Portable life support system
First Claim
Patent Images
1. A portable life support system, comprising:
- a liquid cooled garment;
.Iadd.a backpack supporting the life support system comprising;
.Iaddend.an orientationally independent dewar for containing liquid cryogen;
means for circulating liquid cryogen from said dewar in heat exchange relation with .[.the.]. .Iadd.a .Iaddend.cooling liquid so as to cool the wearer of the garment and vaporize the liquid cryogen; and
means for delivering vaporized cryogen to the wearer of said garment for breathing purposes.
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Abstract
The invention in its preferred embodiment is a portable life support system providing the wearer of a garment with temperature regulation and a breathable atmosphere using cryogenic technology. Wherein a liquid cryogen is vaporized by heat exchange with the wearers body and the vaporized cryogen is delivered to the wearer as a breathable atmosphere.
38 Citations
26 Claims
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1. A portable life support system, comprising:
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a liquid cooled garment; .Iadd.a backpack supporting the life support system comprising;
.Iaddend.an orientationally independent dewar for containing liquid cryogen; means for circulating liquid cryogen from said dewar in heat exchange relation with .[.the.]. .Iadd.a .Iaddend.cooling liquid so as to cool the wearer of the garment and vaporize the liquid cryogen; and means for delivering vaporized cryogen to the wearer of said garment for breathing purposes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A portable life support system, comprising:
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a liquid cooled garment; .Iadd.a backpack supporting the life support system comprising;
.Iaddend.an orientationally independent dewar for containing and delivering liquid cryogen; and a heat exchanger for exchanging heat between the cooling liquid and the liquid cryogen delivered from the dewar. - View Dependent Claims (10, 11, 12, 25)
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13. A portable life support system, comprising:
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a liquid cooled garment through which cooling liquid may be circulated; .Iadd.a backpack supporting the life support system comprising;
.Iaddend.a source of liquid cryogen;
.Iadd.and.Iaddend.means for delivering liquid cryogen from said source at a varying rate in heat exchange relation with the cooling liquid to cool the cooling liquid, thereby varyingly regulating the temperature of the cooling liquid. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A portable life support system, comprising:
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a liquid cooled garment through which cooling liquid may be circulated; .Iadd.a backpack supporting the life support system comprising;
.Iaddend.a source of liquid cryogen; means for circulating liquid cryogen from said source in heat exchange relation with the cooling liquid to cool the cooling liquid and vaporize the liquid cryogen; and means for delivering vaporized cryogen to the wearer of said garment for breathing purposes, said delivering means delivering vaporized cryogen at a varying rate, thereby varyingly regulating the temperature of the cooling liquid. - View Dependent Claims (20, 21, 22, 23, 24)
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26. liquid..Iaddend..Iadd.33. A portable life support system, comprising:
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.Iadd.a housing means supporting a life support system of a size and shape to be carried as a backpack including; .Iadd.an orientationally independent dewar for containing liquid cryogen; .Iadd.heat exchange means for circulating liquid cryogen from said dewar in heat exchange relation with a heat source so as to provide vaporized cryogen for breathing purposes; and .Iadd.means for delivering said vaporized cryogen to the wearer of said backpack for breathing purposes..Iaddend..Iadd.34. A portable life support system according to claim 33 which further includes; .Iadd.a heat exchanger between said heat exchange means and said means for delivering said vaporized cryogen to vaporize any excess liquid cryogen and warm said vaporized cryogen to a breathable temperature..Iaddend.
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Specification