Method and apparatus for shipping super frozen materials

• US 6,003,322 A
• Filed: 10/20/1997
• Issued: 12/21/1999
• Est. Priority Date: 10/20/1997
• Status: Expired due to Term

• Current Assignee: CWS Group LLC
• Original Assignee: Coldwave Systems, LLC
• Inventors: Graham, B Eric
• Primary Examiner(s): Kilner, Christopher B.
• Application Number:
  US08/954,644
• Time in Patent Office: 792 Days
• Field of Search: 62/52.1, 62/53.2, 62/384, 62/385, 62/388, 62/239
• US Class Current: 62/52.1
• CPC Class Codes: F25D 2201/126 of cellular type
• CPC Class Codes: F25D 29/001 for cryogenic fluid systems
• CPC Class Codes: F25D 3/105 Movable containers

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.

Claims

1. An apparatus for shipping product disposed at a super-frozen temperature of less than or equal to about -50 degrees C., the apparatus comprising:

a container having walls insulated to an r-value greater than or equal to about 20;

a spray head disposed within said container, said spray head adapted to spray cryogenic fluid within said container;

at least one coupling disposed in fluid communication with said spray head, said at least one coupling adapted for alternate engagement and disengagement with an external cryogenic fluid supply;

said container being selectively sealable to form a self-contained, dry module;

said container being adapted to receive therein product disposed at the super-frozen temperature and to maintain the product at the super-frozen temperature during shipment thereof.

2. The apparatus of claim 1 which is a commercially available insulated shipping container to which is added additional insulation, and a cryogenic dispersal system.

3. The apparatus of claim 1, wherein said shipping container further comprises poly-foam insulation, a CO₂ sprayhead, a liquid CO₂ dispersal system and door seals wherein materials or products contained therein are maintainable at or below the super-frozen temperature.

4. The apparatus of claim 3, which further comprises multiple CO₂ sprayheads and a temperature regulation system having one or more temperature probes connected to switches and valves which control the dispersal of CO₂.

20. The apparatus of claim 1, wherein in said walls are insulated to an r-value greater than or equal to about 30.

21. The apparatus of claim 1, wherein said container is sized and shaped to standard ISO container dimensions.

5. A method for shipping product disposed at a super-frozen temperature of less than or equal to about -50 degrees C., the method comprising the steps of:

(a) providing product disposed at the super-frozen temperature;

(b) providing a modular shipping container adapted to maintain the product at the super-frozen temperature, the modular shipping container having;

walls insulated to an r-value greater than or equal to about 20;

a spray head disposed therein;

at least one coupling disposed in fluid communication with the spray head;

said container being selectively sealable to form a self-contained, dry module;

(c) placing the product into the modular shipping container;

(d) engaging an external cryogenic fluid supply with the at least one coupling, wherein cryogenic fluid is communicated from the external cryogenic fluid supply to the spray head and discharged into the container and onto the product;

(e) disengaging the external cryogenic fluid supply from the at least one coupling;

(f) sealing the container to form a self-contained, dry module; and

(g) transporting the modular shipping container to a destination wherein the product is provided at the destination at the super-frozen temperature.

6. The method of claim 5 comprising:

a self contained shipping container comprises a commercially available insulated container with additional insulation and a cryogenic dispersal system;

placing super-frozen product or material to be shipped in the self contained container;

shipping self-contained shipping container with super-frozen product or material to a remote venue.

7. The method of claim 5, in which the super frozen product or material is glazed with water prior to shipment.

22. The method of claim 5, wherein the modular shipping container has a size and shape of one or more modular ISO shipping containers and the modular shipping container is transported on board a vehicle adapted to receive one or more modular ISO shipping containers thereon.

8. A portable, modular apparatus for freezing and storing fish at a super-frozen temperature of less than or equal to about -50 degrees C., to preserve the fish at sushi-quality, the apparatus comprising:

one or more containers;

a refrigeration system disposed integrally with said one or more containers, said refrigeration system being adapted to freeze product disposed within said apparatus to the super-frozen temperature;

said apparatus adapted for being shipped to a destination for deployment at the destination to freeze and store fish at the super-frozen temperature, and for being subsequently re-shipped to an other destination for re-deployment.

9. The apparatus of claim 8, wherein said one or more containers further comprises a first section adapted for freezing the fish and a second section adapted for storing the fish at the super-frozen temperature.

10. The apparatus of claim 9, further comprising:

walls insulated to an r-value greater than about 20;

a plurality of fans to disperse the cryogenic fluid emitted from said spray head; and

a control system to regulate the temperature during freezing and during storing.

17. The apparatus of claim 9, wherein said refrigeration system further comprises:

a cryogenic fluid dispersal system having a spray head disposed within at least one of said first section and said second section, said spray head adapted to spray cryogenic fluid within said at least one of said first section and said second section.

23. The apparatus of claim 8, wherein said one or more containers have a size and shape of a modular ISO shipping container, and said apparatus is adapted for being shipped to a destination on board a vehicle adapted to receive modular ISO containers thereon.

11. A method for freezing and storing fish at a super-frozen temperature of less than or equal to about -50 degrees C., to preserve the fish at sushi-quality, the method comprising the steps of:

(a) providing a modular, portable apparatus comprising;

one or more containers;

a refrigeration system disposed integrally with said one or more containers, said refrigeration system being adapted to freeze product disposed within said apparatus to the super-frozen temperature;

said portable apparatus adapted for being shipped to a destination for deployment at the destination to freeze and store fish at the super-frozen temperature, and for being subsequently reshipped to an other destination for re-deployment;

the one or more containers having a first section adapted for freezing the fish and a second section adapted for storing the fish at the super-frozen temperature;

(b) loading the fish into the first section and retaining the fish therein until the fish reaches the super-frozen temperature; and

(c) transferring the fish from the first section to the second section, wherein the fish are maintained at the super-frozen temperature in a substantially preserved state suitable for subsequent consumption as sushi.

12. The method of claim 11, wherein the refrigeration system further comprises:

a cryogenic fluid dispersal system having a spray head disposed within at least one of said first section and said second section, said spray head adapted to spray cryogenic fluid within said at least one of said first section and said second section.

13. The method of claim 12, wherein the container further comprises:

a plurality of fans to disperse the cryogenic fluid emitted from said spray head; and

a control system to regulate the temperature during the freezing and during the storing processes.

14. The method of claim 11, further comprising the step of (d) glazing the fish with water after said freezing step (b).

24. The method of claim 11, wherein the one or more containers have a size and shape of a modular ISO shipping container, and said portable apparatus is adapted for being shipped to a destination on board a vehicle adapted to receive modular ISO containers thereon.

15. A method for providing sushi-quality fish harvested at a first location, to a distinct second location, said method comprising the steps of:

(a) providing a portable, modular freezer adapted to freeze fish to a super-frozen temperature of less than or equal to about -50 degrees C.;

(b) transporting the modular freezer to the first location;

(c) loading the harvested fish into the modular freezer and retaining the fish within the modular freezer until the fish reaches the super-frozen temperature;

(d) providing a modular shipping container adapted to maintain the fish at the super-frozen temperature;

(e) transferring the fish from the modular freezer to the modular shipping container; and

(f) shipping the modular shipping container to the second location wherein the fish are provided at the second location at the super-frozen temperature in a substantially preserved state suitable for use as sushi.

16. The method of claim 15, wherein the modular freezer further comprises:

a first compartment for freezing the fish to the super-frozen compartment, and a second compartment for storing the fish at the super-frozen temperature, modular freezer having a cryogenic fluid dispersal system including

fans linked to a temperature monitoring and control system;

said loading step (c) further comprising placing fish in the first freezing compartment until the fish reaches the super-frozen temperature, and transferring the super-frozen fish to the second compartment for storage.

25. The method of claim 15, wherein the modular freezer has a size and shape of one or more modular ISO shipping containers and the modular shipping container is shipped to the second location on board a vehicle adapted to receive one or more modular ISO shipping containers thereon, the modular shipping container has a size and shape of one or more modular ISO shipping containers.

18. A method for providing a substantially continuous stream of sushi-quality frozen fish from one or more first locations, to a distinct second location, said method comprising the steps of:

(a) providing a portable, modular freezer adapted to freeze fish to a super-frozen temperature of less than or equal to about -50 degrees C., the modular freezer adapted for being sequentially transported to various ones of the one or more first locations;

(b) transporting the modular freezer to one of the one or more first locations;

(c) providing a plurality of modular shipping containers at the one or more first locations, each one of the plurality of modular shipping containers being adapted to maintain the fish at the super-frozen temperature, and having a size and shape for retaining a load of about 20 metric tons or less of fish therein;

(d) loading the harvested fish into the modular freezer and retaining the fish within the modular freezer until the fish reaches the super-frozen temperature, and transferring the super-frozen fish from the modular freezer to one or more of the plurality of modular shipping containers;

(e) shipping the one or more modular shipping containers as they are loaded, to the second location; and

(f) repeating said loading step (d) and said shipping step (e), wherein a substantially continuous stream of fish is provided to the second location at the super-frozen temperature in a substantially preserved state suitable for use as sushi, in increments of about 20 metric tons or less.

19. The method of claim 18, further comprising the steps of:

(g) transporting the modular freezer and a plurality of the shipping containers to an other of the one or more first locations; and

(h) reiterating said loading step (d) and said shipping step (e).

26. The method of claim 18, wherein the portable, modular freezer and the plurality of modular shipping containers have a size and shape of one or more modular ISO shipping containers, and the one or more modular ISO shipping containers are shipped on board a vehicle adapted to receive one or more modular ISO shipping containers thereon.