Abstract: A nozzle for accelerating filling a container with gas up to a required gas pressure including a barrel having venturi openings in a side of said barrel and a sleeve that, in one position uncovers the tunnels and in another position, closes off the openings. In another version the nozzle further includes a pressure chamber, having a wall coupled to the sleeve. In a contracted position the sleeve is moved by the wall of the chamber to close off the tunnels. In another position of the wall where the chamber is in an expanded position the tunnels are so as to increase the rate of flow.

Abstract: An apparatus and method for storing boxes of perishable products and providing that refrigerated air flows relatively uniformly through the stack. The apparatus is an elongated inflatable bag divided into sections by baffles, each section being inflatable independent of the other sections. The bag forms a roof over a corridor between two rows of stacks and a panel encloses one end of the corridor opposite the opposite end which is closed off by the cargo wall. Refrigerated air forced into the corridor at floor level at one end of the corridor is diverted through the stacks of boxes.