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. 02, 1994
Filed:
May. 10, 1991
Roderick J Jensen, Moline, IL (US);
Richard L Day, Port Byron, IL (US);
Edwin M Gerber, Hooppole, IL (US);
Deere & Company, Moline, IL (US);
Abstract
A combine having a transverse threshing cylinder and concave and an axial separator. The axial separator comprises a pair of side-by-side axial separator units each having a rotor and a casing in which the rotors are housed. Each axial separator units is provided with three detachable covers having inwardly projecting spiral vanes. The covers are axially arranged and the first cover is adjacent to the transverse threshing cylinder and concave. The first cover is provided with at least five spiral vanes. The first vane has an angle of inclination to the transverse axis of approximately forty-five degrees; the second, third and fourth vanes have an angle of inclination of approximately thirty degrees; and the fifth vane has an angle of inclination of approximately twenty-five degrees. In small grains, such as rice, the second and third covers each have at least four vanes all with an angle of inclination of approximately twenty degrees. In corn, the second and third covers each have at least four vanes all with an angle of inclination of approximately ten degrees. The second and third covers are designed to be interchangeable depending on crop.