Liquid purification or separation – With gas-liquid surface contact means – With separator
Reexamination Certificate
2005-01-18
2005-01-18
Prince, Fred G. (Department: 1724)
Liquid purification or separation
With gas-liquid surface contact means
With separator
C210S167150, C210S202000, C210S263000, C210S282000, C210S485000, C119S260000
Reexamination Certificate
active
06843909
ABSTRACT:
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 walls, configured for chemical filtration of the aquarium water, and a block of reticular material juxtaposed with the packet, the block of reticular material being configured for biological filtration of the aquarium water. The packet and the block are secured within a frame to establish an integrated unit for placement within an aquarium water filtration system in which aquarium water is passed through the packet and the block, and the frame is selectively removed from the filtration system and opened for selective removal and replacement of the packet and the block independent of one another.
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Imagine Gold, L.L.C.
Jacob Arthur
Prince Fred G.
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