Patent ID: 6536631
Filing Date: 2003-03-25
Classification: B65D

Abstract:
A device for dispensing fluid comprising:a pressure-operated reservoir and a dose-metering head communicating with the reservoir to permit at least partial flow of the fluid to at least one outlet opening, the head comprising: a fixed body and a membrane which, when at rest, comes into surface contact with an apex portion of the fixed body on which said membrane is tightly mounted, wherein tightening of the membrane, during pressure operation of the reservoir, permits a flow from the reservoir via a peripheral space delimited by the membrane and by said part of the fixed body and which forms a passage for the fluid to the outlet opening, and, in the absence of pressure on the reservoir, to permit the membrane to occupy an equilibrium position in which the membrane is in surface contact with said apex portion, essentially closing off the passage for the fluid, which essentially tightens the communication between the outlet opening and the reservoir.