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:
Aug. 14, 1984
Filed:
Aug. 17, 1982
Frans J Decoene, Zedelgem, BE;
Gilbert J Strubbe, Zedelgem, BE;
Sperry Corporation, New Holland, PA (US);
Abstract
A rotary cleaning mechanism for cleaning threshed grain in a combine harvester is disclosed wherein a fan is mounted forwardly of the cleaning cylinder to blow air through the cleaning sieves to make unwanted residue airborne for discharge from the cleaning cylinder. A fan housing is provided with a first passageway to direct a flow of air through the grain being conveyed from a centrally located infeed mechanism onto a radially outwardly spaced grain pan. A second passageway is also provided in the fan housing to direct a flow of air through threshed grain being conveyed rearwardly off the grain pan onto a radially outwardly located cleaning sieve. The fan is mounted on an axis of rotation common with the cleaning cylinder and forwardly of the infeed housing, which includes an eliptically shaped infeed chute to aerodynamically permit the flow of air therearound to clean threshed grain on the cleaning cylinder immediately adjacent thereto. Deflector plates are provided within the second passageway to distribute the flow of air along the axial length of the cleaning cylinder, with a more concentrated flow of air being directed at the forward end thereof.