Foreign object protection device for a harvesting machine

Details Foreign object protection device for a harvesting machine Foreign object protection device for a harvesting machine

1990-02-22

1991-05-28

Bui, Thuy M.

Crop threshing or separating

With stone trap

Pivoting trap

A01F 1216

Patent

active

050190148

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.

REFERENCES:
patent: 3576188 (1971-04-01), Tanis
patent: 4440179 (1984-04-01), Bassett et al.
patent: 4446875 (1984-05-01), Deleu
patent: 4657029 (1987-04-01), Helm et al.

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