PRESSURE GENERATOR AND DISPENSING APPARATUS UTILIZING SAME

摘要

An apparatus for dispensing product from a container (16) in which first and second members (36, 40) are provided in a vessel (32) which is disposed in the container (16). The first member (36) defines with the vessel a first chamber (38), and the second member (40) defines with the first member (36) a second chamber (46). When the first member moves to a second position in response to the pressure in the container decreasing below the predetermined pressure the first chamber is connected with the container to permit the pressurized gas in the first chamber to pass to the container. When the first member moves to a first position this connection is disconnected to prevent the passage of the gas.