Abstract: A dispensing pump made of plastic for dispensing paste-like materials from a paste container. It is provided with a bellows, which connects an upper housing part to a lower housing part. The housing parts are guided telescopically in one another. A paste channel is located within an annular wall. A second hollow body is inserted into the upper housing part, and the second hollow body forms the paste storage space, which is in connection with the paste channel and in which an elastic diaphragm wall having a plug-like closing member is arranged.

Abstract: A dispenser has a pump device (4) with two hollow pistons (9, 10) which are displaceable coaxially with respect to each other, and wherein one piston is seated at the pump base while the other piston is seated on an actuating button (30). The button continues into a mouthpiece (29) and is surrounded by a bellows (B) which provides an axial restoring force. The bellows (B) forms a piston ring (K) at a distance (A) from the upper end of the actuating button-side hollow piston (9), and slides on a wall surface (b 9') of the button side hollow piston.