US Patent Issued to CALMER HOLDING on Feb. 11 for "Combine with threshing chamber defined by distinct sequences of concaves" (Illinois Inventors)

ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,219,901, issued on Feb. 11, was assigned to CALMER HOLDING COMPANY LLC (Lynn Center, Ill.).

"Combine with threshing chamber defined by distinct sequences of concaves" was invented by Marion Calmer (Alpha, Ill.) and Daniel Wallerstedt (Rio, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A combine for harvesting a harvested material that includes a grain, the combine comprising: a threshing chamber comprising a series of threshing and separating apparatuses, sequentially arranged, comprising at least: (i) a straight bar concave (ii) a first round bar concave, and (iii) a second round bar concave. The size of each of the straight bar throats is smalle...