Transportable container, charger system, method and kit for generation of carbon dioxide snow block in-situ within the transportable container for preservation of items stored there within

Patent metadata

Field	Value
Publication number	US-11248838-B2
Application number	US-202016895688-A
Country	US
Kind code	B2
Filing date	Jun 8, 2020
Priority date	Jul 11, 2016
Publication date	Feb 15, 2022
Grant date	Feb 15, 2022

Abstract

This invention relates to a novel kit, transportable apparatus and method for generating in-situ CO2 snow block within the apparatus. An item such as a biological sample can be stored and transported within the same apparatus that is employed for creating the CO2 snow block. The apparatus is capable of preserving the sample during transport. The invention also includes a specially designed CO2 snow charger system including a charger and meshed conduit. The charger system is operated in accordance with the methods of the present invention to create the in-situ CO2 snow block within a container that can be also used for transport.

First claim

The invention claimed is:

1. A carbon dioxide (CO2) snow-making kit for charging CO2 and generating CO2 snow block in-situ within a container, comprising:
a container comprising an interior volume defined by an internal meshed conduit volume, and a snow chamber into which CO2 snow block is configured to be generated and stored, said interior volume further surrounded by multiple container walls;
the internal meshed conduit volume configured to receive a meshed conduit;
said meshed conduit comprising porous openings sufficient for gas to pass through, but for the CO2 snow block to remain substantially within the snow chamber; and
a CO2 snow charger operably or integrally connected to or penetrated through the meshed conduit, the CO2 snow charger configured to selectively direct CO2 fluid into the snow chamber, the snow charger further comprising one or more openings in fluid communication with the snow chamber.

2. The kit of claim 1 , wherein the snow chamber solely occupies the internal meshed conduit volume.

3. The kit of claim 1 , wherein the snow chamber at least partially surrounds the meshed conduit, and further wherein the CO2 snow charger connects to or extends through the meshed conduit such that a nozzle of the CO2 snow charger is oriented towards the snow chamber.

4. The kit of claim 1 , wherein the CO2 snow charger creates a sealed connection with the meshed conduit but an unsealed connection with the container.

5. The kit of claim 1 , wherein the container comprises an opening through which a portion of the CO2 snow charger extends, and through which gas can vent.

6. The kit of claim 1 , wherein the interior volume of the container comprises an internal product storage volume, said internal product storage being separate and distinct from the snow chamber.

7. A method for in-situ charging carbon dioxide (CO2) snow block within a container, comprising the steps of:
supplying CO2 fluid into a CO2 snow charger operably or integrally connected to a meshed conduit, said mesh conduit located within an interior of the container;
selectively directing the CO2 fluid into a snow chamber;
generating in-situ CO2 snow particles and gas in the snow chamber; and
passing the gas through the meshed conduit.

8. The method of claim 7 , further comprising the step of introducing the CO2 snow charger into an opening of the container without sealing the CO2 snow charger to the container.

9. The method of claim 7 , further comprising packing the CO2 snow particles to form a substantially CO2 snow block.

10. The method of claim 7 , further comprising accumulating the in-situ CO2 snow particles within the snow chamber without substantial migration or passage of the CO2 snow particles into an internal product storage volume.

11. The method of claim 7 , further comprising generating information relating to the in-situ charging of CO2 snow particles, said information to be (i) incorporated into a unique identifier for the container; or (ii) transferred to a database.

12. A method for assembling a carbon dioxide (CO2) snow charging system at a site for in-situ generation of CO2 snow block in a container, comprising:
providing a CO2 source;
providing a container, the container further comprising an internal product volume and a snow chamber;
providing a meshed conduit;
inserting the meshed conduit into the container;
providing a CO2 snow charger;
operably connecting or penetrating a first end of the CO2 snow charger to or through the meshed conduit;
configuring the CO2 snow charger to direct CO2 fluid into the snow chamber, but not the internal product volume; and
operably connecting a second end of the CO2 snow charger to the CO2 source.

13. The method of claim 12 , further comprising operably connecting the first end of the CO2 snow charger to the meshed conduit without creating a sealed connection to the container.

14. A carbon dioxide (CO2) snow charger system adapted to produce CO2 snow block in a snow chamber, comprising:
a meshed conduit, said meshed conduit comprising porous openings sufficient for CO2 off-gas to pass through the porous openings, but substantially block particles of the CO2 snow block; and
a CO2 snow charger operably or integrally connected to or penetrated through the meshed conduit, said CO2 snow charger configured to selectively direct CO2 fluid into the snow chamber.

15. The snow charger system of claim 14 , wherein a nozzle of the CO2 snow charger is oriented towards an internal meshed conduit volume.

16. The snow charger system of claim 14 , wherein a nozzle of the CO2 snow charger is oriented away from an internal meshed conduit volume.

17. An apparatus configured for storing, preserving or transporting one or more items, comprising:
a container characterized by an interior volume comprising a first region and a second region, wherein the first region is an internal product storage volume, and the second region is a snow chamber into which CO2 snow is stored, said container further comprising multiple insulated container walls at least partially surrounding the first region and the second region;
a meshed conduit or a product holder located within the interior container volume;
wherein substantially all of the CO2 snow is adapted to occupy the snow chamber, whereby said CO2 snow is confined within the snow chamber;
the internal product storage volume separate and distinct from said snow chamber, the internal product storage volume adapted to receive one or more items for storage, preservation and/or transport.

18. The apparatus of claim 17 , wherein the snow chamber is located within the meshed conduit or the product holder.

19. The apparatus of claim 17 , wherein the interior volume of the container consists essentially of a snow chamber and an internal product storage volume.

20. The apparatus of claim 17 , wherein the snow chamber is situated external to the internal product storage volume, said internal product storage volume located within the meshed conduit or the product holder.

21. The apparatus of claim 17 , further comprising a unique identifier that is configured to embed container identification information therein, said container identification information retrievable by reading said unique identifier.

22. The apparatus of claim 17 , said walls comprising a getter material locating therewithin, wherein said getter material maintains a vacuum and an insulation level and is suitably compatible with said CO2 snow.

23. The apparatus of claim 17 , further wherein the snow chamber is characterized by an absence of a foam-filled material or absorbent.

Assignees

• Zhou Ying
• Bursae Ranko
• Sever Robert R
• Praxair Technology Inc

Inventors

• Zhou Ying
• Bursae Ranko
• Sever Robert R

Classifications

• A01N1/145

  Stationary or portable vessels generating cryogenic temperatures, e.g. liquid nitrogen baths · CPC title

• C01B32/55

  Solidifying · CPC title

• F25J2205/20

  using solidification of components · CPC title

• F25J1/0027 Primary

  Oxides of carbon, e.g. CO2 · CPC title

• B65D81/3818

  formed with double walls, i.e. hollow · CPC title