| 摘要 |
The invention refers to a container system, comprising:
a container (3) for holding a viscous fluid;
a follower (5) in the container adapted to move up and down in the container in response to a change in a level of fluid in the container;
a first vertical member (69) in the container extending through a first opening (71) in the follower; and
a first seal assembly (123) comprising a seal (124) surrounding the first vertical member for sealing the first opening in the follower, said seal being movable in a generally horizontal plane relative to a follower plate (27) to prevent binding of the first vertical member in the first opening as the follower moves in the container. |
