| 摘要 |
1,224,444. 224, 444. Dispensing liquids by gaseous pressure. L'OREAL May 6, 1969 [May 6, 1968], No. 23178/69. Heading F1R. [Also in Division F2] A valve for simultaneously dispensing a plurality of liquids contained in respective pressurized containers 24, 25 has a central element 30 secured to a fixed plate 28 and having a conical heating surface 31 engaged by concentric tubes 38, 43 integral with respective flexible dome shaped portions 42, 37 attached to plates 36, 41 the interior of each tube being in communication with a given container. Downward pressure on the outermost tube 43 in abutment with the dome 37 causes flexure of domes 42, 37 to unseat tubes 38, 43 and liquid passes to outlet via passages 34, 39 and the space between tube 38 and element 30 for the liquid in container 24, and via passages 35, 46, the space between chamber 45 of plate 41 and the upper face of dome 37, aperture 44 and the space between tubes 38, 43 from container 25. In another embodiment the containers are concentric and the liquid from theoutermost container passes to outlet via an aperture in the fixed plate. The containers may have rigid walls and be internally pressurized or have flexible walls and be externally pressurized. |
