Patent ID: 7258127
Filing Date: 2007-08-21
Classification: F17C,Y10T

Abstract:
1. A valve assembly for receiving and directing the flow of pressurized liquid product to the liquid storage tank and gaseous product to the gaseous storage tank and to the user port for use by a user, the valve assembly comprising: a valve body having an inlet port interconnected with at least one each of a liquid port, a gas storage port and a user port, the valve body having a plunger cavity with a plunger stop at one end; a valve stem having a first end with a first end chamfer and a second end with a groove located between a lip and an annular ledge; a circumferential ring located on the valve stem in the groove; an inlet fitting having an inlet hole there through, the inlet fitting for engaging the in let port of the valve body, allowing the flow of pressurized liquid product and retaining the valve stem within the plunger cavity between a chamfer in the inlet fitting and plunger stop of the valve body; and whereby, the flow of pressurized liquid into the inlet hole causes the valve stem and first end chamfer to translate toward and engage the plunger stop in the plunger cavity closing the interconnection of the gas storage port and user port with the liquid port and the inlet port thereby filling and pressurizing the liquid storage tank where upon the reaching of a predetermined pressure, the incoming pressurized liquid ceases to flow, the incoming pressure goes to zero and the valve stem translates toward the inlet fitting where the lip and circumferential ring engage the chamfer of the inlet fitting sealing off the pressurized valve assembly from the atmosphere.