Patent ID: 8602856

Claim:
A combine harvester threshing drum threshing bar, comprising: a threshing fixture includes a leading edge and an opposed trailing end, a first face and an opposed second face, a top threshing side, and an opposed bottom threshing drum emplacement side; the opposed first and second faces extend between the top threshing side and the opposed bottom threshing drum emplacement side of the threshing fixture from the leading edge of the threshing fixture to the trailing end of the threshing fixture; the top threshing side includes a trailing threshing face and a leading threshing face that intersect at a corner formed in the top threshing side, the corner located between the leading edge and the trailing end of the threshing fixture and extends from the first face to the second face; the trailing threshing face extends between the opposed first and second faces of the threshing fixture from the trailing end to the corner; the leading threshing face extends between the opposed first and second faces of the threshing fixture from the corner to the leading edge, and inclines downwardly relative to the trailing threshing face from the corner and meets, and cooperates with, the bottom threshing drum emplacement side and the opposed first and second faces of the threshing fixture at the leading edge to form a wedge in the threshing fixture; a crop-threshing rasp structure formed in the top threshing side of the threshing fixture; the crop-threshing rasp structure comprises alternating grooves and vanes that extend along the trailing threshing face to the corner formed in the top threshing side of the threshing fixture and that further extend downwardly from the corner along the leading threshing face toward the leading edge of the threshing fixture, and the vanes extend outwardly from the corner where the trailing and leading threshing faces intersect and the grooves extend inwardly to the corner where the trailing and leading threshing faces intersect.