GB1248665A - Filling method and apparatus - Google Patents

Abstract

1,248,665. Filling containers. S. C. JOHNSON & SON Inc. 10 July, 1969 [10 July, 1968; 26 June, 1969], No. 34719/69. Heading B8T. In a method of, and apparatus for, charging an aerosol container 22 with propellant or with product and propellant, the container is secured in an upright position to a filling platform 11 and propellant is introduced through the platform and through a valve 27 in the container base by projecting to said valve a charging plunger 31, the plunger being connected to a fluid actuated piston 36. Hydraulically operated securing heads (12), Fig. 1 (not shown), with inverted cups (16) may secure the containers whilst propellant is charged via a mechanism 29, Fig. 2, comprising the charging plunger 31 having an integral, spring biased piston 36 housed in a fluid cylinder 30 such that when fluid pressure is applied through an input pipe 41, the plunger is lifted against the spring action to engage the valve 27 and so clears the upstanding guide 34 to permit propellant to flow through the ports 40, the plunger conduit 39, valve 27 and into the container 22. An additional counteracting valve piston (45), Fig. 4 (not shown), may be provided. The aerosol dispensers 226, Fig. 5, may be fed, at station 260, to the pockets 224 of a star-wheel 222, intermittently indexed round to different stations by an air ram 228. At station 264 they are magnetically secured to a spinner disc (268), Fig. 7 (not shown), and spun round by an air motor (270) as product is charged through the top of the container into a depending plastics bag. The dispenser top is fitted at station 305 and propellant is bottom-charged at 306 into the container proper.