Airtight storage container
A container has a seal valve 40 to seal a first opening 321, and a non-return valve 50 in a second opening 31, to allow air to flow out (e.g. gas from fermentation of coffee beans), preventing environmental air from being drawn into the storage chamber 23. Pressure relief valve 50 may be a duckbill...
Saved in:
Main Author | |
---|---|
Format | Patent |
Language | English |
Published |
16.08.2017
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Be the first to leave a comment!