Patent ID: 6093320
Filing Date: 2000-07-25
Classification: A01K,B01D

Abstract:
An apparatus for sediment removal from an aquatic tank having water flow patterns therein comprising a sediment removal device for attaching to a lower end of said tank, said sediment removal device comprising a substantially circular collecting chamber having an outer wall forming a substantially conical shaped bottom wall about an axis, a funnel shaped upper deck concentric with said axis and having a substantially conical shaped deck portion tapering to a spout portion concentric with and opening through an apex of said substantially conical shaped bottom wall, a waste baffle closing a significant portion of an upper end of said collecting chamber, said waste baffle being axially spaced from said upper deck to define an outlet passage therebetween, said waste baffle extending in from the periphery of said chamber defined by said outer wall toward said spout portion of said funnel shaped upper deck, an outlet opening defined by an outer periphery of said spout portion and an inner end of said waste baffle, said outlet opening connecting said collecting chamber with said outlet passage, an injector defining at least one injector passage extending through said upper deck and said waste baffle and opening into said chamber adjacent to the outer periphery of said chamber, said injector passage being shaped to inject liquid from said tank into said chamber substantially at a tangent to said chamber so that said water injected into said chamber flows in a helical path along said substantially conical shaped bottom wall and passes out through said outlet opening into said outlet passage, and a debris outlet from said chamber adjacent to said apex.