Food or edible material: processes – compositions – and products – Packaged or wrapped product – Package containing separate noncoated or laminated interior...
Patent
1993-01-14
1994-06-21
Weinstein, Steven
Food or edible material: processes, compositions, and products
Packaged or wrapped product
Package containing separate noncoated or laminated interior...
426118, 426395, 426398, 426410, 423230, 252190, 252192, 502411, 502400, B65B 5500, B65D 8100
Patent
active
053227018
ABSTRACT:
An absorbent packet for absorbing carbon dioxide at a rapid rate from a closed container, such as a package or can containing coffee and water vapor, including a porous envelope containing calcium oxide and a hydrating agent, such as silica gel with water adsorbed therein. The water vapor from the container permeates the envelope at a relatively rapid rate because of the affinity of silica gel for the water vapor in the container, and the silica gel becomes supersaturated and gives off water. The carbon dioxide from the environment also permeates the envelope because of its concentration outside of the envelope and because of the pressure gradient between the outside and inside of the envelope. The water given off by the supersaturated silica gel combines with the calcium oxide in the envelope to form calcium hydroxide. The carbon dioxide and the calcium hydroxide react to produce calcium carbonate and water. Any other suitable metal oxide may be used, including but not limited to the oxides of sodium, potassium, magnesium and barium. Also other hydrating agents may be used instead of silica gel.
REFERENCES:
patent: 1333524 (1920-03-01), Wilson
patent: 1441696 (1923-01-01), McNeil
patent: 1872026 (1932-08-01), Carey
patent: 2322206 (1943-06-01), Gardenier
patent: 2430663 (1947-11-01), Behrman
patent: 2470214 (1949-05-01), Egan
patent: 2470214 (1949-05-01), Egan
patent: 2997445 (1961-08-01), Nuhn
patent: 3489693 (1970-01-01), Bovard
patent: 3519384 (1970-07-01), Engel et al.
patent: 3557011 (1971-01-01), Colombo et al.
patent: 3761289 (1973-09-01), Wolf
patent: 3847837 (1974-11-01), Boryta
patent: 3990872 (1976-11-01), Cullen
patent: 4079152 (1978-03-01), Bedrosian et al.
patent: 4166807 (1979-09-01), Komatsu et al.
patent: 4192773 (1980-03-01), Yoshikawa et al.
patent: 4366179 (1982-12-01), Nawata et al.
patent: 4407723 (1983-10-01), MacGregor
patent: 4552767 (1985-11-01), Saleeb et al.
patent: 4579223 (1986-04-01), Otsuka et al.
Cullen John S.
Vaylen Nicholas E.
Gastel Joseph P.
Multiform Desiccants, Inc.
Weinstein Steven
LandOfFree
Carbon dioxide absorbent packet and process does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Carbon dioxide absorbent packet and process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carbon dioxide absorbent packet and process will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2219534