Enhanced personal cooling garment

Details Enhanced personal cooling garment Enhanced personal cooling garment

1999-04-12

2000-10-24

Calvert, John J.

Apparel

Body garments

Vests

2 69, 2 81, A41D 104

Patent

active

061347140

ABSTRACT:
An enhanced personal cooling garment has an inner layer and outer layer that define a confined space or bladder therebetween for containing liquid water. The inner and outer layer are thin materials that are impermeable to both air and liquid water yet permeable to water vapour. The garment is worn in a manner such that the innermost layer is in direct contact with the wearer's skin. The liquid water between the layers diffuses as vapour through the outer layer; it removes latent heat required for evaporation hence provides cooling to the human body. As both layers of the garment are permeable to water vapour, sweat produced by the wearer can diffuse through the innermost layer, where it will then condense into liquid. When worn beneath an air-cooling garment that distributes cool; dry air over the body, the rate of evaporation increases, resulting in even greater enhancement of cooling of the wearer.

REFERENCES:
patent: 4242769 (1981-01-01), Rayfield et al.
patent: 5243706 (1993-09-01), Frim et al.
patent: 5320164 (1994-06-01), Szczesuil et al.
patent: 5538583 (1996-07-01), Szczesuil et al.
patent: 5722482 (1998-03-01), Buckley
patent: 5755275 (1998-05-01), Rose et al
patent: 5970519 (1999-10-01), Weber

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