Fluent material handling – with receiver or receiver coacting mea – With soil removing – coating – lubricating – sterilizing and/or...
Patent
1979-03-05
1980-11-25
Schmidt, Frederick R.
Fluent material handling, with receiver or receiver coacting mea
With soil removing, coating, lubricating, sterilizing and/or...
53 86, 92 98D, 92168, 141 51, 141264, 141284, 141392, 222380, B65B 312, B65B 3102
Patent
active
042352657
ABSTRACT:
A mechanism and method for filling containers within a sterile chamber under aseptic conditions includes a vertically disposed nozzle (48) which forms an extension of the sterile chamber and which is arranged to have its lower outlet end inserted into an open container to be filled and which is provided with valve closure element (51) which is opened when the nozzle is at its lowermost position and which remains open during filling of the container which is accompanied by upward movement of the nozzle and of the closure element while maintained in open position so as to prevent splashing together with a drip proof seal (49, 52, and 53) for preventing dripping following closure of the valve means. A measuring cylinder (10) and associated piston (9) are mechanically interrelated with the nozzle so that charging movement of the piston forces a measured quantity of flowable material into the nozzle for discharge therefrom while the nozzle is moved upwardly and once the upward movement of the nozzle is completed upward movement of the measuring piston commences followed by independently controlled downward movement of the nozzle and opening of the nozzle closure means. According to one feature of the invention the flowable material is isolated from atmosphere by suitable barrier cavities containing sterile inert gas under slight pressure above atmospheric pressure and defined in part by rolling seals which isolate the moving elements from atmoshpere.
REFERENCES:
patent: 3005473 (1961-10-01), Ring
patent: 3760853 (1973-09-01), Trusselle
patent: 3804135 (1974-04-01), Waxlax
patent: 4051878 (1977-10-01), Ohmeis et al.
patent: 4099549 (1978-07-01), Belysher et al.
Schmidt Frederick R.
The Mead Corporation
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