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US 12,560,366 B2Granted
Dry ice containing shippers
AssigneePraxair Technology, Inc.
InventorsRobert R. Sever, Ying Zhou, Ranko Bursac, Amitabh Gupta
Life of this patent
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Abstract
Dry ice shippers with unique structural features designed to deliver optimized performance for preserving one or more perishable items in a presence of dry ice during transport are provided. The improved dry ice shippers exhibit superior properties that overcome the performance limitations of conventional dry ice shippers.
Claims5
An improved dry ice containing apparatus, comprising:
- a transportable shipper with a contents region volume, said contents region volume at least partially defined by insulative shipper walls that surround the contents region volume, said contents region volume apportioned between a first portion adapted for holding dry ice and a second portion adapted for holding one or more perishable items;
- one or more openings extending into the insulative shipper walls, each of said one or more openings in fluid communication with the contents region volume;
- said transportable shipper comprising a structure-defined by a total heat channel seam length designated as (LT), wherein LT is equal to a sum of a total insulation heat channel seam length (Lins) and a total opening heat channel seam length (Lopen);
- the improved dry ice containing apparatus further resulting in a normalized total heat channel seam length designated as (LN) and having a value of LT/LS, where LS is a sum of lengths of three primary external dimensions of the improved dry ice containing apparatus, wherein LN has a value that is 0.6 or less, but greater than 0.
1 more element
An improved dry ice containing apparatus, comprising:
- a transportable shipper with a contents region volume, said contents region volume at least partially defined by insulative shipper walls that surround the contents region volume, said contents region volume apportioned between a first portion adapted for holding dry ice and a second portion adapted for holding one or more perishable items;
- whereby the transportable shipper comprises a normalized loading ratio heat channel factor designated as (F) having a value that is 1.5 or less, but greater than 0.
Dependencies are inferred from the claim text.