Patent ID: 7883153
Filing Date: 2011-02-08
Classification: E01C

Abstract:
1. A road milling drum assembly for use with a road milling machine in a roadway milling operation generating debris, the road milling drum assembly comprising: a cylindrical core portion carrying a first road planing bit assembly, and the cylindrical core portion detachably connecting to the road milling machine; the first road planing bit assembly having a first milling width wherein the first milling width is a minimum milling width of the road milling drum assembly; and a selected one of the following components: wherein the cylindrical core portion containing a bore; when the selected component being the protective cover, the protective cover having a dowel, and the bore receiving the dowel; when the selected component being the first milling extension segment, the first milling extension segment having a dowel, and the bore receiving the dowel; when the selected component being the second milling extension segment, the second milling extension segment having a dowel, and the bore receiving the dowel.