Patent ID: 8602015

Claim:
A cutting chain comprising a plurality of pivotally interconnected chain link segments, each chain link segment including a center link having front and rear holes, a pair of side links, each side link having front and rear holes and a fastener pivotally connecting the center link between the pair of side links, the rear holes of the side links and the front hole of the center link aligned and receiving the fastener therethrough, the rear hole of the center link and the front holes of a pair of side links of an adjacent chain link segment receiving another fastener pivotally interconnecting the chain link segments to each other to form a looped cutting chain, each side link having an annular rib or an annular groove surrounding each of the front and rear holes on an inner side facing the center link and the center link having the other of the annular rib or annular groove surrounding the respective one of the front and rear holes on both sides of the center link, each of the annular ribs or annular grooves of the side links cooperating with the other of the annular ribs or annular grooves of the center link to form a debris trap, each annular rib having a rib height of from about 18% to about 26% of the thickness of the respective side link or center link from which the annular rib extends and each annular groove having a groove height of from about 18% to about 26% greater than the rib height.