Autonomous cooling vest

Abstract

An autonomous cooling vest to cool its user by evaporating a coolant in contact with the user's skin surface is described. Multifunctional panels attached to the vest in the parts corresponding to the human body are permeable to ambient air and contain a liquid retaining screen kept in contact with the user's skin. The cooling support system automatically controls the transfer of the coolant liquid contained in a reservoir to each screen and allows the user to adjust the operation of the system to activate and deactivate the ventilation on the liquid retained in the screens and adjust the amount of liquid dispersed over the screens as needed. The flow of air ventilated by the fans and the air that permeates through the referred multifunctional panels favor the evaporation of the liquid retained in the screens, promoting the user's cooling.

1 - 4 . (canceled) 
     
     
         5 . A vest integrated with a cooling support system intended for the cooling of a person, comprising at least one reservoir of liquid, a duct network, at least one liquid retaining screen, at least one fan for each liquid retaining screen, at least one propellant pump, means for automatically controlling the functioning of said cooling support system, means for maintaining each liquid retaining screen in contact with the user's skin surface and means for irrigating each liquid retaining screen with the liquid contained in at least one reservoir; the vest integrated with a cooling support system characterized by further comprising:
 a) at least one hydraulic device comprising means for restraining the flow of liquid which flows through itself;   b) at least one pressure sensor comprising means for sensing the pressure of the liquid;   c) at least one valve comprising means for opening and closing the flow of liquid; and   d) means for the ventilation produced by at least one fan to effect on each liquid retaining screen.   
     
     
         6 . The vest integrated with a cooling support system, according to claim  1 , characterized by including:
 a) each reservoir connected to the outlet nozzle of said at least one propellant pump for pressurizing each reservoir, each air pump comprising an air electropump whose electrical contacts are connected in series to a first electric current supply circuit;   b) each reservoir connected to the pressure tap of said at least one pressure sensor for sensing the pressure inside each reservoir, each pressure sensor comprising a pressure switch whose electrical contacts are connected in series to the first electric current supply circuit;   c) the outlet nozzle of each reservoir connected to the inlet nozzle of said at least one valve for collecting the liquid drained of each reservoir, each valve comprising a solenoid valve whose electrical contacts are connected in series to a second electrical current supply circuit;   d) the outlet nozzle of the solenoid valve connected to the inlet nozzle of the duct network;   e) the outlet nozzle of each terminal branch of the duct network connected to said at least one hydraulic device for restraining the flow of liquid in the respective terminal branch of the duct network, each hydraulic device being hereinafter referred to as calibrated orifice, comprising an orifice in the tubule whereby the liquid flows, which dimensions make the amount of liquid ejected as a function of the pressure of the liquid in the terminal branch of the duct network;   f) the second electric current supply circuit connected in series to at least one electrical device comprising means for repeatedly varying the state of the second electric current supply circuit between open and closed, each said electric device, hereinafter referred as timer, also comprising at least one potentiometer through which the user selects the opening state and closing state times;   g) the first and second electric current supply circuits connected in series to an electric current switch;   h) the first and second electric current supply circuits connected in series to at least one electric current supply;   i) each fan, comprised by a fan powered by electric current, is connected in series to a third electric current supply circuit;   j) the third electric current supply circuit connected in series to a second electric current switch; and   k) the third electric current supply circuit connected in series to a second electric current switch.   
     
     
         7 . The vest integrated with a cooling support system, according to claim  1 , characterized by the fact that the means for maintaining each liquid retaining screen in contact with the user's skin surface, the means for irrigating each liquid retaining screen with the liquid contained in at least one reservoir and the means for that the ventilation produced by at least one fan effects on each liquid retaining screen, are supported by a panel, hereinafter referred to as multifunctional panel, which:
 a) is fixed to the vest in parts corresponding to the user's chest, back, abdomen, arms or legs;   b) is comprised of juxtaposed layers, the outermost layer being made of predominantly rigid materials, the intermediate layer being made of predominantly elastic materials and the innermost layer comprising said at least one screen capable of retaining liquid;   c) has perforations and in the outer and intermediate layers;   d) contains in the intermediate layer a channel with a diameter equal to the outer diameter of the terminal branch of the duct network;   e) contains in said channel a terminal branch of the duct network;   f) contains in the intermediate layer a dispersion nozzle which interconnects the interstice between the inner and intermediate layers to said channel;   g) contains in the intermediate layer at least one cavity with a perforation that transpasses through the entire intermediate layer; and   h) contains in said cavity a fan positioned so as to ventilate towards said at least one screen.   
     
     
         8 . The vest integrated with a cooling support system, according to claim  2 , characterized by the fact that the means for maintaining each liquid retaining screen in contact with the user's skin surface, the means for irrigating each liquid retaining screen with the liquid contained in at least one reservoir and the means for that the ventilation produced by at least one fan effects on each liquid retaining screen, are supported by a panel, hereinafter referred to as multifunctional panel, which:
 a) is fixed to the vest in parts corresponding to the user's chest, back, abdomen, arms or legs;   b) is comprised of juxtaposed layers, the outermost layer being made of predominantly rigid materials, the intermediate layer being made of predominantly elastic materials and the innermost layer comprising said at least one screen capable of retaining liquid;   c) has perforations and in the outer and intermediate layers;   d) contains in the intermediate layer a channel with a diameter equal to the outer diameter of the terminal branch of the duct network;   e) contains in said channel a terminal branch of the duct network;   f) contains in the intermediate layer a dispersion nozzle which interconnects the interstice between the inner and intermediate layers to said channel;   g) contains in the intermediate layer at least one cavity with a perforation that transpasses through the entire intermediate layer; and   h) contains in said cavity a fan positioned so as to ventilate towards said at least one screen.