Patent ID: 6918357

Claim:
A valve for regulating fluid flow comprising: a stepper motor; a first valve chamber that includes an inlet port for receiving fluid into the valve; a second valve chamber that includes an outlet port for dispensing fluid from the valve, wherein the first valve chamber includes an opening between the first valve chamber and the second valve chamber; a first member that is rotatable and operatively attached to the stepper motor; a second member that engages the first member for linear movement of the second member between a first position and a second position when the first member is rotated by the stepper motor. a sealing mechanism that is operatively attached to the second member, wherein the sealing mechanism can move adjacent to the opening when the second member is in the first position and the sealing mechanism can move away from the opening when the second member is in the second position; and a biasing mechanism that is in contact with the second member for returning the sealing mechanism to the second position when power is removed from the stepper motor.