Lightweight concave having removable grids

Details Lightweight concave having removable grids Lightweight concave having removable grids

1995-09-22

1997-03-25

Melius, Terry Lee

Crop threshing or separating

Concave

Grid or grate

460110, A01F 1228

Patent

active

056139071

ABSTRACT:
The invention is directed to a concave for a rotary crop processing unit for an agricultural combine. The concave comprises a frame to which is releasably mounted a grid. The grid comprises a plurality of curved rods to which are projection welded a series of straight bars. The bars are perpendicular to the rods. The grid is held in place by a mounting assembly which is formed by six mounting ears that are welded to the frame that clamp the grid against a curved rim. A trapping lip is also used to trap one end of the grid in the frame.

REFERENCES:
patent: 4192322 (1980-03-01), Wilson
patent: 4422463 (1983-12-01), West
patent: 4499908 (1985-02-01), Niehaus
patent: 4875891 (1989-10-01), Turner et al.
patent: 4909772 (1990-03-01), Kuchar
patent: 5024631 (1991-06-01), Heidjann et al.
patent: 5057056 (1991-10-01), Kambeitz
Projection Welding article, pp. 434, 438-439, 448-450, 452-453, and 464. (Date unknown).
Resistance Welding article, pp. 13-38 thru 13-40. (Date unknown).

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