| 摘要 |
A closure for containers adapted to be opened by the user's lips. A cap or cap body is provided which is a closure for the container, the cap body carrying a lip openable cap which includes a valve member cooperating with a seat formed within the cap body. The lip openable cap carrying the valve member is normally urged in closing direction by spring means integrally formed with it and constructed to seat against an annular shoulder formed in the container.
|
