Patent ID: 8375990

Claim:
A mixing valve comprising: a first flow control member including a first surface, a hot water inlet port, and a cold water inlet port; a second flow control member including a second surface facing the first surface of the first flow control member, the second flow control member being supported for rotation about a center axis extending perpendicular to the second surface such that the second surface is in sliding contact with the first surface; a flow control channel extending inwardly from the second surface of the second flow control member, the flow control channel including a first hot water flow control portion, a first cold water flow control portion circumferentially spaced from the first hot water flow control portion, a second hot water flow control portion circumferentially spaced intermediate the first cold water flow control portion and the first hot water flow control portion in a first angular direction from the first cold water flow control portion, and a second cold water flow control portion circumferentially spaced intermediate the first cold water flow control portion and the first hot water flow control portion in a second angular direction from the first cold water flow control portion, the first angular direction being one of clockwise and counterclockwise, and the second angular direction being the other of counterclockwise and clockwise; a carrier operably coupled to the second flow control member for rotating the flow control portions of the flow control channel in an arcuate path about the center axis; wherein rotation of the second flow control member about the center axis within a first angular range aligns at least one of the first hot water flow control portion with the hot water inlet port, and the first cold water flow control portion with the cold water inlet port for permitting fluid flow at a first flow rate through the flow control channel; and wherein rotation of the second flow control member about the center axis within a second angular range aligns at least one of the second hot water flow control portion with the hot water inlet port, and the second cold water flow control portion with the cold water inlet port for permitting fluid flow at a second flow rate through the flow control channel.