| 摘要 |
A cup assembly having an open end, comprising: (a) a dual wall cup assembly comprising: (i) an outer cup having a truncated conical-like shape with side wall, larger top and smaller end, the end is closed and sealed by bottom wall and the top is open; (ii) an inner cup having a truncated conical-like shape with side wall, larger top and smaller end, the end is closed and sealed by bottom wall; and (iii) the inner cup is configured to be receivable within the outer cup to create a gap between side wall of an inner surface of the outer cup and an outer surface of the inner cup and between the bottom walls; and (b) the cup assembly is a child spill-proof cup that has an externally threaded upper end for removably mounting cap thereon, the cap has a depending collar, the collar has an internal thread adapted to threadedly engage the threaded upper end of the cup, the collar includes an inner flange that extends around the cap concentrically with and inside of the thread, the cap has a spout that projects from one side thereof upwardly, the spout is formed integrally with the cap and includes a front and rear walls that converge to an outwardly protruding tip of the spout, and a valve located adjacent to or incorporated into the spout wherein the valve substantially prevents a liquid from leaking out of the spout.
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