Cooled protective garment
AssigneeGore Enterprise Holdings, Inc.
InventorsMark J. Courtney, William J. Gorak, Gregory D. Culler, Christopher S. Weyl
Life of this patent
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Abstract
A chemical protective garment or ensemble is disclosed that comprises a impermeable, protective cooling laminate having a water-holding layer for holding and evaporating liquid, and a chemical barrier. The water-holding layer has a water-holding capacity of at least about 5% wt., and the suit is designed to retain sufficient liquid to provide cooling to a wearer upon evaporation of the liquid from the suit.
Claims70
Chemical protective garment or ensemble comprising:
- a protective cooling laminate having a water absorption capacity greater than or equal to about 5% wt based on the weight of the protective cooling laminate comprising
- a water-holding layer for holding and evaporating water and
- a chemical barrier impermeable to water vapor disposed between the water holding layer and a wearer of the chemical protective garment,
- wherein the chemical protective garment has an evaporative resistance less than or equal to about 40 m2 Pa/W, and
- wherein the garment or ensemble meets the chemical permeation requirements NFPA 1994 or the chemical penetration requirements of NFPA 1992, or both.
Chemical protective garment or ensemble comprising:
- a protective cooling laminate having a water absorption capacity greater than or equal to about 5% wt based on the dry weight of the protective cooling laminate comprising
- a water-holding layer for holding and evaporating water comprising
- a substrate and
- a means for increasing the hydrophilicity of the substrate, and
- a chemical barrier impermeable to water vapor disposed between the water holding layer and a wearer of the chemical protective garment,
- wherein the chemical protective garment has an evaporative resistance less than or equal to about 40 m2 Pa/W, and
- wherein the garment or ensemble meets the chemical permeation requirements of NFPA 1994 or the chemical penetration requirements for NFPA 1992, or both.
Chemical protective garment comprising:
- a coverall having hood, the coverall covering the head, torso, arms and legs of a wearer comprising
- a protective cooling laminate having a water absorption capacity greater than or equal to about 5% wt based on the protective cooling laminate weight comprising
- a water-holding layer for holding and evaporating water, and
- a chemical barrier impermeable to water vapor,
- wherein the chemical barrier is disposed between the water holding layer and a wearer of the chemical protective garment, and
- wherein the protective cooling laminate has a moisture vapor transmission rate of less than about 0.01 g/(Pa m2h).
A method of cooling a wearer of a chemical protective garment or ensemble comprising
- a. providing a chemical protective garment comprising
- a protective cooling laminate comprising
- i. a water-holding layer for holding and evaporating water having a water absorption greater than or equal to 5% wt and
- ii. a chemical barrier impermeable to moisture vapor,
- b. covering the wearer with the chemical protective garment and disposing the chemical barrier between a wearer and the water-holding layer
- c. wetting the water-holding layer with liquid water, and
- d. evaporatively removing the water from the water-holding layer to achieve an evaporative resistance of less than 40 m2 Pa/W.
Dependencies are inferred from the claim text.