A vacuum container assembly for storage of food includes a container, which comprises glass material, and a cover, which is sized complementarily to an open top of the container, through which food can be added to the container. The cover closes the open top upon positioning of the cover on an upper edge of a perimeter wall of the container with a gasket of the cover engaging the perimeter wall. The gasket is attached to a lower surface of a metal plate of the cover and extends circumferentially around the metal plate proximate to its perimeter edge. A valve, which is attached to and which extends through the metal plate, selectively allows passage of air through the metal plate. The valve fluidly couples the container to a vacuum generator to generate a partial pressure within the container, thereby sealingly engaging the gasket to the perimeter wall.

A lid assembly for a beverage container includes an upper adapter and a lower adapter. The lid assembly may move between a closed configuration and an open configuration by rotating the upper adapter relative to the lower adapter. In some examples, the upper adapter may include a puck that is inserted into a receiver at a bottom of the upper adapter, where the puck has a tab that contacts a stop on the lower adapter to prohibit rotational movement of the upper adapter relative to the lower adapter beyond a predetermined amount to provide tactile feedback to a user that the lid assembly is in an open configuration. The puck may be secured to the upper adapter using a magnetic force between an upper adapter magnet in the upper adapter and a puck magnet in the puck.

The present invention discloses a box, comprising: a box body; a box cover, wherein the box cover is covered at an opening of the box body, a limiting cylinder is formed on the bottom end of the box cover near an outer edge, and the bottom end of the box cover is provided with an annular clamping groove located at the outer side of the limiting cylinder; an elastic sealing ring which comprises: a top sealing ring, an inserting flange; a middle sealing cylinder, and the middle sealing cylinder is sleeved on the outer cylinder wall of the limiting cylinder; and a bottom sealing ring, and the outer edge of the bottom sealing ring is in compression sealing contact with the inner wall of the box body.