Patent ID: 7540168
Filing Date: 2009-06-02
Classification: A01N,F25D

Abstract:
1. A cryogenic storage system comprising: a tank having an interior and an open top, an upper turntable and a lower turntable independently rotatably mounted in said interior of said tank with said upper turntable being positioned above said lower turntable, a plurality of storage unit containers, each storage unit container being square in cross-section and having an open top and an elongated slot along each side of said storage unit container such that each slot extends parallel to a top edge of said storage unit container, each turntable having a plurality of compartments, each compartment adapted to receive one storage unit container, a storage unit container extraction tool for selectively engaging and moving one storage unit container, said extraction tool comprising an elongated rod, a base mounted to one end of said rod and dimensioned to engage said open top, a latch mounted to said base and rotatable between an unlocked position in which said base and a selected storage unit container are separable from each other, and a locked position in which portions of said latch extend through at least two of said slots in said selected storage unit container and secures said selected storage unit container to said base by sandwiching a portion of the selected storage unit container between the base and the latch portions.