The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 03, 1981
Filed:
Jul. 02, 1979
Neil C Dunn, Moline, IL (US);
Robert L Francis, East Moline, IL (US);
Harold E Smith, Colona, IL (US);
International Harvester Company, Chicago, IL (US);
Abstract
An axial flow combine having a crop harvesting header including a feeder for cutting a crop and feeding it rearwardly into a threshing and separating mechanism. The mechanism includes a casing for receiving the crop material and a rotor within the casing for threshing and separating grain from the crop material. The rotor has a central drive shaft driven through a gear case behind the rotor. The gear case is partially enclosed within a cover having a smooth exterior surface. The end of the rotor is configured in a smooth exterior surface which is complementary to the surface of the cover to inhibit collection of chaff about the drive shaft. Impeller blades are secured on the rotor for creating an air flow directing crop material away from the drive shaft to prevent crop material wrapping about the shaft or accumulating in the drive system.