Lox breathing system with gas permeable-liquid impermeable heat exchange and delivery hose
First Claim
1. Life support apparatus comprising:
- a garment for completely enclosing a wearer and constructed for preventing passage of gas from the environment surrounding said garment;
a portable receptacle holding a quantity of an oxygen-containing fluid in liquid state, the fluid being in a breathable gaseous state when at standard temperature and pressure;
fluid flow means secured within said garment and coupled to said receptacle for conducting the fluid in liquid state from said receptacle to the interior of said garment; and
flow control means connected for causing fluid to flow from said receptacle to said fluid flow means at a rate determined by the breathable air requirement of the wearer,wherein fluid in liquid state is conducted into the interior of the garment at a rate to be vaporized and heated to a breathable temperature by body heat produced by the wearer, andwherein said fluid flow means comprise a heat exchanger including a conduit connected to receive the fluid from said receptacle, said conduit being made of a material which is permeable to gasses and impermeable to liquids.
3 Assignments
0 Petitions
Accused Products
Abstract
Life support apparatus composed of: a garment (2): for completely enclosing a wearer and constructed for preventing passage of gas from the environment surrounding the garment (2); a portable receptacle (6) holding a quantity of an oxygen-containing fluid in liquid state, the fluid being in a breathable gaseous; state when at standard temperature and pressure; a fluid flow member (16) secured within the garment (2) and coupled to the receptacle (6) for conducting the fluid in liquid state from the receptacle (6) to the interior of the garment (2); and a fluid flow control device (14) connected for causing fluid to flow from the receptacle (6) to the fluid flow member (16) at a rate determined by the breathable air requirement of the wearer, wherein fluid in liquid state is conducted into the interior of the garment (2) at a rate to be vaporized and heated to a breathable temperature by body heat produced by the wearer.
59 Citations
13 Claims
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1. Life support apparatus comprising:
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a garment for completely enclosing a wearer and constructed for preventing passage of gas from the environment surrounding said garment; a portable receptacle holding a quantity of an oxygen-containing fluid in liquid state, the fluid being in a breathable gaseous state when at standard temperature and pressure; fluid flow means secured within said garment and coupled to said receptacle for conducting the fluid in liquid state from said receptacle to the interior of said garment; and
flow control means connected for causing fluid to flow from said receptacle to said fluid flow means at a rate determined by the breathable air requirement of the wearer,wherein fluid in liquid state is conducted into the interior of the garment at a rate to be vaporized and heated to a breathable temperature by body heat produced by the wearer, and wherein said fluid flow means comprise a heat exchanger including a conduit connected to receive the fluid from said receptacle, said conduit being made of a material which is permeable to gasses and impermeable to liquids. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification