Patent Number: 6,305,560

Title: Multiple pedestal ring for ringer crane

Abstract: A system of multiple concentric annular support pedestal rings for providing load and counterweight support for a ring supported crane. The pedestal rings are fabricated from uniform sections of steel, which are mated at preferably triangular shaped ends. A top rail is secured on the ring segments to complete the pedestal ring. At least two rings support the crane through rocker beam assembly structures for powered and idler rollers, providing additional strength and stability to the crane through the distribution of weight forces down through a larger support footprint. Additional stability is also provided by substantially increasing the weight of counterweight that can be utilized. Weight distribution from the boom and mast is enhanced with an inventive boom foot carrier, that distributes the weight of the boom and/or mast through multiple concentric rings. Weight distribution from the counterweight is similarly distributed through the inventive counterweight carrier.

Inventors: Meyer; William D. (Sugar Land, TX)


International Classification: B66C 23/84 (20060101); B66C 23/00 (20060101); B66C 023/62 ()

Expiration Date: 10/23/2018