Refrigerated blanket for cold product transport

Patent metadata

Field	Value
Publication number	US-10244781-B2
Application number	US-201815883344-A
Country	US
Kind code	B2
Filing date	Jan 30, 2018
Priority date	Mar 1, 2017
Publication date	Apr 2, 2019
Grant date	Apr 2, 2019

Abstract

Exemplary embodiments provide a flexible cooling blanket including a cooling layer assembly and a heat dissipating layer assembly. The cooling layer assembly includes a first set of rigid cooling coils connected to a second set of rigid cooling coils using a first flexible tube. The heat dissipating layer assembly includes a first set of rigid heat dissipating coils and a second set of rigid heat dissipating coils connected with a second flexible tube. The first and second flexible tubes extend across the folding seams of the blanket.

First claim

What is claimed is:

1. A flexible cooling blanket comprising:
a cooling layer assembly comprising:
a first fabric sheet;
a second fabric sheet, the second fabric sheet being operatively coupled to the first fabric sheet along a first folding seam;
a first set of rigid cooling coils disposed between the first and second fabric sheets on a first side of the first folding seam;
a second set of rigid cooling coils disposed between the first and second fabric sheets on a second side of the first folding seam; and
a first flexible tube connecting the first set of rigid cooling coils and the second set of rigid cooling coils, the first flexible tube extending across the first folding seam from the first side of the first folding seam to the second side of the first folding seam;

a heat dissipating layer assembly comprising:
a third fabric sheet;
a fourth fabric sheet, the fourth fabric sheeting being operatively coupled to the third fabric sheet along a second folding seam;
a first set of rigid heat dissipating coils disposed between the third and fourth fabric sheets on a first side of the second folding seam;
a second set of rigid heat dissipating coils disposed between the third and fourth fabric sheets on a second side of the second folding seam; and
a second flexible tube connecting the first set of rigid heat dissipating coils and the second set of rigid heat dissipating coils, the second flexible tube extending across the second folding seam from the first side of the second folding seam to the second side of the second folding seam;

wherein the cooling layer assembly and the heat dissipating layer assembly are operatively connected, and the second fabric sheet of the cooling layer assembly is disposed adjacent to the third fabric sheet of the heat dissipating layer assembly; and
a compressor operatively connected to the cooling layer assembly.

2. The flexible cooling blanket of claim 1 , wherein the first and second fabric sheets are resealably coupled to each other.

3. The flexible cooling blanket of claim 1 , wherein the third and fourth fabric sheets are resealably coupled to each other.

4. The flexible cooling blanket of claim 1 , wherein the first set of rigid cooling coils and the second set of rigid cooling coils are removably disposed between the first fabric sheet and the second fabric sheet.

5. The flexible cooling blanket of claim 1 , further comprising an insulating material between the second fabric sheet of the cooling layer assembly and the third fabric sheet of the heat dissipating layer assembly.

6. The flexible cooling blanket of claim 1 , further comprising a thermal reflective material between the second fabric sheet of the cooling layer assembly and the third fabric sheet of the heat dissipating layer assembly.

7. The flexible cooling blanket of claim 1 , wherein the compressor is disposed between the first and second fabric sheets.

8. The flexible cooling blanket of claim 1 , wherein the compressor is disposed outside a space formed between the first and second fabric.

9. The flexible cooling blanket of claim 1 , wherein a portion of a space between the first and second fabric sheets of the cooling layer assembly is devoid of cooling coils or a portion of a space between third and fourth fabric sheets of the heat dissipating layer assembly is devoid of heat dissipating coils.

10. The flexible cooling blanket of claim 1 , wherein at least one of the first set of rigid cooling coils or the second set of rigid cooling coils is connected to at least one of the first set of heat dissipating coils or the second set of heat dissipating coils by a third flexible tube.

11. The flexible cooling blanket of claim 1 , wherein the second fabric sheet or the third fabric sheet is formed of a thermal insulating material.

12. A method for assembling a flexible cooling blanket, the method comprising:
forming a cooling layer assembly by operatively coupling a first fabric sheet and a second fabric sheet along a first folding seam;
disposing a first set of rigid cooling coils between the first and second fabric sheets on a first side of the first folding seam;
disposing a second set of rigid cooling coils between the first and second fabric sheets on a second side of the first folding seam;
connecting the first set of rigid cooling coils and the second set of rigid cooling coils using a first flexible tube, wherein the first flexible tube extends across the first folding seam from the first side of the first folding seam to the second side of the first folding seam;
forming a heat dissipating layer assembly by operatively coupling a third fabric sheet and a fourth fabric sheet along a second folding seam;
disposing a first set of heat dissipating coils between the third and fourth fabric sheets on a first side of the second folding seam;
disposing a second set of heat dissipating coils between the third and fourth fabric sheets on a second side of the second folding seam;
connecting the first set of heat dissipating coils and the second set of rigid heat dissipating coils using a second flexible tube, wherein the second flexible tube extends across the second folding seam from the first side of the second folding seam to the second side of the second folding seam;
operatively connecting the cooling layer assembly and the heat dissipating layer assembly;
disposing the second fabric sheet of the cooling layer assembly adjacent to the third fabric sheet of the heat dissipating layer assembly; and
operatively connecting a compressor to the cooling layer assembly.

13. The method of claim 12 , wherein the first and second fabric sheets are resealably coupled to each other.

14. The method of claim 12 , wherein the third and fourth fabric sheets are resealably coupled to each other.

15. The method of claim 12 , wherein the first set of rigid cooling coils and the second set of rigid cooling coils are removably disposed between the first fabric sheet and the second fabric sheet.

16. The method of claim 12 , further comprising disposing an insulating material between the second fabric sheet of the cooling layer assembly and the third fabric sheet of the heat dissipating layer assembly.

17. The method of claim 12 , further comprising disposing a thermal reflective material between the second fabric of the cooling layer assembly and the third fabric sheet of the heat dissipating layer assembly.

18. The method of claim 12 , wherein the compressor is disposed between the first and second fabric sheets.

19. A method for using a flexible cooling blanket for cooling items in a delivery vehicle, the method comprising:
forming a cooling layer assembly by operatively coupling a first fabric sheet and a second fabric sheet along a first folding seam;
disposing a first set of rigid cooling coils between the first and second fabric sheets on a first side of the first folding seam;
disposing a second set of rigid cooling coils between the first and second fabric sheets on a second side of the first folding seam;
connecting the first set of rigid cooling coils and the second set of rigid cooling coils using a first flexible tube, wherein the first flexible tube extends across the first folding seam from the first side of the first folding seam to the second side of the first folding seam;
forming a heat dissipating layer assembly by operatively coupling a third fabric sheet and a fourth fabric sheet along a second folding seam;
disposing a first set of heat dissipating coils between the third and fourth fabric sheets

Assignees

• Walmart Apollo Llc

Inventors

• Cantrell Robert
• Atchley Michael Dean

Classifications

• F28D2021/0042

  for foodstuffs · CPC title

• F25B39/02

  Evaporators · CPC title

• A47G9/0215

  with cooling or heating means (electric blankets H05B3/34) · CPC title

• A23B4/06

  Freezing; Subsequent thawing; Cooling · CPC title

• B32B2509/10

  Refrigerators or refrigerating equipment · CPC title