Patent ID: 8623206
Filing Date: 2014-01-07
Classification: C02F

Abstract:
1. A liquid filter for gravitationally filtering a liquid from a reservoir above the filter into a filtered liquid receptacle below the filter, the filter comprising: a housing having a top and a bottom, the housing containing a generally horizontal filtering space holding a liquid treatment medium, and comprising one or more liquid inlets at a top portion of the filter and one or more liquid outlets at a bottom portion of the filter configured to cause the liquid to flow in a generally lateral direction through the liquid treatment medium; and two or more first walls upwardly extending into the filtering space from a bottom wall thereof and each ending with an apex and one or more second walls downwardly extending into the filtering space from a top wall thereof, each of the walls defining a closed path, the first and second walls cause the liquid to flow in a curvilinear flow path from the inlet to the outlet, the apexes of the first walls are such that each apex more distal along the liquid flow path is at a lower level than an apex of a first wall more proximal along the flow path.