Thermally insulated bulk storage containers

Claim 1

A PRODUCT HANDLING DEVICE FOR LOW-TEMPERATURE STORAGE CONTAINER HAVING A TOP OPENING OFFSET FROM THE CONTAINER AXIS AND AFFORDING ACCESS INTO THE LARGE DIAMETER PORTION OF THE CONTAINER DEFINING A LOW TEMPERATURE STORAGE AREA, SAID DEVICE COMPRISING: A VERTICALLY DISPOSED COMPOUND SPINDLE EXTENDING LONGITUDINALLY OF THE CONTAINER AND JOURNALLED THERETO, SAID SPINDLE COMPRISING AT LEAST A PAIR OF CONCENTRALLY DISPOSED SHAFTS, THE OUTERMOST AND INNERMOST OF WHICH ARE SEPARATELY SUPPORTED AND JOURNALLED SO THAT SUCH SHAFTS ARE INDEPENDENT AND FREELY ROTATABLE, A PAIR OF VERTICALLY SPACED TRAYS IN SAID CONTAINER HAVING A DIAMETER SLIGHTLY LESS THAN THE DIAMETER OF SAID STORAGE AREA, EACH OF SAID TRAYS SEPARATELY ENGAGING ONE OF SAID SHAFTS TO BE ROTATED THEREBY AND A CUT-OUT SECTOR IN THE UPPERMOST OF SAID TRAYS TO PERMIT THE REMOVAL AND ADDITION OF PRODUCTS ON THE LOWER TRAY, WHEN SAID OFFSET OPENING AND SAID CUT-OUT SECTOR ARE IN REGISTRY, WHEREBY MAXIMUM UTILIZATION OF THE STORAGE AREA REMOTE FROM SAID OFFSET CONTAINER OPENING MAY BE EFFECTED AND MEANS FOR ROTATING THE SPINDLE SUCH THAT EACH OF THE CONCENTRIC SHAFTS ARE ROTATABLE INDEPENDENTLY OF THE OTHERS.