Patent ID: 8374307
Filing Date: 2013-02-12
Classification: B25G,G21C,Y02E

Abstract:
1. A nut assembly on a spade member configured to connect adjoining poles in a nuclear reactor, comprising: a cylindrical tube serving as the spade member; a lower nut surrounding a portion of the cylindrical tube, the lower nut having first threads on an inner surface, the first threads mating with second threads on an outer surface of the cylindrical tube; an upper nut surrounding a portion of the cylindrical tube and the lower nut, the upper nut having third threads on an inner surface, the third threads mating with fourth threads on an outer surface of the lower nut; a first overhang on a distal end of the lower nut, the first overhang extending from the lower nut in a transverse direction; and a second overhang on a distal end of the upper nut, the second overhang extending from the upper nut in a transverse direction, the first and second overhangs being located on opposite distal ends of the nut assembly; the lower nut rotatable in a first angular direction, on the first and second threads, to move the lower nut toward an upper sleeve of a first adjoining pole until the first overhang contacts the upper sleeve, the upper nut rotatable in a second angular direction, on the third and fourth threads, to move the upper nut toward an upper sleeve of a second adjoining pole until the second overhang contacts the upper sleeve.