Harvesters – Motorized harvester – With condition-responsive operation
Patent
1985-02-13
1988-01-26
Croyle, Carlton R.
Harvesters
Motorized harvester
With condition-responsive operation
56DIG15, 130 27JT, A01D 7518
Patent
active
047209623
ABSTRACT:
Apparatus for picking up and conveying crop has a high-speed rotor 21 mounted on a mobile frame 50 for movement over the ground to pick up previously cut crop. A hood 54 extends around part of the front of the rotor and moves relative to the frame in response to the crop to effect automatic adjustment of the clearance. Heavy unwanted objects, whether metallic or non-metallic, are detected by an impact detector 25A. Metallic objects (whether large or small) are detected by an electromagnetic detector 25B. The detectors are positioned in various alternative locations, either on the moving hood, or on static portions of the frame.
REFERENCES:
patent: Re23972 (1955-03-01), Renning
patent: 3675660 (1972-07-01), Girodat
patent: 3676988 (1972-07-01), Hauser-Lienhard
patent: 4233803 (1980-11-01), Davis et al.
patent: 4294062 (1981-11-01), Seymour
patent: 4322937 (1982-04-01), Hollmann
patent: 4344074 (1982-08-01), Strasser et al.
patent: 4433528 (1984-02-01), Bohman
"Electronic Metal Detection for Forage Harvesters by C. E. Bohman and T. L. Stiefvater, in Grain and Forage Harvesting, pp. 270 to 273, published in Proc. Int. Grain & Forage Harv. Conf. ASAE/CIGR, Ames, Iowa, Sep. 1977".
Croyle Carlton R.
National Research Development Corporation
Olds T.
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