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:
Sep. 10, 2002
Filed:
Jun. 11, 2001
José G. T. Gryspeerdt, Poesele, BE;
New Holland North America, Inc., New Holland, PA (US);
Abstract
A combine harvester comprises a threshing and separating arrangement mounted to a main frame, which includes a generally cylindrical chamber having a generally longitudinal axis and comprising a separating concave assembly and an upper guide cover provided with fins arranged to move harvested crop material along a helical path inside the chamber. The threshing and separating arrangement further comprises a rotor assembly mounted for rotation in the chamber and comprising a generally cylindrical rotor body with a separating section associated with the separating concave assembly and having a circumscribed diameter D. The pitch angle &agr; of the rotor fins has been optimized with respect to power requirements and rotor losses.