Modular circuit assembly

Claim 1

IN A SYSTEM OF THE TYPE DESCRIBED, A PLURALITY OF MODULAR CIRCUIT HOUSINGS INTERCHANGEABLY INTERCONNECTABLE IN SERIAL ARRAY, A PLUG-IN CONNECTOR UNIT FOR EACH NODULE HAVING A TOTAL MEMBER OF CONDUCTORS CORRESPONDING TO THE TOTAL NUMBER OF MODULES, ONE DIFFERENT CONDUCTOR FOR CONNECTOR OF EACH MODULE BEING RESERVED EXCLUSIVELY FOR THAT MODULE AND THE OTHER CONDUCTORS OF THE CONNECTOR BEING RACH RESERVED FOR DIFFERENT ONES OF THE OTHER MODULES IN THE ARRAY, WHEREBY WHEN THE PLURALITY OF MODULES ARE SERIALLY INTERCONNECTED A PLURALITY OF SEPARATE AND INDEPENDENT ELECTRICAL CIRCUITS ARE PROVIDED THROUGH THE ARRAY WITH A DIFFERENT CIRCUIT FOR EACH MODULE, EACH SAID CONNECTOR UNIT COMPRISING A PLURALITY OF SUBSTANTIALLY RIGID CONDUCTORS, EACH HAVING A MALE TERMINAL PORTION AT ONE END AND A FEMALE PORION AT THE OTHER END, AND AN INSULATING MEMBER FOR SUPPORTING SAID SUBSTANTIALLY RIGID CONDUCTORS, EACH SAID CONNECTOR UNIT BEING LARGER THAN THE THICKNESS OF ITS ASSOCIATED MODULE AND HAVING SAID MALE AND FEMALE TERMINAL PORTIONS EXTENDING FROM OPPOSITE SIDES OF THE MODULE.