Personal thermal device

Claim 1

A FLEXIBLE HEAT EXCHANGE PANEL ADAPTED TO BE PLACED NEAR PORTIONS OF THE HUMAB BODY IN HEAT-EXCHANGE RELATIONSHIP THEREWITH COMPRISING TWO SHEETS OF FLEXIBLE WATERPROOF PLASTIC MATERIAL, SAID SHEETS BEING SELAED TOGETHER ALONG A PLURALITY OF PAIRS OF CONTINUOUS LINES DEFINING A PLURALITY OF LIQUID-CONDUCTING PASSAGES BETWEEN SAID PAIRS OF LINES, SAID LINES DEFNING AN INLET AT ONE EDGE OF SAID PANEL CONNECTED TO A PLURALITY OF LIQUID-CONDUCTING PASSAGES THAT RETURN TO AN OUTLET AT SAID EDGE OF THE PANEL NEAR SAID INLET, SAID PLURALITY OF LIQUID-CONNECTING PASSAGES BEING IN PARALLEL FLOW RELATIONSHIP BETWEEN SAID INLET AND OUTLET AND TRAVERSING BACK AND FORTH ACROSS SAID PANEL AND EXTENDING FROM SAID INLET TO AN AREA IN SAID PANEL REMOTE ROM SAID INLET AND THEN TRANSVERSING BACK AND FORTH ACROSS SAID PANEL AND RETURNING FROM SAID REMOTE AREA TO SAID OUTLET, THE PORTIONS OF SAID PASSAGES RETURNING FROM SAID REMOTE AREA CLOSELY PARALLELING THE PORTIONS OF SAID PASSAGES EXTENDING TO SAID REMOTE AREA, AND SAID PANEL HAVING A MULTIPLICITY OF PERFORATIONS THERETHROUGH BETWEEN SAID PASSAGES.