Patent ID: 8002000
Filing Date: 2011-08-23
Classification: B65B,B65D

Abstract:
1. An aerosol valve system comprising: a closed container with a top circular opening; an aerosol mounting cup in the top circular opening; a valve housing in the aerosol mounting cup, the valve housing having an inner surface with a first frusto-conical surface; a flexible product bag sealingly connected to a lower extension of the valve housing, the flexible product bag extending into the closed container to define a propellant space between the flexible product bag and the closed container and a product space in the flexible product bag; and a valve stem in the valve housing, the valve stem having a second frusto-conical surface extending around an intermediate portion and an annular indent below a top outer portion, the valve stem being moveable within the valve housing among a fully closed position, a normal dispensing position, a product filling position, and a propellant filling position, wherein the first and second frusto-conical surfaces are separated from one another in the fully closed, the normal dispensing, and the product filling positions, but make annular sealing contact in the propellant filling position, wherein the annular indent is positioned and configured to define the product filling position by receipt of radial slides of a product filling head.