Patent ID: 8430273

Claim:
Dispenser unit suitable for a liquid container, comprising: an air pump with an air cylinder and an air piston axially displaceable in the air cylinder, an air space defined between the air cylinder and the air piston, supply-closing means for closing an air supply to the air pump, discharge-closing means for closing an air discharge from the air pump, an axially displaceable activating element for activating the air pump, and an air inlet opening in the activating element, wherein the air inlet opening debouches in the air space, characterized in that at least a part of the air piston forms the supply-closing means, said part being arranged against the inner wall of the activating element and over the air inlet opening, wherein the air piston is movable axially relative to the activating element; a liquid pump with a liquid cylinder and a liquid piston, wherein a liquid chamber is defined between the liquid cylinder and the liquid piston; and an insert which is connected to the activating element and which comprises a mixing chamber for mixing air from the air pump and liquid from the liquid pump.