Patent ID: 7326266
Filing Date: 2008-02-05
Classification: B01D,Y10S,Y10T

Abstract:
1. A filter for removing liquids from a pressurized gaseous stream, the filter comprising: (a) a filter element disposed in a body defining an inner chamber and an inner chamber pressure; (b) a housing, having the body disposed therein and an outer chamber and outer chamber pressure defined by a region outside the inner chamber and inside the housing; and (c) a drain device, having an orifice in the inner chamber and the outer chamber for draining the liquids from both the inner chamber and the outer chamber from the filter, wherein the drain device comprises a spring loaded ball or valve to open or shut the orifice in the inner chamber, and wherein the spring loaded ball or valve shuts the inner chamber drain orifice when the outer chamber pressure is greater than the inner chamber pressure.