METHOD AND APPARATUS FOR DISPENSING UNDER PRESSURE A MIXTURE OF LIQUIDS

摘要

1439197 Dispensing liquid by gaseous pressure L'OREAL 4 June 1973 [5 June 1972] 26621/73 Heading F1R [Also in Division B1] In a device for dispensing a mixture of several liquids from separate containers subjected to gaspressure, adjustable valves are provided in the flow duct from each container to control the ratio of flow separatly. The device includes a nozzle for connection to a source of pressurized propellant fluid whereby the containers may be pressurized. As shown a device of the type described in Specication 1034528 is provided with adjustable flow valves 24a, 24b in the flow ducts to the mixing chamber 12. Tubes 18a, 18b connect the containers (1), (2) to a connector 21 through a shut-off valve 20 for supplying pressure fluid to the containers. As shown the connector communicates through a pressure regulator 22 with a pressurizing fluid reservoir 23. In modification Fig. 5 (not shown) the containers have non-return valves through which the tubes 18a, 18b communicate with the containers. The reservoir 23 may contain gaseous or liquid pressurizing fluid. The containers (1), (2) may be initially pressurized, before inigition in the device.