| 摘要 |
<p>A storage container (1) for maintaining/restoring the internal pressure of objects such as tennis balls and the like comprises two hollow substantially cylindrical body parts (2,3) each having one open and one closed end and one of which (3) is of slightly smaller diameter than the other (2) and slides within the other in an axial direction. O-rings (11) are provided between the two body parts to form a seal. A retaining arrangement of grooves (5,6) and projections (8) is provided on facing walls of the two body parts to enable the storage container to be closed using a push and twist and/or screwing action.</p> |
