Patent ID: 6143187
Filing Date: 2000-11-07
Classification: A01K,B01D,C02F,Y02W

Abstract:
A fluidized bed filter for filtering aquarium water wherein said filter comprises:(a) a main hollow column having one closed end forming a chamber with one open end;(b) an inlet port but no outlet port except for and open outlet channel for conveying said water as it exits said chamber;(c) a filter medium disposed within said chamber; and(d) a hollow delivery tube comprising a top end and an open bottom end, wherein said top end is mounted to said inlet port, with said hollow delivery tube extending into said chamber terminating above said closed end wherein said said open bottom end of said delivery tube is directed towards said first closed end of said chamber such that, when the filter is in operation, the force of said water to be filtered exiting said hollow delivery tube, through said open bottom end, is sufficient to prevent filter media from accumulating between said hollow delivery tube and said first closed end;wherein the force exerted by said aquarium water as it exits the hollow delivery tube and enters the main hollow column fluidizes said filter medium and said water exits through said outlet channel; and wherein said filter is adapted to be hung on an aquarium such that said outlet channel delivers said filtered water to said aquarium.