Patent ID: 7950597

Claim:
Actuator for a dispenser device for spraying contents of a receptacle that is pressurized or of a receptacle that has a pump, the actuator comprising: a channel connectable to a receptacle outlet ( 19 ) on one side ( 90 ) of the actuator for receiving the pressurized contents of the receptacle, said channel having an orifice ( 11 ) for spraying the pressurized contents on another side ( 91 ) of the actuator, wherein the channel comprises an expandable volume chamber ( 71 ) having a moveable wall, said orifice forming an outlet of the volume chamber, wherein the orifice has a valve for opening and closing the orifice, the valve biased by at least biasing means ( 27 ) in the closed position, which biasing means is also coupled with the moveable wall of the expandable volume chamber for biasing said wall in an unexpanded position of the chamber and further comprising actuation means arranged to allow a flow of the contents from the receptacle into the channel and expandable volume chamber, wherein the actuation means is coupled with the biasing means ( 27 ) for attenuating the bias on the valve biasing the valve in the closed position, if the actuation means is actuated, to allow the opening of the valve with a relative low force generated by the flow of contents to be sprayed.