Evacuatable container
AssigneeAvery Dennison Corporation
InventorsRoland Newrones, Richard Sandt, Ronald Sieloff
Life of this patent
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Abstract
A valve (20) is provided for sealing an evacuation port (16) in a port area (18) of a wall structure (12) of a container. The valve (20) comprises a casing (22) having a shell portion (30) which is deformable from an open condition, whereat the shell portion (30) forms a chamber (32) over the port area (18), and a closed condition, whereat the shell portion (30) contacts the port area (18). When the shell portion (30) is in its open condition, gas exits from the chamber (32) through gas-releasing holes (24) in the casing (22). When the shell portion (30) is deformed to its closed condition, a port-sealing adhesive (26) adheres to the port area (18) to thereby seal the evacuation port (16).
Claims30
A valve for sealing an evacuation port in a port area of a wall structure of a container, said valve comprising:
- a casing having a shell portion which is deformable from an open condition, whereat the shell portion forms a chamber over the port area, and a closed condition, whereat the shell portion contacts the port area;
- gas-releasing openings in the casing, through which gas exits from the chamber when the shell portion is in the opened condition;
- and
- a port-sealing adhesive adhering the shell portion to the port area when it is in the closed condition, to thereby seal the evacuation port.
An evacuating/sealing device for a container comprising a wall structure defining a receptacle and having an evacuation port, and a valve associated with the evacuation port and convertible from an open condition whereat gas can exit through the evacuation port and closed condition whereat the evacuation port is sealed, said device comprising:
- a housing which is positionable on the wall structure to form a vacuum chamber around the valve;
- and
- a plunger within the vacuum chamber which is movable between a retracted rest position, and a sealing position to convert the valve from its open condition to its closed condition.
Dependencies are inferred from the claim text.