Patent · US Active

Harvested crop residue chopper and distribution arrangement for a combine with an impeller blower whose shape conforms to the contour of the straw chopper

US8864561B2 · kind B2 · utility

3Cited by

14References

11Claims

0Family size

Assignee

Deere & Company · US

Inventors

Dirk Weichholdt · Sarreguemines, FR
Rico Priesnitz · Lebach, DE
Friedrich Lauer · Gaimersheim, DE
Oliver Klein · Saarlouis, DE
Chad A. Dow · East Moline, US
Joel D. Ferris · Davenport, US

Key dates

Filing date	Aug 26, 2009
Grant date	Oct 21, 2014
Priority date	—
Expiry date	May 12, 2032

Classification

Technology area (CPC A)Human Necessities
CPC primaryA01D41/1243
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The invention concerns a harvested crop residue chopper and distribution arrangement for a combine (10) with a straw chopper (60) with a rotor (74) that can be brought into rotation about a horizontal axis (98) with chopper blades (76) fastened thereto that define an outer envelope (96), and with at least one impeller blower (82) arranged downstream of the straw chopper (60) with impeller blades (84) that can rotate about an axis of rotation (88) that extends vertically, in which the impeller blades (84) are provided with outer edges (94) that conform to the envelope (96) of the chopper knives (76) and follow it very closely and are not in contact with it.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.