Earth working – Automatic power control – Obstruction sensing type
Patent
1990-04-27
1992-04-14
Taylor, Dennis L.
Earth working
Automatic power control
Obstruction sensing type
2502311, 250239, 318587, A01B 6900
Patent
active
051039176
ABSTRACT:
An agricultural implement guidance control system has a wand sensor housing which contains a vertical shaft attached to the wand bracket and thus to the sensing wands. Affixed to the shaft is a photoelectric light source which projects a beam of light at a pair of photoelectric sensors. The photoelecltric sensors are mounted on a printed circuit board which is mounted to a slide plate. The slide plate is supported by slide supports and the slide supports have grooves in which the edges of the slide plates are positioned. The slide plate is able to slide left or right inside the grooves. An adjustment screw threadably engages a flange on the slide plate. The rotation of the adjustment screw causes the adjustable positioning of the slide plate to the left or right depending upon the rotation of the screw. Calibration of the guidance system with respect to the position of the sensing wands is accomplished by selective rotation of the adjustment screw.
REFERENCES:
patent: 2596994 (1952-05-01), Haberland
patent: 3902063 (1975-08-01), Oelsch et al.
patent: 4616712 (1986-10-01), Jorgensen
patent: 4883128 (1989-11-01), O'Neall et al.
patent: 4930581 (1990-06-01), Fleischer et al.
"Orthman Manufacturing's New MPIII Tracker Guidance System", Machinery Today, Farm Journal Jun./Jul. 1989.
"The Guide" by Lincoln Creek Mfg., Owner's Guide and Parts List, received 2/21/89.
Sukup Auto-Guide Guidance System Sales Brochures, Sukup Mfg.
Machinery Today Article on "The Auto-Guide System", Farm Journal, Apr. 1, 1989, p. 32.
"End Cultivator Blight", Farm Industry News, Jul. 1989, p. 57.
Sukup Manufacturing Company
Taylor Dennis L.
Thompson Jeffrey L.
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