Foreign object protection device for a harvesting machine
US5019014A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1990 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | Feb 22, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01F12/16
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A harvesting machine is provided with a foreign material protective device to extract stones, sand and other material from the harvesting goods which are gathered by the header. With the present invention, the protective device is provided with a housing defined by two longitudinal walls, perpendicular to the flow of crop material, and two side walls, parallel to the flow of crop material. The longitudinal walls of the housing diverge slightly towards the outlet opening of the housing. The outlet opening is closed by a door having an impeller which extends into the housing when the door is closed. The impeller ejects material from the housing through the outlet opening when the door is opened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.