Degassing valve for aromatic products, such as coffee and simila

Receptacles – Closures – Vent in closure

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Details

220371, 426118, B65D 5116

Patent

active

055159940

ABSTRACT:
A one-way degassing valve (4) for aromatic products, such as coffee and the like, comprising a valve body (5,6), a valve element (12) and a selective type filter (17, 170), preferably consisting of activated charcoal which allows the passage of low molecular weight gases, such as carbon dioxide, and retains the high molecular weight gases that constitute the product's aroma.

REFERENCES:
patent: 3243071 (1966-03-01), Kimmel
patent: 3595467 (1971-07-01), Goglio
patent: 3799427 (1974-03-01), Goglio
patent: 3949934 (1976-04-01), Goglio
patent: 4000846 (1977-01-01), Gilbert
patent: 4134535 (1979-01-01), Barthels
patent: 4210255 (1980-07-01), Pan
patent: 4890637 (1990-01-01), Lamparter
patent: 4966780 (1990-10-01), Hargraves
patent: 4980132 (1990-12-01), Stinson

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