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.

Date of Patent:
Feb. 13, 1979

Filed:

Oct. 20, 1977
Applicant:
Inventor:

Edward J Hengen, Bettendorf, IA (US);

Assignee:

Deere & Company, Moline, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01F / ;
U.S. Cl.
CPC ...
130 / ; 56 146 ;
Abstract

The axial flow rotary separator of a combine includes a rotor having a generally cylindrical threshing section surrounded by a fixed, non-adjustable concave or grate so as to define an annular threshing space. The rotor includes threshing bar assemblies pivoted about axes parallel to the rotor axis and spring loaded in the direction of reducing concave clearance, against adjustable stops. Setting of the stops is controlled by adjusting eyebolts mounted on the front of the rotor, accessible from the front of the combine and connected to the stops through a pivot arm assembly. In normal operation springs hold the threshing bar assemblies against the stops but the pressure of a large foreign body or an excessive flow or material entering the threshing space may overcome the spring pressure forcing the threshing bars to retract to provide necessary clearance.


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Hengen, Edward. (1979). Threshing rotor for a combine (U.S. Patent No. 4139013). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4139013

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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