PRESSURE RELIEF VALVE FOR A PACKAGING CONTAINER

摘要

A pressure relief valve (2) for a packaging container (1) includes a base plate (3), which can be fastened on a wall of the packaging container and has a valve opening (9). The valve (2) also includes a membrane (4) which is arranged on the base plate (3) over the valve opening (9), wherein the membrane (4) has an adhesive on one side. The valve (2) also includes an intermediate layer (6), which is adhesively bonded to the adhesive-containing side of the membrane such that the membrane (4) has two remaining, parallel adhesive-containing peripheral zones for fastening on the base plate (3). The membrane (4) is arranged on the base plate by way of the intermediate layer (6) such that a channel zone (14) is formed on the base plate (3). The channel zone covers over the valve opening (9) and rests right up against the base plate in the closed position.

主权项

1. A pressure relief valve for a packaging container comprising:
a base plate (3) configured to be fastened on a wall of the packaging container and having a valve opening (9); a membrane (4) which is arranged on the base plate (3) over the valve opening (9), wherein the membrane (4) has an adhesive on one side; and an intermediate layer (6) which is adhesively bonded to the side of the membrane (4) that has the adhesive, such that the membrane (4) has two remaining edge zones which have adhesive for fastening to the base plate (3); wherein the membrane (4), in conjunction with the intermediate layer (6), are arranged on the base plate (3) in such a way that a channel zone (14) is formed on the base plate (3), wherein the intermediate layer (6) covers the valve opening (9) and rests up against the base plate (3) in a closed position, wherein a ratio (V) of an area of the intermediate layer (6) to an area of the valve opening (9) satisfies the equation 3≦V≦4, and wherein the valve opening (9) is formed from one of a group consisting of three, four, and six intersecting circular areas.