Self-ventilating cooling vest

Details Self-ventilating cooling vest Self-ventilating cooling vest

1999-12-02

2000-10-10

Calvert, John J.

Apparel

Body garments

Vests

2DIG1, 2DIG3, A41D 104

Patent

active

061287849

ABSTRACT:
A self-ventilating vest having a plural number of conduits extending through the vest, the conduits having an intake opening and one-way intake valve through which outside air can be drawn into the conduit, one or more compressible members, such as a tube, bulb or bladder retaining the air so that it absorbs body heat, and a one-way exhaust valve and exhaust opening through which the warmed air is expelled. The compressible members are compressed by the expansion of the chest during breathing or exertion to expel the warmed air, and when the compressive forces are removed, the compressible members expand to draw fresh air back into the compressible members through the intake opening to repeat the cycle.

REFERENCES:
patent: 1623993 (1927-04-01), Anderson
patent: 2648325 (1953-08-01), Siple
patent: 3348236 (1967-10-01), Copeland
patent: 3995329 (1976-12-01), Zafuto
patent: 4185327 (1980-01-01), Markve
patent: 4194247 (1980-03-01), Melander
patent: 4451934 (1984-06-01), Gioello
patent: 5005216 (1991-04-01), Blackburn et al.
patent: 5010925 (1991-04-01), Atkinson et al.
patent: 5050240 (1991-09-01), Sayre
patent: 5255390 (1993-10-01), Gross et al.

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