Crop threshing or separating – Concave – Grid or grate
Patent
1990-03-15
1991-01-29
Novosad, Stephen J.
Crop threshing or separating
Concave
Grid or grate
460108, A01F 1226, A01F 1228
Patent
active
049883267
ABSTRACT:
A grid insert assembly for a concave of an agricultural threshing machine having a frame formed from two side walls that define a slot. The slot engaging a cross bar of the concave. Each side wall is provided with an engagement aperture. The engagement apertures are coaxial with a grid insert mounting aperture located on the concave cross bar. A U-shaped mounting pin, having an engagement leg is selectively positioned into and out of the slot through the engagement apertures for securing the grid insert to the concave cross bar. A mounting leg of the mounting pin is slidably positioned in mounting ears extending from the grid insert. A latching assembly for latching the mounting pin is formed by an elastomeric sleeve which engages the mounting leg of the mounting pin.
REFERENCES:
patent: 2686523 (1954-08-01), Young
patent: 3957058 (1976-05-01), Komancheck
patent: 4004404 (1977-01-01), Rowland-Hill et al.
patent: 4711075 (1987-12-01), Strong
patent: 4711252 (1987-12-01), Bernhardt et al.
patent: 4875891 (1989-10-01), Turner et al.
"Assembly Instructions for Installing Concave Inserts", DM-H137983; 9400; 9500 and 9600 Combines, John Deere Harvester Works of Deere & Company, East Moline, Ill., 1 page.
John Deere Parts Catalog, 7720 Combine, Harvester Works PC-1667, dated May 31, 1979, 3 pages.
FMO, Fundamentals of Machine Operation, Combine Harvesting, John Deere, 2 pages.
Agricultural Sales Manual, John Deere, Rev. 177, Oct. 1989, printed in the U.S., 2 pages.
Deere & Company
Novosad Stephen J.
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