Impeller with swept back blades for a tailings conveyor of an agricultural combine
US6976914B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2003 |
| Grant date | Dec 20, 2005 |
| Priority date | — |
| Expiry date | Jul 22, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01F12/52
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A rotary impeller for a tailings conveyor of an agricultural combine, for threshing tailings and propelling the tailings through a portion of the conveyor, including a mounting portion mountable to a rotatable member for rotation in a predetermined rotational direction about a rotational axis, a plurality of blades extending generally radially outwardly from the mounting portion, each of the blades including a surface facing in the rotational direction including a radially outermost threshing portion for threshing the tailings and propelling the tailings in the rotational direction through the portion of the conveyor, and a tailings deflecting portion disposed between the threshing portion and the mounting portion, the tailings deflecting portion having a convex shape for deflecting and directing tailings contacted thereby during the rotation in a radially outward direction into a rotational path of the threshing portion so as to be threshed thereby and accelerated through the conveyor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.