Hermetically sealed container, has cover inner sleeve cooperated with external sleeve of body with hermetic closing system that slides above external sleeve such that valve is opened to allow air inlet in container to break hermetic joint

摘要

The container (9) has a cover (20) fixed on an upper part of a container body (10) for closing an upper opening (11) of the body. An air-exhaust valve (30) is provided on an upper part of the cover above the body. An cover inner sleeve is cooperated with an external sleeve (12) of the body with a hermetic closing system that slides above the external sleeve such that the valve is opened to slide the cover outside the body to release air via the valve, and the valve is opened to allow the air inlet in the container to break a hermetic joint to allow the cover to be removed from the body.