DISPENSER FOR FLUIDS

摘要

Fluid dispenser for the discharge of pharmaceutical or cosmetic fluids including a fluid reservoir in which fluid is stored prior to discharge, an outlet channel through which the fluid is dispensed to an environment, and a pump chamber which, starting from an initial state with maximum pump chamber volume, is volumetrically reduced by a manual pump activation. An inlet valve arrangement is provided between the fluid reservoir and the pump chamber, which opens in a pressure regulated manner when a negative pressure exists in the pump chamber with respect to the fluid reservoir, and an outlet valve arrangement is provided between the pump chamber and the discharge opening. The outlet valve arrangement includes a switching valve mechanically compelled to open in reaction to a displacement of an activation handle and independent of the fluid pressure in the pump chamber.

主权项

1. A liquids dispenser for discharging pharmaceutical or cosmetic liquids, or liquids of the foodstuff sector, having
a liquids reservoir in which the liquid is stored prior to discharging; an outlet duct through which the liquid may be dispensed to an environment; a pump chamber which, proceeding from an initial state having the maximum pump chamber capacity, is volumetrically reducible by manual actuation of the pump by means of an actuation handle; wherein an inlet valve assembly is provided between the liquids reservoir and the pump chamber, which inlet valve assembly is opened in a pressure-controlled manner when there is negative pressure in the pump chamber in relation to the liquids reservoir; and an outlet valve assembly is provided between the pump chamber and the discharge opening, wherein the outlet valve assembly comprises a switch valve which, independently of the liquid pressure in the pump chamber, as a reaction to the actuation handle being displaced is forcibly opened in a mechanical manner.