主权项 |
1. A variable flow cup, comprising:
a cup body having a concave form ending in an upper rim; a flow cap selectively secured to said upper rim, said flow cap having a circular central panel surrounded by a flow gap through which liquid may flow out of said cup, and further including a set of exterior threads on an outer periphery of said flow cap; a control ring mounted to said flow cap for selective longitudinal movement between first and second positions, said control ring including an adjustment skirt having threads on an interior thereof which mate with said exterior threads whereby rotation of said control ring relative to said flow cap causes said movement between said first and second positions, said control ring further including an annular plug which seals said flow gap when said control ring is in said first position and which is spaced from said flow gap when said control ring is in said second position, said control ring further including a peripheral drinking rim extending longitudinally outward therefrom, said peripheral drinking rim having a diameter of no less than about 42 mm. |