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:
Jan. 06, 2004
Filed:
Mar. 28, 2002
Douglas A. Voss, Wichita, KS (US);
Richard C. Eckrote, Inman, KS (US);
Robert Honas, Newton, KS (US);
AGCO Corporation, Duluth, GA (US);
Abstract
The cleaning apparatus of a combine harvester has an oscillating sieve assembly and an oscillating pan assembly beneath the sieve assembly. The sieve assembly comprises a pair of superimposed sieves, both of which are mounted on the same frame for oscillation in unison and always in the same direction. The pan assembly comprises a clean grain pan and a tailings return pan both mounted on a common frame that is separate from the frame of the sieve assembly so that the pans oscillate separately from the sieves. The sieve and pan assemblies are mounted and driven in such a manner that the feed stroke of each assembly is in the same direction as its direction of conveyance, so as to maximize their ability to deliver materials in the intended direction. The clean grain pan, and optionally also the tailings return pan, is corrugated along its upper feeding surface with the corrugations inclined forwardly in the conveying direction so as to maximize the feeding action while minimizing retrograde movement of the materials thereon.