Patent ID: 6421938
Filing Date: 2002-07-23
Classification: E02F

Abstract:
An endless chain type cutter comprising:upper and lower sprockets spaced apart along a longitudinal axis; an endless chain extending between the upper and lower sprockets along said axis; and at least one group of cutter elements, mounted on said endless chain, for cutting a ditch of predetermined width, at least some of said cutter elements having a planar configuration, a beveled cutting edge surface and a cutting edge, an entire longitudinal length of said planar configuration being oriented substantially parallel to said longitudinal axis and at least one of said beveled cutting edge surface and said cutting edge being oriented at an angle relative to said longitudinal axis, said at least one group of cutter elements including laterally outermost cutter elements spaced apart by said predetermined width, and the cutter elements of said at least one group together being arranged to cut throughout the predetermined width between the laterally outermost cutter elements of said at least one group.