Dry ice cooling jacket
First Claim
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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Abstract
A cooling jacket provides personal cooling for the wearer by convection as cold carbon dioxide gas circulates within the space between the inside surface of the jacket and the wearer'"'"'s body. Dry ice is held in pockets inside the jacket, aand each pocket is vented to permit the gas to diffuse through the pocket into the space. The bottom of the jacket is provided with a waist band which closes the space at the bottom and restrains the escape of the relatively heavy carbon dioxide gas.
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Citations
11 Claims
- 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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11. A jacket for cooling the upper body of a person wearing the jacket, the jacket having a front and a back and an inner surface which faces the body of the person when the jacket is worn and which defines a space between the jacket and the upper body, at least one pocket on the inner surface of the front of the jacket and at least one pocket on the inner surface of the back of the jacket, each of the pockets being adapted to hold dry ice and having means for venting gaseous carbon dioxide from the pocket into said space as the dry ice sublimates whereby gaseous carbon dioxide in said space cools the body by convection, means for channeling gaseous carbon dioxide upwardly within each pocket, and spacer means between the channeling means and each pocket to provide gas flow channels to permit carbon dioxide gas to flow downwardly between the channeling means and the pocket, the jacket having a lower end provided with means for tightening the jacket around the waist of the person whereby leakage of gaseous carbon dioxide from said space around the lower end of the jacket is substantially prevented.
Specification