CPC B65D 83/0033 (2013.01) | 12 Claims |
1. A dispenser, comprising:
a reservoir, comprising:
a bottom;
a neck opposite the bottom; and
an inner wall between the bottom and the neck;
a dispenser attached to the neck of the reservoir;
a piston seated in the reservoir, comprising:
a crown, comprising:
a crown central part;
an outer surface; and
a plurality of guiding tabs extending from the outer surface and oriented towards the neck of the reservoir, each of said plurality of guiding tabs comprising a free end, wherein each free end is in contact with the inner wall of the reservoir;
a flexible disk, comprising:
a central part; and
a sealing lip in contact with the inner wall of the reservoir;
wherein the crown is molded from a material selected from the group consisting of polyethylene, propylene, and polystyrene; and, wherein the crown further comprises at least one anti-microbial agent in the crown material.
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