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
Mounting apparatus for PCI card
Touch sensing technology
Method and device for determining processed image data about a surround field of a vehicle
Concentrating photovoltaic system module with actuator control
Display screen or portion thereof with graphical user interface
Bicycle shifting method
Providing policy-based operating system services in an operating system on a computing system
  Randomly Featured Patents
Handbag holder
Load cell block and method of manufacturing the same
Packaging box for use with endodontic instruments
Automated signature detection system and method of use
Reagent for the determination of chlorine ion
Method and apparatus for creating lifelike digital representations of computer animated objects by providing corrective enveloping
Collapsible reformer exercise apparatus
Methods and systems for annotation of digital information
Microphone and video camera
Predicate logic based image grammars for complex visual pattern recognition