초록 ▼

A drinking cup assembly including a cup having an open end; a cap adapted to enclose the open end, the cap including a drinking spout and an air vent and mating surfaces adjacent or incorporated into the drinking spout and the air vent; and a flow control valve including two stacks adapted to engage

A drinking cup assembly including a cup having an open end; a cap adapted to enclose the open end, the cap including a drinking spout and an air vent and mating surfaces adjacent or incorporated into the drinking spout and the air vent; and a flow control valve including two stacks adapted to engage the mating surfaces, each of the two stacks having a concave valve face at a top portion thereof.

대표청구항 ▼

1. A drinking cup assembly comprising:a cup having an open end; a cap adapted to seal said open end, said cap having a drinking spout and a mating surface, said mating surface being in fluid communication with said spout; and a valving element that has a stack, said stack being sized and configured

1. A drinking cup assembly comprising:a cup having an open end; a cap adapted to seal said open end, said cap having a drinking spout and a mating surface, said mating surface being in fluid communication with said spout; and a valving element that has a stack, said stack being sized and configured to engage said mating surface and thereby place said stack in fluid communication with said spout, said stack having a top portion with a concave valve face that extends substantially completely across said top portion and curves inwardly toward said stack.