| 摘要 |
A pump lid assembly for use with a container that may be used to create a vacuum or a pressurized state within the container, the lid assembly having a rotatable pump cylinder configuration and a pump piston mechanically associated with the rotatable pump cylinder configuration such that at least a portion of the piston is deployed within the pump cylinder, thereby defining between them a variable pump volume The pump piston is configured with a substantially cylindrical piston wall having an interior surface and an exterior surface such that at least a portion of the interior surface is configured for releasable attachment to the container at least a portion of the exterior surface of the piston wall interacts with the rotatable pump cylinder configuration so that rotation of the rotatable pump cylinder configuration generates linear motion of the rotatable pump cylinder configuration.
|
