Bottles and jars – Nursing bottles and nipples – With valve for liquid
Reexamination Certificate
2005-04-19
2005-04-19
Weaver, Sue A. (Department: 3727)
Bottles and jars
Nursing bottles and nipples
With valve for liquid
C215S011100, C220S714000, C030S368000
Reexamination Certificate
active
06880713
ABSTRACT:
A spill resistant container (e.g., a sippy cup) including a flow control element including a membrane defining multiple pinholes for controlling the flow of liquid through a drinking spout. The flow control element is mounted on a cover that screws onto a cup-shaped body such that the membrane is positioned between liquid stored in the cup-shaped body and the drinking spout, which is formed on the cap. The flow control element is formed from a suitable elastomeric material (e.g., soft rubber, thermoplastic elastomer, or silicone) such that the membrane stretches when subjected to a differential pressure. The pinholes are formed by puncturing the membrane using one or more pins having a substantially circular cross-section and sized such that each pinhole is closed by the surrounding elastomeric material when the pins are removed.
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Bever Patrick T.
Bever Hoffman & Harms LLP
Insta-Mix, Inc.
Weaver Sue A.
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