Patent ID: 6929025

Claim:
A two-way valve, comprising: a valve case having two openings and a first valve seat formed at one of the two openings; a first valve member movably disposed in the valve case for closing the one of the two openings upon abutting against the first valve seat, said first valve member having a first head portion forming a protrusion, a communication path with two ends and a second valve seat formed at the first head portion in one of the two ends of the communication path; a first urging device disposed in the valve case for urging the first valve member toward the first valve seat; a second valve member disposed in the valve case and having a second head portion located outside the first valve member for closing the communication path upon abutting against the second valve seat from outside the first valve member, said second head portion having a circular cone shape to form an inclined surface from the second head portion to the first head portion when the second valve member is disposed on the second valve seat so that when the first valve moves away from the first valve seat against a force of the first urging device, a fluid is guided smoothly to an inner surface of the valve case along the second valve head and the first valve head; and a second urging device disposed in the valve case for urging the second valve member toward the second valve seat at the communication path, said second urging device being disposed between the second valve member and an inner surface of the valve case.