BIASED PLUNGERS AND VENT BARS FOR AN APPARATUS FOR INTRODUCING FILLER MATERIAL INTO CONTAINERS

摘要

Biased plungers and vent bars are used with an apparatus for introducing filler material into containers. The biased plungers and vent bars cooperate to provide a means for venting gas that builds up below filler material as it is being introduced from a measuring chamber into an underlying container. In a preferred embodiment, the biased plungers and vent bars share a common elliptical path, which serves to define the relative vertical displacement of the individual elements. The vent bar precedes the filler material into the underlying container and provides a passageway for gas to escape the container as the filler material is introduced thereto.