Ball nut return guide

Claim 1

AN ASSEMBLY COMPRISING A SCREW CARRYING A NUT INTERCONNECTED TO THE SCREW THROUGH A TRAIN OF BALLS UTILIZING THE HELICAL GROOVE OF THE SCREW AND THE INTERNAL HELICAL GROOVE OF THE NUT AS A RACE, SAID RACE BEING MADE ENDLESS BY A RETURN TUBE EXTENDING DIAGONALLY ACROSS THE BODY OF THE NUT AND HAVING LEGS ACCOMMODATED BY SPACED BORES IN THE NUT AND OPENING TO SAID RACE, SAID TUBE BEING CONSTITUTED OF INNER AND OUTER MATING ELEMENTS, THE INNER ELEMENT FORMING AN INNER PORTION OF THE TUBE, THE OUTER ELEMENT FORMING AN OUTER PORTION OF THE TUBE, THE OUTER ELEMENT BEING FLANGED FOR THE ACCOMMODATION OF FASTENING MEANS, FASTENING MEANS FOR SECURING THE TUBE TO THE NUT, THE INNER ELEMENT BEING RETAINED AGAINST RADIAL OUTWARD DISPLACEMENT SOLELY BY SAID OUTER ELEMENT AND EXTENDING FURTHER INTO SAID BORES THEREBY TO PROVIDE DEFLECTING FINGERS FACILITATING MOVEMENT OF THE BALLS INTO AND OUT OF SAID RACE AND THE INNER AND OUTER MATING ELEMENTS HAVING INTERLOCK MEANS OPERATIVELY ENGAGED TO INTERLOCK THE INNER AND OUTER MATING ELEMENTS TO PREVENT RELATIVE MOVEMENT THEREBETWEEN IN DIRECTIONS PARALLEL AND TRANSVERSE TO THE DIAGONALLY EXTENDING PORTION OF THE RETURN TUBE.