Pressure relief valve for a packaging container
US8887766B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2010 |
| Grant date | Nov 18, 2014 |
| Priority date | — |
| Expiry date | Mar 16, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7888
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The invention relates to a pressure relief valve (2) for a packaging container (1), comprising a base plate (3), which can be fastened on a wall of the packaging container and has a valve opening (9), also comprising 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 further comprising 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), wherein 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), this channel zone covering over the valve opening (9) and resting right up against the base plate in the closed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.