Thermally active convection apparatus

In combination with a heat generating exterior portion of the body of an individual, said exterior portion having an arcuate contour, improvements for removing heat from said exterior portion, said improvements comprising a cooled heat transfer device to draw heat away from and cool the exterior portion of the body, the improvements including

• (a) a pliable water impermeable outer wall
• (i) circumscribing and enclosing an inner space, and
• (ii) positioned above the exterior portion of the body of the individual, said wall including
• (iii) a pan (73B) with a bottom (78B) contacting and conforming to the contour of the exterior portion of the body of the individual, and
• (iv) a sealing layer (71B);
• (b) a plurality of spaced apart hollow fluid tight modules (75B) extending from said sealing layer into said inner space and toward said bottom (78B), each of said hollow modules including
• (i) a pliable thin-walled bottom portion,
• (ii) a thin-walled side interconnecting said bottom portion and sealing layer,
• (iii) an inner space, and
• (iv) an outer surface area;
• (c) a first heat-exchange composition in said inner space contacting said outer surface area of each of said fluid tight modules and comprising a first liquid which undergoes a change of state from the liquid phase to the solid phase at a selected temperature of transformation less than fifteen degrees F., said selected temperature of transformation being lower than the coldest temperatures found in conventional household freezers;
• (d) a second heat-exchange composition in said inner space of each of said modules and comprising a frozen second liquid which undergoes a change of state from a liquid phase to a frozen solid phase at a temperature in the range of fifteen degrees to thirty-two degrees F., said second fluid having a freezing point that is higher than the freezing point of said first fluid, said heat transfer device having
• (i) a surface temperature at least as cool as ten degrees F., and, when placed on a table at an ambient temperature of eighty degrees, which warms after four hours to a temperature no warmer than forty-two degrees F.,
• (ii) an interior temperature
• at least as cool as fifteen degrees F., and,
• when placed on a table at an ambient temperature of eighty degrees,
• which warms after four hours to a temperature no warmer than thirty-six degrees;
• (e) convection currents in said first fluid moving upwardly away from the exterior portion of the individual's body as the result of heat absorbed by said first liquid;
• and,
• (f) a plurality of channels each
• (i) interconnecting a pair of said pliable hollow modules to permit the flow of liquid therebetween,
• (ii) extending from said side of each of said pair of said hollow modules, and
• (iii) extending along said sealing layer.