Liquid dispenser
AssigneeFast & Fluid Management B.V.
InventorsMarcel Hendrikus Petrus Engels, Mark Baak
Life of this patent
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Abstract
Dispenser for dispensing a liquid, in particular a colorant for paint. The dispenser comprises a piston pump and a valve. The piston pump comprises a cylinder and a main piston reciprocatingly fitted inside the cylinder. The valve comprises a valve housing with a dispense opening (16), and a valve core within the valve housing. The valve core is rotatable and comprises a main channel and a secondary dispense channel with a smallest diameter which smaller than the smallest diameter of the main channel. The secondary dispense channel comprises an axial channel section communicating with the piston pump. A secondary piston fits reciprocatingly inside the axial channel section in the valve core.
Claims18
A dispenser for dispensing a liquid comprising
- a piston pump comprising a cylinder and a main piston reciprocatingly fitted inside the cylinder;
- and
- a valve comprising a valve housing with a dispense opening, and a valve core within the valve housing, the valve core being rotatable about an axis of rotation and comprising:
- a main channel;
- a secondary dispense channel with a smallest diameter which is smaller than the smallest diameter of the main channel,
- wherein the secondary dispense channel comprises an axial channel section communicating with the piston pump, and
- the dispenser comprises a secondary reciprocating member that fits reciprocatingly inside a pump space comprising the axial channel section in the valve core.
Dependencies are inferred from the claim text.