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US 4,377,075 AGranted
Refrigerant and method for shipping perishable materials
AssigneeNew England Nuclear Corporation
InventorMichael S. Russo
Life of this patent
Estimating the term…
Abstract
A self-contained refrigerant package and method for shipment of a perishable or degradable product is described. The shipping package comprises an insulated container having therein a predetermined quantity of dry ice and a predetermined quantity of refrigerant gel that separates the product from the dry ice to prevent contact with the dry ice. The shipping package maintains the desired temperature range for periods in excess of 48 hours thus providing a safety factor for delays in shipment of such products.
Claims4
A method for shipping a degradable product, said method comprising:
- placing a predetermined quantity of dry ice in the bottom of an insulated container;
- sandwiching said product in a predetermined quantity of refrigerant gel, placing the refrigerant gel and sandwiched product on top of the dry ice in such a manner that the dry ice does not contact the product, and sealing the insulated container to provide a self-contained refrigerated environment for the product that will not have a temperature lower than about -20.degree. C. or higher than about 0.degree. C. for 48 hours or more.
Dependencies are inferred from the claim text.