ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,457,937, issued on Nov. 4, was assigned to MACDON INDUSTRIES LTD. (Winnipeg, Canada).

"Crop harvesting header with variable diameter reel" was invented by Rheal Remillard (St. Joseph, Canada) and Bruce Robert Shearer (Winnipeg, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "A reel of a harvester including a cutter bar includes a plurality of reel bats which are pivotal so as to vary the angle of the fingers about the bat axis as the reel rotates. The reel is used with a cutter bar which can change in height at one or more positions along its length to accommodate changes in ground height and contour. In order to maintain the fingers of the reel as...