Leak resistant drinking cup
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 18, 2012
Grant Date -
Nov 25, 2010
app pub date -
May 22, 2009
filing date -
May 22, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A leak resistant drinking cup has a container with an open top and a lid assembly for removable attachment to the container for selectively closing the open top. The lid assembly includes a liquid discharge member for allowing liquid in the container to exit the cup. A closure member is adapted for placement adjacent the open top of the container when the lid assembly is attached to the container. A flexible diaphragm is moveable between a sealed position and an unsealed position. The diaphragm is moveable from the sealed position to the unsealed portion by a vacuum being applied to the diaphragm by a user sucking on the liquid discharge member. The vacuum causes the diaphragm to flex toward the container and at least in part away from the closure member and thereby move the diaphragm from the sealed position to the unsealed position.
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