Patent ID: 7165581
Filing Date: 2007-01-23
Classification: A23L,A23V,B01F,B65B,Y10S

Abstract:
1. A system for preserving a perishable material sensitive to oxygen, comprising: a pressurized source of a first gas other than oxygen; a container for the perishable material, the container having a sealable lid, a passage including a one-way valve through the lid connected by a gas conduit to the pressurized source, and a mechanism for venting the container; and a simple shut-off valve in the gas conduit; wherein oxygen exposure to the perishable material in the container is diluted by at least one cycle of pressurizing the container with the first gas other than oxygen, and then venting the container and wherein the one-way valve system comprises a stem having an axis and an axial bore through the lid and a cross-bore from the axial bore, the cross-bore exiting the stern at a right angle to the axial bore, the cross-bore covered by a flexible sleeve over the outside diameter of the stem, such that gas introduced through the axial bore flexes the sleeve to enter the container, but gas within the container is prevented by the sleeve from exiting the container.