Patent ID: 7721919
Filing Date: 2010-05-25
Classification: B65D

Abstract:
1. A system, comprising: a pressure package configured to hold a content to be delivered; a high-pressure chamber configured to hold a propellant; a pressure controller comprising a reference pressure chamber, a pressure control passage provided between the high-pressure chamber and the pressure package, and a closing member movable relative to the reference pressure chamber for opening and closing the pressure control passage, the closing member being configured to control a working pressure, the working pressure being applied to the content of the pressure package with the aid of the propellant, the working pressure being determined on the basis of a predetermined reference pressure in the reference pressure chamber, and the pressure controller being further connected to the high-pressure chamber by a feed-through; and a movable member positionable in the feed-through in at least a control position and a neutral position; wherein the movable member, in the control position, clears the feed-through to enable control of the working pressure by the pressure controller, and the movable member, in the neutral position, blocks the feed-through, so that control of the working pressure by the pressure controller is then impossible.