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:
Dec. 07, 1982
Filed:
Jan. 30, 1981
Edward J Hengen, Bettendorf, IA (US);
James H Bassett, Davenport, IA (US);
Deere & Company, Moline, IL (US);
Abstract
In an axial flow rotary separator for a combine, radially extending spike-tooth-like blades are arranged on a rotor body in 'reverse' helical arrays, that is, such that helical flighting, similarly disposed, would tend to convey crop material upstream. The helix angles defined by the arrays approximate that of the mean spiral path of conveyance of a crop material mat portion through the separator housing. Propulsion of the crop material mat thus results from a plurality of spaced and staggered engagements of small contact area. The arrays are spaced so that the rotor elements present no extensive wall or front to the crop material thus reducing the tendency to 'roping' and separator plugging in tough straw conditions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile