Valve for sealing an evacuation port of a container
AssigneeAvery Dennison Corporation
InventorsRonald Newrones, Richard L. Sandt, Ronald F. 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).
Claims12
A valve for sealing an evacuation port in a port area of a wall structure of a container, the 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;
- a gasket for supporting the casing wherein the gasket is between the wall structure and the casing;
- gas-releasing openings in the casing and gasket, through which gas exits from the chamber when the shell portion is in the opened condition;
- and
- a port-sealing adhesive aligned over the evacuation port for adhering the shell portion to the port area when it is in the closed condition, to thereby seal the evacuation port.
Dependencies are inferred from the claim text.