Concave suspension control system and method for a threshing...

Details Concave suspension control system and method for a threshing... Concave suspension control system and method for a threshing...

2008-03-14

2010-12-28

Pezzuto, Robert E (Department: 3671)

Crop threshing or separating

Concave

Grid or grate

Reexamination Certificate

active

07857690

ABSTRACT:
A method of positioning a concave in a threshing section of an agricultural machine including the steps of selecting and maintaining. The selecting step includes the selecting of a set pressure, a minimum separation distance of the concave from a rotating member and a maximum separation distance of the concave from the rotating member. The maintaining step includes the maintaining of a hydraulic fluid pressure in a hydraulic concave support system that supports the concave at substantially the set pressure while the concave is positioned between the minimum separation distance and the maximum separation distance when crop material is being transported between the concave and the rotating member.

REFERENCES:
patent: 3552396 (1971-01-01), Gerhardt et al.
patent: 6290599 (2001-09-01), Eis et al.
patent: 7001267 (2006-02-01), Behnke et al.
patent: 7452267 (2008-11-01), Bundy et al.
patent: 1950879 (1966-12-01), None
patent: 10353385 (2005-06-01), None
European Search Report dated Jun. 29, 2009, (4 pages).

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