Patent ID: 8807372

Claim:
A cap container comprising: a tank having: an upper rim; a bottom opposite to the upper rim; and, a hole formed through the bottom; a conical protrusion having: a lower end connected to the bottom of the tank, an upper end opposite to the lower end; an inner wall extending from the lower end to the upper end and defining a channel, wherein the channel passes through the lower end and the upper end and communicates with the hole of the tank; an engagement part formed at the inner wall near the lower end, wherein at least two projections are formed diametrically opposite each other on the engagement part and extend toward each other and toward the inner wall; a stepped coupling having at least one annular groove and formed between the bottom of the tank and the lower end of the conical protrusion, wherein a concavity of the at least one annular groove of the stepped coupling faces away from the tank; and, a trough connecting to a wall of the tank and located between the upper rim and the bottom of the tank, wherein the trough further has an opening facing to the upper rim of the tank.