Leak-proof cup assembly with flow control element
First Claim
Patent Images
1. A drinking cup assembly, comprising:
- a cup having an open end;
a cap adapted to enclose said open end, said cap including a drinking spout, an air vent, an inside surface and a plurality of mating surfaces in communication with said inside surface, one of said plurality of mating surfaces being located adjacent or incorporated into said drinking spout and another of said plurality of mating surfaces being located adjacent or incorporated into said air vent; and
a flow control valve including two stacks, each of said two stacks being adapted to engage a separate one of said plurality of mating surfaces and thereby place said flow control valve in fluid communication with said spout and said vent, each of said two stacks having a top portion with a concave valve face that extends substantially completely across said top portion and curves inwardly toward said stack.
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Abstract
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.
166 Citations
20 Claims
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1. A drinking cup assembly, comprising:
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a cup having an open end; a cap adapted to enclose said open end, said cap including a drinking spout, an air vent, an inside surface and a plurality of mating surfaces in communication with said inside surface, one of said plurality of mating surfaces being located adjacent or incorporated into said drinking spout and another of said plurality of mating surfaces being located adjacent or incorporated into said air vent; and a flow control valve including two stacks, each of said two stacks being adapted to engage a separate one of said plurality of mating surfaces and thereby place said flow control valve in fluid communication with said spout and said vent, each of said two stacks having a top portion with a concave valve face that extends substantially completely across said top portion and curves inwardly toward said stack. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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- 17. A flow control element for use in a spill-proof cup assembly that includes a lid with a drinking spout, an air vent and a plurality of mating surfaces that are engagable with said flow control element to provide channeled fluid communication to each of the spout and vent, respectively, said flow control element comprising two stacks adapted to engage the plurality of mating surfaces of the lid, each of said two stacks having a top portion and a lower portion, each of said top portions having a concave valve face that extends across said top portion and is curved inwardly into said stack, and each of said lower portions having an outer surface that has a diameter that is larger than the diameter of the outer surface of said top portion and is sized to engage one of the plurality of mating surfaces of the lid.
Specification