Abstract: The invention relates to a dispensing unit, particularly suitable for a liquid container, comprising an air pump with an air cylinder and an air piston (31), wherein an air chamber (32) is defined between the air cylinder and the air piston, a liquid pump with a liquid cylinder and a liquid piston (24), wherein a liquid chamber (30) is defined between the liquid cylinder and the liquid piston. An axially displaceable activating element (36) for activating the pumps, and upper edge (50) of air piston (31) for closing air supply to the air pump, and an oblique wall (51) of activating element (36) for closing air discharge from the air pump. The air piston and the liquid piston are movable in axial direction relative to the activating element in order to close air supply to the air pump and close air discharge from the air pump.

Abstract: The invention relates to a dispenser, particularly suitable for a liquid container, comprising: an air pump with an air cylinder (23) and an air piston (3) axially displaceable in the air cylinder, an air space (19) defined between the air cylinder and the air piston, supply-closing means (39) for closing the air supply to the air pump, discharge-closing means for closing the air discharge from the air pump, a cover (1) connected to the air piston, an air inlet opening (12) in the cover, wherein the air inlet opening debouches directly into the air space, and an annular element (39) which extends axially on the inside of the cover and which comprises an edge part, which edge part is in contact with at least the part of the inner wall of the cover located around the air inlet opening (12).

Abstract: A dispenser, particularly suitable for a liquid container, comprising a liquid pump provided with an inlet having an inlet valve and an outlet having an outlet valve, an air pump provided with an inlet having an inlet valve and an outlet having an outlet valve, a mixing chamber which is in communication with the outlet of each pump, and a dispensing part provided with an outflow channel with an outflow opening, wherein the outflow channel is in communication with the mixing chamber, and wherein the outlet valve of the air pump is arranged adjacent to the outlet of the liquid pump.

Abstract: The invention relates to a dispenser, particularly suitable for a liquid container, comprising: an air pump with an air cylinder (23) and an air piston (3) axially displaceable in the air cylinder, an air space (19) defined between the air cylinder and the air piston, supply-closing means (39) for closing the air supply to the air pump, discharge-closing means for closing the air discharge from the air pump, a cover (1) connected to the air piston, an air inlet opening (12) in the cover, wherein the air inlet opening debouches directly into the air space, and an annular element (39) which extends axially on the inside of the cover and which comprises an edge part, which edge part is in contact with at least the part of the inner wall of the cover located around the air inlet opening (12).

Abstract: The invention relates to a dispensing unit, particularly suitable for a liquid container, comprising an air pump with an air cylinder and an air piston (31), wherein an air chamber (32) is defined between the air cylinder and the air piston, a liquid pump with a liquid cylinder and a liquid piston (24), wherein a liquid chamber (30) is defined between the liquid cylinder and the liquid piston, an axially displaceable activating element (36) for activating the pumps, supply-closing means (50) for closing air supply to the air pump, and discharge-closing means (51) for closing air discharge from the air pump, wherein the air piston and the liquid piston are movable in axial direction relative to the activating element in order to form the supply and discharge-closing means for air.

Abstract: A dispenser, particularly suitable for a liquid container, comprising a liquid pump provided with an inlet having an inlet valve and an outlet having an outlet valve, an air pump provided with an inlet having an inlet valve and an outlet having an outlet valve, a mixing chamber which is in communication with the outlet of each pump, and a dispensing part provided with an outflow channel with an outflow opening, wherein the outflow channel is in communication with the mixing chamber, and wherein the outlet valve of the air pump is arranged adjacent to the outlet of the liquid pump.

Abstract: A foam forming unit particularly suitable for a liquid container, comprising a pump for liquid and a pump for air, which are each provided with an inlet and an outlet, the foam forming unit further comprising a mixing chamber which is in communication with the outlet of each pump, a dispensing part provided with an outflow channel with a foam opening, the channel being in communication with the mixing chamber, and valves in respectively the inlet and the outlet of each pump for drawing in respectively delivering air and liquid, wherein one or more valves are formed integrally with the air pump or liquid pump into a single construction element.

Abstract: A foam forming unit particularly suitable for a liquid container, comprising a pump for liquid and a pump for air, which are each provided with an inlet and an outlet, said foam forming unit further comprising a mixing chamber which is in communication with the outlet of each pump, a dispensing part provided with an outflow channel with a foam opening, the channel being in communication with the mixing chamber, and valves in respectively the inlet and the outlet of each pump for drawing in respectively delivering air and liquid, wherein one or more valves are formed integrally with the air pump or liquid pump into a single construction element.

Abstract: The invention relates to a dispensing cap for a liquid container provided with an applicator fixed thereto and for insertion into an opening of the liquid container. The dispensing cap has a closable outlet opening in its outer end located opposite the applicator. The opening is connected along a channel running through the dispensing cap to a feed aperture arranged in the vicinity of the applicator. A closing member co-acts with the feed aperture. The invention likewise relates to a liquid container provided with a dispensing cap of the above described type.