Precise Estimation of High-Speed Network Time-Transfer

The present invention provides a cap having a plurality of readily assembled parts that provide a passage for a beverage or liquid through the cap from the pitcher to the exterior thereof. The cap has a cap body made up of top and bottom portions that are formed so as to snap fit together. The cap body defines an interior cavity or passage from an entry defined by the bottom portion to an exit cooperatively defined by the top and bottom portions. The entry is selectively opened and closed to allow fluid or liquid passage through the cap by a valve that is biased into a closed position. In a preferred embodiment the valve is attached to a plunger having a cylindrical configuration and including a plurality of upwardly and outwardly extending shape memory retentive legs that are confined within a receiving collar attached to the bottom portion. The plunger is moved downwardly from its closed position through the interaction of the plunger with a ring closely and slidably surrounding the receiving collar, the ring being attached to a user accessible push button. The ring further comprises a cantilevered frame having a distal end that defines an axis of rotation for the ring.