System for packaging

Claim 1

A CONSUMER PACKAGE OF FOOD ROTECTED FROM LOSS OF FLAVOR BY A PACKAGING GAS, SAID PACKAGING GAS BEING PREPARED BY CRYOGENICALLY PURIFYING NITROGEN, AND ADDING A MINOR AMOUNT OF HYDROGEN THERETO TO PROVIDE A MIXTURE CONSISTING OF NOT LESS THAN 3% NOR MORE THAN 5% HYDROGEN AND FROM 95% TO 97% CRYOGENICALLY PURIFIED NITROGEN, SAID GAS BEING CONFINED IN CONTACT WITH THE FOOD BY GAS IMPERMEABLE SHEET MATERIAL IMPARTING STRUCTURAL STRENGTH TO THE PACKAGE; CATALYST PARTICLES CONSISTING OF A SORPTIVE CARRIER AND FROM 0.1% TO 1% NOBLE METAL OF THE GROUP CONSISTING OF PALLADIUM, PLATINUM AND MIXTURES THEREOF DEPOSITED IN SAID SORPTIVE CARRIER, SAID PARTICLES HAVING A SIZE RANGE FROM ABOUT 200 TO ABOUT 400 MICRONS; A THIN FILM OF PLASTIC PROTECTING SAID CATALYST PARTICLES FROM CONTACT WITH THE FOOD, SAID THIN FILM BEING BONDED TO THE INNER SURFACE OF THE GAS IMPERMEABLE SHEET AT SPACED BONDING ZONES DEFINING SMALL COMPARTMENTS FOR SAID CATALYST PARTICLES, WHEREBY EACH CATALYST PARTICLE IS MAINTAINED WITHIN ITS SMALL COMPARTMENT EVEN DURING LURCHING OF THE FOOD PACKAGE DURING TRANSPORTATION THEREOF, SAID THIN PLASTIC FILM PERMITTING THE DIFFUSION OF OXYGEN, NITROGEN AND HYDROGEN TO, FROM AND BETWEEN THE ZONE ADJACENT THE CATALYST PARTICLES AND THE ZONE ADJACENT THE FOOD, WHEREBY ANY RESIDUAL OXYGEN SORBED ON THE PACKAGED FOOD DIFFUSES TO THE CATALYST PARTICLE FOR CONVERSION TO WATER VAPOR.