Electric welder for joining battery-cell connecters through intercell walls

Claim 1

APPARATUS FOR CONNECTING PAIRS OF CONDUCTIVE STRAPS OF ADJACENT BATTERY CELL ELEMENT ASSEMBLIES CONTAINED IN A BATTERY CASE, AND WHEREIN EACH OF SAID PAIRS OF CONDUCTIVE STRAPS IS SEPARATED BY A PARTITION WALL OF THE BATTERY CASE, BY A WELDED THROUGH AN OPENING IN THE PARTITION WALL, SAID APPARATUS COMPRISING, IN COMBINATION, BATTERY CASE SUPPORT MEANS, MEANS FOR PRODUCING WELDS AT A PLURALITY OF DIFFERENT AREAS IN SAID BATTERY CASE CORRESPONDING TO THE LOCATION OF SAID PAIRS OF CONDUCTIVE STRAPS AND FURTHER OPERATIVE TO PRODUCE SAID WELDS SEQUENTIALLY AND WITH LESS THAN ALL OF SAID WELDS BEING MADE AT A GIVEN TIME, SAID MEANS INCLUDING A WELDING HEAD, A PLURALITY OF PAIRS OF RELATIVELY MOVABLE WELDING ARMS DEPENDING FROM SAID WELDING HEAD, MEANS FOR POSITIONING SAID BATTERY CASE SUPPORT MEANS, WITH A BATTERY CASE CONTAINING SAID CELL ELEMENT ASSEMBLIES SUPPORTED THEREON RELATIVE TO SAID WELDING HEAD AND WITH SAID WELDING ARMS ARRANGED ON OPPOSITE SIDES OF SAID PARTITION WALLS FOR ENGAGEMENT WITH SAID PAIRS OF ADJACENT CONDUCTIVE STRAPS WHICH ARE ALSO ON OPPOSITE SIDES OF THE PARTITION WALLS AND MEANS CONNECTED TO SAID WELDING ARMS FOR MOVING SAID WELDING ARMS INTO ENGAGEMENT WITH PAIRS OF ADJACENT CONDUCTIVE STRAPS TO PRESS SAID ADJACENT STRAPS INTO ENGAGEMENT THROUGH SAID PARTITION WALL OPENINGS AND ALSO OPERATIVE, WHEN SAID WELDING ARMS ARE MOVED TOWARD EACH OTHER TO ENGAGE AND PRESS SAID CONDUCTIVE STRAPS INTO ENGAGEMENT, TOI SEQUENTIALLY PASS AN ELECTRIC CURRENT THROUGH SAID PAIRS OF WELDING ARMS AND ADJACENT CONDUCTIVE STRAPS ENGAGED THEREBY OR SUFFICIENT MAGNITUDE TO WELD SAID ADJACENT CONDUCTIVE STRAPS THROUGH SAID PARTITION WALL OPENINGS.