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US 2020/0393205 A1Published application
Duplex Thermal Transfer Pack
OwnerBryan E. Kilbeyinventor
Life of this patent
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Abstract
The present invention comprises a duplex thermal transfer pack. The pack includes a large bag containing many smaller sub bags. Each sub bag contains plain water. The volume within the large bag but outside the sub bags contains a second substance. This second substance freezes with a consistency akin to crushed ice or packed snow. The second substance allows the thermal transfer pack to remain malleable even when its contents are frozen.
Claims20
A duplex thermal transfer pack, comprising:
- (a) a sealed bag having an interior,
- (b) a plurality of sub bags contained within said interior of said sealed bag;
- (c) wherein each of said sub bags contains plain water.
- (d) an interstitial volume within said interior of said sealed bag but outside said sub bugs;
- (e) wherein said interstitial volume is filled with a solid-pliable heat transfer medium;
- and
- (f) an indicating area of thermochromic material on each of said sub bags.
4 more elements
A duplex thermal transfer pack, comprising:
- (a) a sealed bag having an interior;
- (b) a plurality of sub bags contained within said interior of said scaled bag;
- (c) wherein each of said sub bags contains plain water;
- (d) a solid-pliable heat transfer medium contained within said interior of said sealed bag but outside of said sub bags;
- and
- (e) wherein each of said sub bags includes an indicating area of thermochromic material, wherein said indicating area is configured to change in appearance when said plain water within said each of said sub bags has frozen.
3 more elements
Dependencies are inferred from the claim text.