| 摘要 |
Ordinary filler mechanisms do not fill plastic bottles satisfactorily. Plastic bottles by virtue of their flexible and expansible characteristics will accept more fluid than they will contain when unstressed. Thus when a plastic bottle separates from an ordinary filler mechanism, the fluid gushes out upon separation. The present system sucks back a predetermined quantity of fluid from the bottle before the bottle separates so that the proper volume of fluid is contained in the bottle. The present system does this with a simple mechanism.
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