Portable mixing machine

Claim 1

MIXING APPARATUS INCLUDING A PLURALITY OF SUPPLY CONTAINERS ADAPTED TO CONTAIN DIFFERENT LIQUIDS, REFRIGERANT EVAPORATING MEANS ASSOCIATED WITH ONE OF SAID CONTAINERS, MEANS INCLUDING REFRIGERANT LIQUEFYING MEANS OPERATIVELY CONNECTED TO SAID EVAPORTING MEANS FOR KEEPING SAID EVAPORATING MEANS AT A SUBSTANTIALLY CONSTANT TEMPERATURE, A MIXER HOUSING, SUPPLY AND RETURN CONDUIT MEANS EXTENDING FROM SAID SUPPLY CONTAINERS TO SAID MIXER HOUSING, VALUE MEANS ASSOCIATED WITH SAID MIXER HOUSING FOR CONNECTING SAID SUPPLY CONDUIT MEANS WITH SAID RETURN CONDUIT MEANS OF FOR DELIVERY INTO SAID MIXER HOUSING, POSITIVE DISPLACEMENT PUMP MEANS LOCATED IN EACH OF SAID SUPPLY CONDUIT MEANS FOR PUMPING LIQUIDS INDIVIDUALLY FROM SAID SUPPLY CONTAINERS TO SAID VALVE MEANS, THE SUPPLY CONDUIT MEANS CONNECTED WITH SAID ONE CONTAINER BEING PROVIDED WITH ELECTRIC HEATING MEANS, A VARIABLE TRANSFORMER AND A THERMOSTATIC CONTROL MEANS FOR CONTROLLING SAID HEATING MEANS HAVING A THERMOSENSITIVE ELEMENT IN HEAT TRANSFER WITH THE LIQUID IN SAID SUPPLY CONDUIT MEANS BETWEEN SAID HEATING MEANS AND SAID VALVE MEANS FOR DELIVERING LIQUID AT A SUBSTANTIALLY CONSTANT TEMPERATURE TO SAID MIXER HOUSING.