Abstract: A mixing valve for two fluids under pressure at different temperatures. The mixing valve has a body with means defining a valve chamber, separate inlet ports for each of the fluids to be mixed, and an outlet port. A main mixing valve unit projects into the valve chamber. The mixing valve also has a means for causing axial movement of the main mixing valve unit within the main valve chamber while preventing rotation of the main valve unit relative to the valve chamber.

Abstract: An improved automatic shut-off valve that allows the temperature of discharged water to be adjusted by rotating the valve operating handle. The means for shutting off the discharge of water is simplified by attaching a valve closure member directly to a piston which is pushed downward manually to initiate flow and then forced upward by a spring to seat the valve closure member and stop the water flow. The piston moves axially inside a piston cylinder that has a hole in its bottom, and a pin connected to the piston sits in the hole. The clearance between the hole and pin determines the rate at which water can flow into the cylinder, thereby controlling the rate at which the piston is returned to its normally shut position by the spring.

Abstract: A check valve incorporating inspection valve means therein for disclosing the presence or absence of fluid on the "upstream" side of the valve.

Abstract: A plumbing fixture comprising a manually operable hot and cold water mixing valve and a temperature sensor mounted to the mixing valve and to the escutcheon for indicating the temperature of the mixed water.