Gassing rail and gas port for food packaging

Abstract

A gassing rail apparatus is provided to be used in a food packaging conveyor system. The gassing rail apparatus includes a rail top, a first and second gas port, an insert assembly located below the rail top, a gassing element located below the insert assembly, a rail bottom located below the gassing element, wherein the gas flowing through a slit in the insert assembly produces a high speed accelerated flow, and a flow of laminar gas is blocked by the rail bottom and forces the laminar gas flow laterally within the layer of gas resistant media of the gassing element with the effect of surrounding the accelerated gas exiting the gas distribution slot, wherein the accelerated gas tends to draw in laminar gas and not undesirable air, and the first gas source provides about 15-25% of the gas provided to the gassing rail apparatus and the second gas source provides about 75-85% of the gas provided to the gassing rail apparatus. In another embodiment, a single gas port is provided.

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