The dispenser with storage chamber of variable volume and a set of one-way valve for dispensing creams and other substu00e1ncias calcu00e1vel

摘要

The dispenser with storage chamber of variable volume and a set of one-way valve calcu00e1vel for dispensing creams and other substu00e1ncias a dispenser has a housing and a chamber gunZenamento of variable volume formed within the housing and defining a substantially hermetic sealing afluido between the camera and the exterior of the housing for storing a substance to be hasNsada. A piston is mounted within the housing, and a one-way valve is mounted within the housing and coupled in fluid communication with the storage chamber of variable volume.A chamber is coupled in fluid communication between the piston and the one-way valve.And at least one of the piston and the valve is calcu00e1vel manually in relation to the other between (I) a first position in which the piston is located at least partially out of the compression chamberTo allow draining of the substance chamber of variable volume storage chamber for the compression.And (II) a second position in which the piston is located at least partially inside the compression chamber to pressurize the substance inside the compression chamber above the opening of the vu00e1lvUla, pressurizando and, in turn, avoiding substance through the one-way valve, and out of the dispenser.