US 10,537,906 B2 · Metered and active sprayer devices with aerosol functionality (“Flairosol II”)

Abstract

In exemplary embodiments of the present invention, “Flairosol” dispensing devices can be provided. Such devices utilize a combination of Flair® technology, pre-compression valves and aerosol-like pressurization of the dispensed liquid. Such a dispensing device has, for example, a main body comprising a pressure chamber, the latter being provided with a pressure piston and a pressure spring. The device further has a piston and a piston chamber which draws liquid from a container, for example, the inner container of a Flair® bottle, and fills the pressure chamber with that liquid as a user operates a trigger in various compression and release strokes. The piston chamber has both an inlet valve and an outlet valve, which serve to prevent backflow. Liquid exiting the piston chamber under pressure (supplied by a user pumping the trigger) enters a central vertical channel which is in fluid communication with both the pressure chamber (above the pressure piston) and a dome valve provided near the outlet channel at the top of the dispensing head. The dome valve has a preset pressure, such that once exceeded by the liquid, opens and allows for a spray. If the liquid pressure drops below such preset pressure, the dome valve closes off the outlet channel, which serves to regulate the strength of the flow and preclude leakage. Alternatively, in an activated embodiment, for example, once the liquid is sufficiently pressurized, it can be dispensed by a user allowing the dome valve to open by pressing on an activation button that removes a dome lock.

Claims19

Dependent claims

A method of spraying a liquid, comprising:

providing a dispensing head coupled to a container, the container including an inner container surrounded by an outer container, the dispensing head including an outlet channel and an outlet valve;
providing a pressure chamber within the dispensing head, the pressure chamber extending into the inner container and coupled to the outlet channel;
providing a piston within a piston chamber, an intake of the piston chamber coupled to the inner container, and an outflow of the piston chamber coupled to the pressure chamber;
pressurizing the liquid in the outlet channel above a pre-defined minimum pressure by moving the piston within the piston chamber through one or more release and compression strokes to respectively draw a liquid from the inner container into the piston chamber and expel the liquid from the piston chamber into the pressure chamber;
and
opening the outlet valve and spraying the liquid when the liquid in the outlet channel is pressurized above a pre-defined opening pressure of the outlet valve.

3 more elements

Dependencies are inferred from the claim text.

Metered and active sprayer devices with aerosol functionality (“Flairosol II”)

Life of this patent

Metered and active sprayer devices with aerosol functionality (“Flairosol II”)

Life of this patent

Abstract

Claims19