Patent ID: 7325707

Claim:
A dispenser for a liquid or pasty product, comprising a hollow body and a piston which is mounted for sealed displacement within said body and delimits with said body a chamber for the product to be dispensed, an outlet channel being defined in an end wall of said body, characterized in that it comprises a toothed wheel mounted to rotate with respect to said body at one end of the latter, in that a rotation blocking arrangement is defined between said body and said piston, in that said piston has a hollow skirt with an internal thread, in that said toothed wheel comprises an inner cylindrical part which is engaged in said hollow skirt, and in that this cylindrical part has an external thread and is screwed into said hollow skirt, and further characterized in that a needle is mounted to slide in a sealed manner through said piston and in line with the internal orifice of said outlet channel, in that it is elastically biased toward said outlet channel, and in that the end of said needle is shaped and dimensioned so as to engage in said outlet channel and close off the latter.