Glass of drink is resistant to leakage

摘要

Glass of drink is resistant to leakage. The present invention relates to a cup of drink is resistant to leakage that has a seal diaphragm for closing a normal open top of a container of liquid of the glass.The seal may be opened to allow liquid to flow before him and out of glass by applying a vacuum pressure by the person, typically a small child, drinking from the glass. The seal diaphragm has a peripheral edge margin that can be deflected upward by the vacuum pressure to open a path out of the glass of drink.A rib for entry can be used to control the locations in which it is permitted that the margin of peripheral edge is DeFlita.