Resources Contact Us Home
Aquarium filter water return chamber

Image Number 3 for United States Patent #7601258.

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.

  Recently Added Patents
Controller for soldering iron
Solid-state imaging device and electronic apparatus with antireflection structure
Systems and methods for unchoked control of gas turbine fuel gas control valves
Systems and methods for electronic verification of vehicle insurance coverage
Direct converting apparatus, method for controlling the same, and control signal generation device
Parallel processing computer systems with reduced power consumption and methods for providing the same
Discharge lamp comprising coated electrode
  Randomly Featured Patents
Portable tape reader
Golf club head
Instruction controlled audio visual system
Ink set, ink jet recording method, recorded matter, and ink jet recording apparatus
Cement compositions for controlling alkali-silica reactions in concrete and processes for making same
Image processing apparatus, printer including the same, and image processing method
Quinoline carboxylic acid derivatives having 7-(4-amino-methyl-3-oxime) pyrrolidine substituent and processes for preparing thereof
Means for fabricating tapered tubing
Solubility of cellulose in ionic liquids with addition of amino bases
Apparatus for testing a plurality of integrated circuits in parallel