US Patent 12084256 Sealing device

A sealing device for sealing a cover on a mouth of a container, includes a main machine including a housing, a vacuum pump, an air extraction channel, an air inlet channel and a control valve for controlling open and close of the air inlet channel. The housing includes a sleeve joint part defining a first accommodating space adapted to the mouth. The vacuum pump is arranged in the housing and includes an air extraction port. The air extraction channel communicates the air extraction port with the first accommodating space and the air inlet channel communicates the first accommodating space with ambient air. The sealing device further includes an air duct which may be selectively connected to the housing and is respectively communicated with the air inlet channel and the air extraction channel. The sealing device can not only vacuum and seal jars, but also creates a vacuum in compression bags.