| 摘要 |
A staging hopper adapted for being inserted inside the neck of a container includes: a ceiling; a dividing wall projecting from the ceiling having a lower edge; a sloping inlet barrier wall having a rear edge; a floor merging with the barrier wall; and a front wall that extends upwardly from the floor such that a portion of the floor extends forwardly of the front wall. The rear edge of the inlet barrier wall and the top wall define an inlet barrier gap, and the lower edge of the dividing wall and the floor define an outlet barrier gap. The front wall and dividing wall define an outlet chamber. The inlet barrier gap divides an inlet chamber and a barrier chamber, and the outlet barrier gap divides the barrier chamber and the outlet chamber. |
