Patent Number: 05999584&
Section: claims

1. A rigging system for reactor closure head and reactor internals lifts, the system comprising: (a) a plurality of latchbox pendants attached to the lifting structure of an overhead crane;  (b) a first set of a plurality of T-shaped lifting lugs attached to said reactor internals, each of said lifting lugs corresponding to one of said plurality of latchboxes; and  (c) a second set of a plurality of substantially identical T-shaped lifting lugs attached to said reactor closure head, each of said lifting lugs corresponding to one of said plurality of latchboxes; whereby said latchbox pendants may be rigged once to said overhead crane for handling reactor internals and left in place throughout the entire rigging sequence without changing to turnbuckle pendants for reactor closure head handling.  (a) a second set of a plurality of substantially identical T-shaped lifting lugs attached to said reactor closure head, each of said lifting lugs corresponding to one of said plurality of latchboxes; and  (b) a plurality of adjusting means attached between each of said substantially identical lifting lugs and said reactor closure head, whereby said latchbox pendants may be rigged once to said overhead crane for handling reactor internals and left in place throughout the entire rigging sequence without changing to turnbuckle pendants for reactor closure head handling.  (a) a plurality of latchbox pendants attached to the lifting structure of an overhead crane;  (b) a first set of a plurality of T-shaped lifting lugs attached to said reactor internals, each of said lifting lugs corresponding to one of said plurality of latchboxes; and  (c) a second set of a plurality of substantially identical T-shaped lifting lugs attached to said reactor closure head, each of said lifting lugs corresponding to one of said plurality of latchboxes;  (d) a plurality of solid rod lifting pendants attached at one end to said reactor closure head; and  (e) a plurality of adjusting means attached between each of said substantially identical lifting lugs and said plurality of solid rod lifting pendants attached to said reactor closure head, whereby said latchbox pendants may be rigged once to said overhead crane for handling reactor internals and left in place throughout the entire rigging sequence without changing to turnbuckle pendants for reactor closure head handling. 2. The apparatus according to claim 1, further a plurality of solid rod lifting pendants attached at one end to said reactor closure head and at the other end to said second set of lifting lugs. 3. The apparatus according to claim 1, wherein said plurality of latchbox pendants attached to the lifting structure of an overhead crane includes an adjustable turnbuckle between said latchboxes and said lifting structure. 4. The apparatus according to claim 1, wherein said lifting structure of an overhead crane is a tripod to provide a 3-point lift to maintain said reactor internals and said reactor closure head level. 5. A conversion kit for an existing rigging system for reactor closure head and reactor internals lifts, said existing rigging system including a plurality of latchbox pendants attached to the lifting structure of an overhead crane and a first set of a plurality of T-shaped lifting lugs attached to said reactor internals, each of said lifting lugs corresponding to one of said plurality of latchboxes, said conversion kit comprising: 6. The apparatus according to claim 5, wherein said adjusting means is at least one turnbuckle. 7. The apparatus according to claim 5, wherein said adjusting means is a plurality of turnbuckles and one end of each said second set of a plurality of lifting lugs is threaded into each of said turnbuckles. 8. A rigging system for reactor closure head and reactor internals lifts, said system comprising: 9. The apparatus according to claim 8, wherein said plurality of latchbox pendants attached to the lifting structure of an overhead crane includes an adjustable turnbuckle between said latchboxes and said lifting structure. 10. The apparatus according to claim 8, wherein said lifting structure of an overhead crane is a tripod to provide a 3-point lift to maintain said reactor internals and said reactor closure head level. 11. The apparatus according to claim 8, wherein said adjusting means is at least one turnbuckle. 12. The apparatus according to claim 8, wherein said adjusting means is a plurality of turnbuckles and one end of each said second set of a plurality of lifting lugs is threaded into each of said turnbuckles.