Plural d. c. motor short circuit prevention reversing circuit

Claim 1

IN A VEHICLE WINDOW SYSTEM INCLUDING A PLURALITY OF REVERSIBLE D.C. WINDOW OPERATING MOTORS FOR INDIVIDUALLY CONTROLLING A PLURALITY OF WINDOWS, EACH OF SAID MOTORS HAVING PERMANENT MAGNET FIELD EXCITATION AND AN ARMATURE THROUGH WHICH CURRENT MAY PASS IN OPPOSITE DIRECTIONS TO REVERSE THE DIRECTION OF ROTATION OF SAID MOTOR, AND A UNIDIRECTIONAL VOLTAGE SOURCE HAVING FIRST AND SECOND TERMINALS FOR ENERGIZING SAID MOTOR; A CONTROL CIRCUIT COMPRISING: (A) FIRST ENERGIZING CIRCUITS AND SECOND SEPARATE ENERGIZING CIRCUITS BETWEEN SAID SOURCE AND SAID ARMATURES PROVIDING TWO DIFFERENT CURRENT PATHS FROM SAID SOURCE TERMINALS TO EACH OF SAID ARMATURES; (B) A FIRST SET OF INDIVIDUALLY OPERABLE, DOUBLE POLE, DOUBLE THROW SWITCHES CONNECTED IN SAID FIRST ENERGIZING CIRCUITS, EACH SWITCH OF SAID FIRST SET BEING MANUALLY OPERATIVE FROM A NEUTRAL OPEN POSITION TO EITHER OF TWO POSITIONS EFFECTING OPPOSITE DIRECTIONS OF CURRENT FLOW THROUGH THE RESPECTIVE ONE OF SAID ARMATURES; (C) A SECOND SET OF INDIVIDUALLY OPERABLE DOUBLE POLE, DOUBLE THROW SWITCHES CONNECTED IN SAID SECOND ENERGIZING CIRCUITS, EACH SWITCH OF SAID SECOND SET BEING MANUALLY OPERATIVE FROM A NEUTRAL OPEN POSITION TO EITHER OF TWO POSITIONS EFFECTING OPPOSITE DIRECTIONS OF CURRENT FLOW THROUGH THE RESPECTIVE ONE OF SAID ARMATURES;