Patent ID: 7243821
Filing Date: 2007-07-17
Classification: B05B

Abstract:
1. A dispenser for a liquid or pasty product comprising a reservoir and a pump which is activated by a tappet, said tappet being connected to a piston, which is mobile inside a pump body, characterised in that said pump body comprises a tubular part that has a smaller gauge than that of the reservoir, covering the piston, and an annular spacer by means of which it is tightly mounted against the inner wall of the reservoir such as to define an annular chamber for said product between the outer surface of said tubular part and the inner surface of said reservoir, in that a dosage chamber, with a cylindrical shape, communicating with said annular chamber, is located in the bottom of said reservoir, in that said piston enters and slides in a watertight manner inside said dosage chamber when said tappet is activated, and in that an outlet valve is defined in said piston, and further characterised in that the inner end of said piston comprises a tapered skirt, made from a flexible material, sized so that its free edge can slide in a watertight manner inside said dosage chamber.