Patent ID: 6997353

Claim:
Fluid product dispenser comprising: a gas reservoir ( 10 ), a fluid product reservoir ( 20 ), a dispensing head comprising at least one dispensing orifice ( 30 ), the gas reservoir and fluid product reservoir being connected to the head so that their contents can communicate with the said at least one dispensing orifice, and a movable actuation wall ( 14 ; 24 ) to simultaneously generate a pressure state in the gas and fluid product reservoirs and thus force the fluid product and the gas through the said at least one dispensing orifice; wherein the dispensing head comprises a gas outlet non-return valve located between the gas reservoir and at least one of the said at least one dispensing orifice, the dispensing head comprising a fluid product outlet non-return valve located between the fluid product reservoir and at least one of the said at least one dispensing orifice, the gas outlet non-return valve opening and closing at a pressure Pg below a pressure Pf at which the fluid product non-return valve opens and closes.