Patent ID: 8016165

Claim:
A fluid dispenser device comprising: a reservoir ( 10 ); a dispenser head ( 20 ) including a dispenser orifice ( 21 ) disposed at a terminal end of the dispenser head ( 20 ), wherein fluid is dispensed out of the fluid dispenser device via the dispenser orifice; a metering chamber ( 30 ) disposed directly upstream from the dispenser orifice ( 21 ); and a piston ( 40 ) that is slidable in said metering chamber ( 30 ) between a rest position and a dispensing position, said piston ( 40 ) being mounted in stationary manner on said reservoir ( 10 ), said piston is made integrally with said reservoir ( 10 ) and/or with fastener means ( 100 ) that are adapted to be fastened on said reservoir ( 10 ); and wherein said piston ( 40 ) slides in a pump body ( 50 ) disposed in the dispenser head ( 20 ); said pump body ( 50 ) forms part of a closure member ( 55 ) that cooperates directly with the dispenser orifice and is slidable in said dispenser head ( 20 ) between a closed position and an open position of the dispenser orifice ( 21 ).