Abstract: A cryogenic storage device includes a storage tank having an inner tank, an intermediate tank and an outer tank spaced apart from each other so as to define a fluid reservoir for holding a cryogenic liquid and a thermal insulative space bounding the fluid reservoir. A top cover closes the open top. An inlet supplies the cryogenic liquid to the fluid reservoir. A fluid sensor is configured to detect a pressure within the cryogenic storage device and is removably disposed within the fluid reservoir so as to allow an ice formation to be thawed without having to thaw the entire cryogenic storage device.

Abstract: A cryogenic storage tank having a housing which defines an interior chamber open at its top. A lid overlies the housing and storage chamber and an access opening is formed in the lid. An access door selectively closes the access opening while a carousel is rotatably mounted about an axis within the storage chamber. An actuator is accessible exteriorly of the lid and housing for rotating the carousel.

Abstract: A cryogenic storage container having a tank with an interior and an open top. At least two and preferably three trays are independently rotatably mounted within the interior of the housing so that an upper tray is positioned above one or more lower trays. Each tray has a plurality of compartments and each compartment is adapted to receive a source unit container. At least one cold working area is formed on the upper tray while an extraction tool selectively engages and moves stored unit containers from any of the trays and to the cold working area.

Abstract: A cryogenic storage device is disclosed having a lower housing part adapted to contain a cryogenic storage tank. An upper housing part is detachably secured to the upper end of the lower housing part so that the upper housing part covers and overlies the cryogenic storage tank. A lid in the upper housing part provides access to the top of the cryogenic storage tank. An electronic circuit arrangement which controls both a fill solenoid for the storage tank as well as an exhaust fan is contained wholly within the upper housing part. Consequently, upon detachment of a single fluid connection between the valve means and the upper housing part and a fill line from the cryogenic storage tank, the upper housing part can be detached from the lower housing part and the storage tank for shipment and/or servicing.