Regeneration of emf cells having molten metal electrodes and a fused salt electrolyte

Claim 1

A REGENERABLE STORAGE TYPE E.M.F. CELL SYSTEM, COMPRISING: A FIRST E.M.F. CELL HAVING A FUSED SALT ELECTROLYTE INTERPOSED BETWEEN TWO DISSIMILAR MOLTEN METAL ELECTRODES, SAID FIRST E.M.F. CELL BEING IN A FRESH CONDITION; A LOW TEMPERATURE HEAT SOURCE IN THERMAL CONTACT WITH SAID FIRST CELL HAVING A TEMPERATURE SLIGHTLY ABOVE THE HIGHEST MELTING POINT OF THE ELECTROLYTE AND METAL ELECTRODES; A SECOND E.M.F. CELL SIMILAR TO THE FIRST E.M.F. CELL AND ELECTRICALLY CONNECTED IN SERIES OPPOSITION THEREWITH, SAID SECOND E.M.F. CELL BEING A SPENT CONDITION; A HIGH-TEMPERATURE HEAT SOURCE IN THERMAL CONTACT WITH SAID SECOND E.M.F. CELL HAVING A TEMPERATURE SOMEWHAT LOWER THAN THE LOWEST BOILING POINT OF SAID ELECTROLYTE AND MOLTEN METALS; AND MEANS ELECTRICALLY CONNECTED IN SERIES WITH SAID FIRST AND SECOND E.M.F. CELLS PERFORMING WORK WITH PART OF THE OUTPUT VOLTAGE OF THE FIRST E.M.F. CELL SUCH THAT THE BALANCE OF SAID OUTPUT VOLTAGE IS SUFFICIENT FOR SIMULTANEOUS REGENERATION OF SAID SECOND E.M.F. CELL.