Patent ID: 6152164
Filing Date: 2000-11-28
Classification: E03C,Y10T

Abstract:
A valve for charging water into a sewer line trap from a water line containing water under variable pressure, the valve comprising:a) a case having a bore disposed longitudinally there through, the case having an inlet orifice and an outlet orifice; and,b) a cartridge having a top surface disposed adjacent to the inlet orifice, a bottom surface capable of engaging with and closing the outlet orifice, and a chamber, the chamber having at least one aperture disposed therein, the cartridge slidably disposed inside the bore between a first position where water pressure from the water line on the top of the cartridge forces the lower surface of the cartridge to close the exit orifice such that water flows around the cartridge and into the chamber and a second position where a pressure drop in the water line causes a pressure differential between the top of the cartridge and the inside of the chamber such that the cartridge moves away from the exit orifice to allow a charge of water to be released into the sewer trap line.