| 摘要 |
<p>1,165,400. Dispensing liquids by gaseous pressure. BI AEROSOL VERPACKUNGS - G.m.b.H. & CO. K.G. (AERO-PACK DEUTSCHLAND). Dec. 19, 1967 [Dec. 24, 1966], No.57520/67. Heading F1R. A pressurized dispenser for liquids or pastes, e.g. foodstuffs, comprises a collapsible inner container 20 of soft aluminium, or other soft metal, mounted within an outer container 10 charged with a propellant gas, a profiled rod 28 and/or a stay member being provided inside container 20 to ensure complete discharge of its contents, and a discharge valve being mounted on the inner container neck 22. The discharge valve comprises a tubular stem 40 with a conical head 38 having outlet ports 42 controlled by an annular member 44 having finger rests 46 and biased by spring 36 into its closed position. The conical aperture in member 44 has a wiping action over conical head 38 as the valve closes, to remove product residues from head 38. Shearing ribs 50 on stem 40 shear when the valve assembly has been screwed on to the inner container neck sufficiently tightly, presenting removal of the valve assembly. A stiring-shaped stay member may be provided in the inner container to control its collapse, and a propellant charging valve is provided on the outer container, Figs. 1 and 2 (not shown).</p> |
