Bag for storage and removal of oxygen
OwnerCarolyn Kay Jonsinventor
Life of this patent
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Abstract
A flexible bag for food storage includes an oxygen remover, a water impermeable membrane, a frangible seal, and walls having low oxygen transmission. The wall comprises two facing sheets, and at least one sheet is a multilayer sheet having an inner layer of polymer enabling the facing sheets to be joined by melt sealing at less than 95° C. The bag may be sealed at location other than the frangible seal. A machine-readable image (e.g. QR code) may direct a computer or phone to a video on the Internet that shows re-sealing the bag at a location separate from the frangible seal to isolate the storage region from air surrounding the bag.
Claims19
A flexible bag for food storage comprises two facing sheets forming the walls of a bag, each of the facing sheets having an oxygen transmission rate at 25° C. of less than 10 cm3/m2/day, and at least one of the facing sheets is a multilayer sheet having an inner layer of polymer enabling the facing sheets to be joined by melt sealing at less than 95° C.;
- wherein the two facing sheets are joined together along three adjacent edges to form a rectangular pouch, and the pouch is separated into inner and outer sections by a frangible seal affixing the two facing sheets;
- the inner section contains an oxygen remover, an optional oxygen indicator, a storage region with fillable volume between 0.35 L and 8.5 L, and a water impermeable membrane with oxygen transmission rate at 25° C. of more than 2000 cm3/m2/day separates the oxygen remover from the storage region.
A package comprising at least 4 storage bags and a sealing device;
- the storage bags comprise two facing sheets forming the walls of a bag, each of the facing sheets having an oxygen transmission rate at 25° C. of less than 10 cm3/m2/day, and at least one of the facing sheets is a multilayer sheet having an inner layer of polymer enabling the facing sheets to be joined by melt sealing at less than 95° C.;
- the sealing device comprises an elongated metal bar with a continuous sealing section that extends tangent to a plane over a length between 5 and 25 cm and an insulating component affixed to the metal bar that facilitates handling of the metal bar when hot, wherein the insulating component is made of material having a thermal conductivity less than 1 W/(m K).
Dependencies are inferred from the claim text.