Eye contour make-up device with parallel tanks and screw dispensing

The patent implements multiple reservoirs (first and second reservoirs) nested within a single hollow tube structure. Each reservoir is positioned parallel to the other inside the tube, with each having its own tip for dispensing. This nesting approach allows multiple cosmetic liquids to be stored in one integrated device without requiring separate containers, thus increasing the quantity of substances while managing device complexity through a unified structural framework.

The patent divides the dispensing mechanism into separate segments for each reservoir. Each reservoir (first and second reservoirs) is equipped with its own dedicated dispensing tip (first tip and second tip) positioned at the first end of the hollow tube. This segmentation allows each cosmetic liquid to be dispensed independently through its own tip, ensuring precise control and preventing mixing of different liquids, thereby improving dispensing precision while maintaining manageable complexity through modular design.

The patent introduces a wheel and endless screw mechanism as an intermediary component to control the dispensing of cosmetic liquids. The wheel, positioned at the second end of the hollow tube, engages with the endless screw that runs between the reservoirs. Rotating the wheel turns the endless screw, which in turn compresses the cosmetic liquids in the reservoirs and forces them out through the tips. This intermediary mechanical linkage provides easy manual operation for precise dispensing control while encapsulating the complexity within a coordinated mechanical system.