Patent ID: 9227212
Filing Date: 2016-01-05
CPC Classification: B05B,B67B,B67D,G01F

Claim Text:
1. A fluid dispenser for containing and dispensing metered amounts of fluid, the fluid dispenser comprising: a reservoir for containing fluid; a chamber positioned substantially within the reservoir for containing a quantity of the fluid; a piston moveable within the chamber to draw fluid into the chamber when the piston is moved in a first direction with respect to the chamber, and to discharge fluid from the chamber when the piston is moved in a second direction opposite the first direction; a user-manipulatable control coupled to the piston and rotatable about an axis to select one of at least two different metered quantities of fluid to be dispensed, the user-manipulatable control further movable to move the piston relative to the chamber along the axis to selectively dispense the selected metered quantity of fluid; and a protrusion in slidable mating engagement relative to a first aperture defined in at least one of the piston and a wall of the chamber to control movement of the piston relative to the chamber.