Patent ID: 7736504
Filing Date: 2010-06-15
Classification: B01D,C02F

Abstract:
1. A crossflow cartridge filter comprising a filter housing, a crossflow filtration element, and a filter cap, wherein the filter cap defines at least one feed throughbore, at least one permeate throughbore, and at least one concentrate bore, each respectively in fluid communication with a feed water flow circuit, a permeate flow circuit and a concentrate flow circuit passing within the cartridge filter; wherein the filter cap is configured to sealingly attach to a connecting member on a compatible manifold assembly, wherein the connecting member comprises a feed outlet bore, a permeate throughbore, and a concentrate inlet bore, each complementary to a corresponding bore on the filter cap; wherein respective fluid tight seals are maintained by at least one permeate o-ring, at least one feed o-ring, and a least one concentrate o-ring; wherein a permeate stream is isolated from a feed stream by the at least one permeate o-ring, the feed stream is isolated from the permeate stream and a concentrate stream between the at least one permeate o-ring and the at least one feed o-ring, and the concentrate stream is isolated from the feed stream between the at least one feed o-ring and the at least one concentrate o-ring; wherein the filter cap comprises a substantially cylindrical cross-section and a longitudinal axis, wherein the feed and permeate throughbores are oriented substantially parallel to the longitudinal axis, and wherein an outlet portion of the concentrate bore is oriented substantially perpendicular to the longitudinal axis and opens radially, inwardly toward said axis.