Selective degassing valve for containers of aromatic or...

Details Selective degassing valve for containers of aromatic or... Selective degassing valve for containers of aromatic or...

B - Operations, Transporting

65

D

B65D 81/26 (2006.01) B65D 33/01 (2006.01) B65D 51/16 (2006.01) B65D 77/22 (2006.01) B65D 81/20 (2006.01)

Patent

CA 2354727

A one-way degassing valve (4) for containers of aromatic product such as coffee and the like, comprising a valve body (5, 6), a valve element (12) and a filter (17), comprising a selective filter layer (21a), preferably consisting of activated charcoal, which allows the passage of low molecular weight gases, such as carbon dioxide, and retains high molecular weight gases that constitute the product's aroma, and an oxygen and CO2 adsorbing layer (21b), able to eliminate the residual oxygen present in the container and suitably reduce the amount of CO2.

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