Portable cooler including holdover means

Claim 1

A PORTABLE COOLER COMPRISING A CONTAINER HAVING INNER AND OUTER WALLS, INSULATION BETWEEN SAID WALLS, A PLURALITY OF BRINE BOXES ALONG THE OUTSIDE SURFACES OF SAID INNER WALLS, A FREEZABLE BRINE IN SAID BOXES, A REFRIGERANT CIRCULATING PIPE EXTENDING THROUGH EACH OF SAID BRINE BOXES, SAID REFRIGERANT CIRCULATING PIPES BEING COUPLED TO EACH OTHER IN A REFRIGERANT CIRCULATION SYSTEM ADAPTED TO BE ATTACHED TO AN OUTSIDE COOLING MEANS FOR COOLING A REFRIGERANT AND PASSING IT THROUGH SAID CIRCULATION SYSTEM AND SAID REFRIGERANT CIRCULATING PIPES, A PLURALITY OF FINS ON SAID CIRCULATING PIPES IN EACH OF SAID BRINE BOXES, AND FIN-CAPS FITTING OVER THE UPPER PORTIONS OF THE FINS WITHIN SAID BRINE BOXES AND ENGAGED WITH THE EDGES OF THE UPPER PORTIONS OF SAID FINS FOR SEPARATING THE SPACES BETWEEN THE FINS AT THE UPPER PORTIONS THEREOF FROM THE SPACES WITHIN THE UPPER PORTION OF THE BRINE BOXES, THE BRINE WITHIN EACH BRINE BOX FILLING THE SPACES BETWEEN THE FINS TO A POINT WITHIN THE FIN-CAPS BELOW THE TOP EDGES OF THE FINS SO AS TO LEAVE A SPACE BETWEEN THE SURFACE OF THE BRINE IN THE SPACE BETWEEN EACH PAIR OF FINS AND THE TOP OF THE FIN-CAP ON THE TOP OF THE FINS.