High capacity low impedance craneway duct having l-shaped bus bars mounted in a paired phase arrangement

Claim 1

AN ELONGATED DUCT SYSTEM FOR THE DISTRIBUTION OF MULTIPHASE ELECTRICAL ENERGY; SAID SYSTEM INCLUDING A FIRST AND SECOND CONDUCTOR FOR EACH PHASE OF SAID SYSTEM; MOUNTING MEANS POSITIONING SAID CONDUCTORS OF ALL PHASES SPACED FROM EACH OTHER AND GENERALLY PARALLEL TO THE LONGITUDINAL AXIS OF THE DUCT; MEANS ELECTRICALLY CONNECTING SAID CONDUCTORS IN A PAIRED PHASE ARRANGEMENT; SAID FIRST OF THE CONDUCTORS OF EACH PHASE HAVING A GENERALLY L-SHAPED CROSS-SECTION A FIRST LEG AND A SECOND LEG; SAID FIRST LEG BEING IN ENGAGEMENT WITH SAID MOUNTING MEANS; SAID FIRST LEGS OF ALL OF SAID FIRST CONDUCTORS POSITIONED IN SUBSTANTIALLY THE SAME PLANE; SAID SECOND LEGS OF ALL OF SAID FIRST CONDUCTORS EXTENDING IN THE SAME DIRECTION FROM SAID PLANE AND GENERALLY PARALLEL TO EACH OTHER; SAID MOUNTING MEANS BEING COMPRISES OF A PLURALITY OF INSULATING MEMBERS EXTENDING TRANSVERSE TO THE LONGITUDINAL AXIS OF THE DUCT AND SPACED ALONG SAID AXIS; ALL OF SAID CONDUCTORS BEING DISPOSED FORWARD OF SAID MEMBERS.