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Dry ice cooling jacket

  • US 3,950,789 A
  • Filed: 07/22/1975
  • Issued: 04/20/1976
  • Est. Priority Date: 07/22/1975
  • Status: Expired due to Term
First Claim
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1. A garment for cooling the body of a person wearing the garment, the garment having an inner surface which faces the body of the person when the garment is worn and which defines a space between the garment and a portion of the body, a pocket on the inner surface of the garment for holding dry ice, the pocket being provided with means for venting gaseous carbon dioxide through the pocket to said space as the dry ice sublimates whereby gaseous carbon dioxide in said space cools the body by convection.

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