Patent ID: 9642437
Date: 2017-05-09
CPC Classifications: A45D,B65D

Claim:
1. A valve for dispensing small volumes of liquid comprising: a housing having a hollow elongated sleeve with a first end and a second end; a spout and associated ventilation hole coupled to the housing at the first end and at least one intake hole through the housing at the second end thereof; a piston having a first spool and a second spool spaced a fixed distance from each other via a connecting rod; said first spool and said second spool adapted to be moveable within and be in sealing engagement with an interior wall of the said housing; said first spool, said second spool and said interior wall of said housing define a chamber there between; and an activation apparatus coupled to said piston to move said piston between an intake position and a dispense position; wherein when said piston is in the intake position, said chamber is in communication with said at least one intake hole and isolated from said spout and said ventilation hole to allow the flow of fluid surrounding the at least one intake hole to enter the chamber; and when said piston is moved to said dispense position, said chamber is in communication with said spout and said ventilation hole and isolated from said at least one intake hole to allow the fluid within the chamber to flow out the spout; and wherein a coil is wrapped about the connecting rod to occupy volume.