponds thus eliminating the n... | 05/13/1997 |
| 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 passing through the filter compartment through a suction c... | 10/22/1996 |
| 5514280 | Aquarium filter A filter system is provided for mounting on an aquarium tank to treat the water in the aquarium. The filter system comprises a plurality of filter chambers, each containing a different filter media. The filter chambers serve to filter particulate matter f... | 05/07/1996 |
| 5474673 | Top mounted biological filtration system for an aquarium A wet/dry filter system that is mounted on the top of an aquarium allows flexible flow control to and between the wet section and the dry section.... | 12/12/1995 |
| 5299424 | Aquarium heater and cooler A combination aquarium heater and cooler apparatus is provided which utilizes a feedback circuit to automatically maintain the fluid in an ecosystem at an operator set desired temperature. The feedback system scheme takes advantage of a thermo-electric he... | 04/05/1994 |
| 5097795 | Water purification system and apparatus A water purification system creates an integrated, small-scale marine or fresh water ecosystem that is particularly useful as a home, school, office, or laboratory aquarium. In operation, water from the aquarium tank is routed to an algal turf scrubber sc... | 03/24/1992 |
| 5081954 | Method of raising fish Water from a fish growth tank is pumped through multiple filter tanks containing a filter media and injected with ammonia fixing bacteria. Metabolic wastes from the fish growth tank are absorbed by hydroponic or sand growth beds. Oxygen content and temper... | 01/21/1992 |
| 5057667 | Aquarium heater An aquarium heating system utilizes a conductive coating on an aquarium glass viewing window to heat the aquarium water. The conductive coating is transparent and is disposed on the surface of at least one viewing window. A voltage is supplied to the cond... | 10/15/1991 |
| 5054424 | Aquarium ecosystem An ecosystem is created in an aquarium using a main tank and a filter tank. The main tank provides a suitable environment for aquatic animals and has a series of tubes along the bottom to distribute incoming water. An outlet near the high water mark of th... | 10/08/1991 |
| 4867102 | Thermoelectric aquarium cooling unit An aquarium cooling unit comprising a thermoelectric cooling device and a thermostat for regulating the temperature of an aquarium. In one embodiment the cooling unit is in conjunction with a heat pipe. In another embodiment the cooling unit is built into... | 09/19/1989 |
| 4807565 | Gravity filter system aquarium An aquarium system consist of an open topped fish tank, a base cabinet stand and an encased cover, wherein unclarified aquarium water is drawn downwards by gravity and filtered below the tank, while being aerated and heated as it is returned to the tank i... | 02/28/1989 |
| 4528940 | Aquarium A self-contained aquarium having a three section construction including a main section, a heat control section and filter section. A visible horizontal capillary flow tube extends from the heat control section to the filter section through which water flo... | 07/16/1985 |
| 4236488 | Separable multi-component aquarium filtering and cleaning device This invention relates to an internal multi-component accessory for tall aquariums (those whose depth makes the aquatic life inaccessible and cleaning of the inside walls of the aquarium impractical by normal means). The objective of this accessory is to ... | 12/02/1980 |
| 4182267 | Apparatus for keeping aquatic animals alive over long period of time Aquatic animals can be kept alive over a long period of time by utilizing the apparatus of the present invention comprising: a water tank for containing aquatic animals and environmental water, which tank has an inside volume large enough to contain the aquati... | 01/08/1980 |
| 4151810 | Aquarium with improved filter and temperature control system An aquarium tank is provided with a hood formed with a filter compartment. A pump circulates water from the tank through the filter compartment and back into the tank for purification and aeration. A heat exchanger tube is provided in the filter compartme... | 05/01/1979 |
| 4082062 | Integrated aquarium A novel integrated aquarium is disclosed wherein all of the necessary mechanical functions (air pump, lighting, heating) are located in a compartment provided as part of the aquarium base and those components particularly subject to mechanical failure are... | 04/04/1978 |
| 3971338 | Aquarium apparatus An aquarium system is made self contained, even for salt water, by providing it with a sub-gravel filter in series with a carbon filter, and ultra-violet sterilizer and a temperature control unit, and a water withdrawal and return that insures circular fl... | 07/27/1976 |
