Patent ID: 9358480
Filing Date: 2016-06-07
CPC Classification: B01D,C02F

Claim Text:
1. A water filter system, comprising: at least one fluid supply flow conduit; at least one fluid outlet conduit; at least one fluid flush outlet conduit; a plurality of interconnected media filter tank modules each having a bottom side and a top side with a top connector opening, each media filter tank module containing a particulate filter material, wherein each of said plurality of media filter tank modules includes an underdrain configured to be disposed within said plurality of media filter tank modules, at the bottom sides of said plurality of media filter tank modules, respectively, each said underdrain including an underdrain tee connector having at least one inlet flow port configured to be connected in fluid communication with said at least one fluid supply flow conduit, an outlet flow port connected in fluid communication with said at least one inlet flow port, and a plurality of assemblies, each assembly defining an outer periphery and including a plurality of fluid flow directing segments and a plurality of separator segments connected together with fasteners, each of said separator segments not allowing a fluid flow therethrough, each of said fluid flow directing segments of said plurality of fluid flow directing segments including an upwardly directed opening directed toward said module top side and connected in fluid communication with said at least one inlet flow port, each said assembly outer periphery exiting or receiving fluid flow only through said upwardly directed openings; a plurality of back flush valves associated with a corresponding one of said plurality of interconnected media filter tank modules, respectively, each of said plurality of back flush valves being connected to a corresponding top connector opening of one of said plurality of media filter tank modules, each of said plurality of back flush valves being movable between a closed valve position and an open valve position, said plurality of back flush valves back flushing said corresponding one of said plurality of interconnected media filter tank modules, respectively, in said open valve position, each of said plurality of back flush valves including an inlet port connected in fluid communication with said at least one fluid supply flow conduit, an outlet port connected in fluid communication with said at least one fluid outlet conduit, and a flush port connected in fluid communication with said at least one fluid flush outlet conduit; and a controller operatively connected to each of said plurality of back flush valves for controlling operation of said plurality of back flush valves, respectively.