Abstract

A system for dispensing packages from an underground storage facility is disclosed, more specifically to disclose systems for handling packages using gravity and buoyancy. An underground storage system comprises a storage facility and at least one open air fluid column. The storage facility has an above ground portion connected to a hollow underground portion with a bottom. A helical ramp extends from the above ground portion to the bottom of the storage facility. Devices are located adjacent to the helical ramp to dispense packages to the helical ramp. A conveyor is located at the bottom of the underground portion to receive packages from the helical ramp. An airlock is located adjacent to the bottom of the underground portion and is connected to a conveyor. Packages are discharged from the storage facility via the airlock.