| 摘要 |
<p>BREATHER BAG CONSTRUCTION FOR A SEALED STORAGE STRUCTURE An improved breather system for a sealed storage structure. The roof of the storage structure is provided with an opening and a generally cylindrical, vertically disposed, breather bag is located within the structure with the neck of the bag being sealed within the opening. A cable is attached to the inner surface of the bag at the lower end of the bag and extends upwardly through a series of vertically spaced tubular guides and exits through the neck of the bag to the exterior. Each of the tubular guides is connected to the inner surface of the bag by a series of cables. A storage sleeve can be mounted on the roof in communication with the opening. By pulling upwardly on the cable, the bag will be drawn upwardly out of the storage structure and into the storage sleeve to a location where the bag will not interfere with filling of the storage structure with a stored material. After filling, the bag can be released and the bag will expand and contract in accordance with pressure differentials between the atmosphere and the interior of the structure to thereby balance the pressure. The elongated vertical configuration of the bag provides a substantial increase in breather capacity over that of conventional breather bags.</p> |
