公开(公告)号：US3581514A

公开(公告)日：1971-06-01

申请号：US3581514D

申请日：1969-04-21

Applicant: SMITH CORP A O

Inventor： HAMERSKI FRANK D ,  OVERBYE VERN D

IPC: A01F25/16 ,  F25D17/06

CPC classification number: A01F25/16

Abstract: A sealed storage structure such as a silo having a breather system including a flexible breather bag or equivalent pressurebalancing member. To increase the pressure-balancing capacity of the breather system, a gas cooler assembly is provided. Conduit members connect the cooler assembly to the interior of the silo and to a blower unit to provide a closed gas recirculation path. The cooler and blower are controlled by a thermostat switch within the silo, which switch is set to initiate the recirculation operation at a predetermined maximum temperature and to similarly terminate operation at a predetermined minimum temperature.