Patent ID: 7182858
Filing Date: 2007-02-27
Classification: B01D,C02F,Y10T

Abstract:
1. A filter apparatus for treating water containing particulate or microbial contaminants comprising: a first filter element disposed within a first sealed outer housing and in fluid communication with a first inlet port and a first outlet port, the first filter element having a first flow capacity and adapted to remove contaminants that are larger than a first contaminant size; a second filter element disposed within the first sealed outer housing and downstream of the first filter element and in fluid communication with a second inlet port and a second outlet port, the second filter element having a second flow capacity higher than the first flow capacity and adapted to remove contaminants that are larger than a second contaminant size; and an accumulating vessel external to said sealed outer housing and in fluid communication with the first outlet port and the second outlet port for storing water that has been treated by the first filter element prior to treatment by the second filter element.