Receptacles – Closures – Vent in closure
Patent
1994-06-16
1996-05-14
Scherbel, David
Receptacles
Closures
Vent in closure
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
Chin Randall E.
Scherbel David
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