Abstract: Disclosed is a gravity flow spool valve for dispensing small volumes of liquid. The valve comprises an elongated hollow housing and a piston adapted to move within the interior of the housing. The piston has a first and second spool, spaced from each other using a coupling rod. The piston is coupled to an activation button which moves the piston from a dispense position to an intake position. In the intake position, the second spool is moved past a series of intake holes in the housing and fluid surrounding the holes flows into the chamber defined between the interior surface of the housing, the first spool and the second spool. When in the dispense position, the chamber is in communication with a spout and a ventilation hole which allows the fluid contained within the chamber to flow out the spout. One application of the valve is dispensing perfume samples.

Abstract: Disclosed is a gravity flow spool valve for dispensing small volumes of liquid. The valve comprises an elongated hollow housing and a piston adapted to move within the interior of the housing. The piston has a first and second spool, spaced from each other using a coupling rod. The piston is coupled to an activation button which moves the piston from a dispense position to an intake position. In the intake position, the second spool is moved past a series of intake holes in the housing and fluid surrounding the holes flows into the chamber defined between the interior surface of the housing, the first spool and the second spool. When in the dispense position, the chamber is in communication with a spout and a ventilation hole which allows the fluid contained within the chamber to flow out the spout. One application of the valve is dispensing perfume samples.