Patent ID: 8079497
Filing Date: 2011-12-20
Classification: B05B

Abstract:
1. A dispensing unit for a liquid container, comprising: an air pump with an air cylinder and an air piston, wherein an air chamber is defined between the air cylinder and the air piston; 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; an axially displaceable activating element for activating the air pump and the liquid pump; a mixing chamber for mixing air from the air pump and liquid from the liquid pump; a supply-closing element for closing air supply to the air pump; and a discharge-closing element for closing air discharge from the air pump to the mixing chamber, wherein the air piston and the liquid piston are movable in an axial direction relative to the activating element thereby forming the supply-closing element and the discharge-closing element for air; and a base part connected to one of the air cylinder and the liquid cylinder, wherein a locking mechanism for locking the activating element in an axial direction is arranged between the activating element and the base part.