Importance

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Abstract

Disclosed is an apparatus capable of precisely feeding contents at a desired quantity by discharging and then mixing the contents, which are separately stored in double chambers, on the basis of a difference in pressure between double chambers in a state that an atmospheric air pressure is applied to the cosmetic material vessel. A circular connecting member is disposed between an inner highest portion of the lower case and the inner lower portion of the upper case. The discharge tubes extend from the first and the second chambers through the inside of the connecting member into the upper case. The highest upper free ends of the discharge tubes are inserted into the body of a discharge-quantity control part disposed at an internal center portion of the upper case. A valve is rotatably disposed between the highest upper free ends of the discharge tubes within the body. The valve is integrally connected with a dial disposed between the valve and the circular connecting member in such a manner as to operate together with the dial. The valve selectively opens or closes the highest upper ends of the discharge tubes by receiving a driving force from the dial. A vacuum prevention cap is disposed at a horizontal partition and allows an external air to be introduced into the first chamber and the second chamber and stops the contents from discharging so as to offset an atmospheric air pressure difference being generated during discharging contents from the first and the second chambers. Sealing members are disposed among the upper surfaces, the lower surfaces of the connecting member and outer circumferential surfaces of the discharge tubes.

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First Claim