Procedures for operating a vacuum to store perishables by controlling pressure and oxygen levels independent of each other as well as setting floor and ceiling operating parameters

Procedures for operating a vacuum to store perishables by controlling pressure and oxygen levels independent of each other as well as setting floor and ceiling operating parameters

A system and method for storing perishable items under controlled atmospheric conditions is provided. Total atmospheric pressure within a vacuum chamber containing the perishable items is reduced to below a predetermined total pressure limit. Oxygen partial pressure within the chamber is monitored....

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Hansen, Todd, Lobisser, G. Kyle, Lobisser, George Frank, Levi, Eric, Bothell, Justin Chase
Format: Patent
Sprache:eng
Schlagworte:
ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR
CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS
CONVEYING
HANDLING THIN OR FILAMENTARY MATERIAL
MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGINGARTICLES OR MATERIALS
PACKAGES
PACKAGING ELEMENTS
PACKING
PERFORMING OPERATIONS
STORING
TRANSPORTING
UNPACKING
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Beschreibung
Zusammenfassung:A system and method for storing perishable items under controlled atmospheric conditions is provided. Total atmospheric pressure within a vacuum chamber containing the perishable items is reduced to below a predetermined total pressure limit. Oxygen partial pressure within the chamber is monitored. When the Oxygen partial pressure falls below a predetermined lower Oxygen partial pressure limit, an Oxygen-containing gas is admitted to the vacuum chamber to raise the Oxygen partial pressure above the lower Oxygen partial pressure limit. Total atmospheric pressure within the chamber is also monitored. When the total atmospheric pressure reaches or exceed the predetermined total pressure limit, total pressure within the vacuum chamber is once again reduced below the predetermined total pressure limit.