Abstract:
A method and apparatus for freezing products or materials to a super-frozen state, storing them until shipment and shipping them in a super-frozen state. The apparatus consists of two self-contained, super-insulated containers. The first apparatus has at least two compartments, one for freezing and one for storage. The product or material to be frozen is placed in the freezing compartment and frozen to a super-frozen state and then transferred to the storage compartment where it is stored until shipment. The second apparatus is a self contained super-insulated shipping container. When shipment is to be effected, product or material is transferred from a storage compartment of the first apparatus in a super-frozen state to the second or shipping apparatus. The doors of the shipping apparatus are closed and the self-contained, super-insulated apparatus containing super-frozen product or material is shipped to a remote venue.
Abstract:
A refrigerated container and method capable of maintaining super frozen temperatures of about −50 degrees C. or less, includes container walls insulated to a value of at least about r-20, a cargo compartment configured for receiving cargo, and at least one refrigerant compartment configured for receiving refrigerant in the form of CO2 snow. The refrigerant compartment maintains the CO2 snow and vapor sublimating therefrom separately from the cargo compartment. The refrigerant compartment is located within the cargo compartment and configured to permit ambient atmosphere within the cargo compartment to contact at least three sides, and up to six sides, of the refrigerant compartment. The placement of the refrigerant compartment is also configured to generate a temperature gradient within the cargo compartment capable of generating convection therein, so that the super frozen temperatures are maintained within the cargo compartment without the use of external power sources.
Abstract:
An apparatus and method is provided for freezing, storing, and/or shipping products, in particular fish, at super-frozen temperatures. The apparatus includes a modular cryogenic cooler for removably interfacing with an insulated shipping container to maintain the interior of the container at a super-frozen temperature less than or equal to about −50 degrees C. Aspects of the method include a delivery method for providing an essentially unbroken delivery chain of frozen products from a location of freezing (to a super-frozen temperature) to a location of defrosting the products (e.g., a point of sale and/or consumption of the products).
Abstract:
A refrigerated container and method capable of maintaining super frozen temperatures of about−50 degrees C. or less, includes container walls insulated to a value of at least about r-20, a cargo compartment configured for receiving cargo, and at least one refrigerant compartment configured for receiving refrigerant in the form of CO2 snow. The refrigerant compartment maintains the CO2 snow and vapor sublimating therefrom separately from the cargo compartment. The refrigerant compartment is located within the cargo compartment and configured to permit ambient atmosphere within the cargo compartment to contact at least three sides, and up to six sides, of the refrigerant compartment. The placement of the refrigerant compartment is also configured to generate a temperature gradient within the cargo compartment capable of generating convection therein, so that the super frozen temperatures are maintained within the cargo compartment without the use of external power sources.