Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 5031705 | Crop-sensing cultivator A transmitter is mounted on a cultivator hitched to a tractor or the like for emitting a noninvasive sensor beam generally parallel to and in front of a soil-cultivating implement which tills the soil. Mechanism detects echoes from obstructions in the pat... | 07/16/1991 |
| 5025866 | Row following drawn implement with internal steering arm A row following drawn implement includes a transversely extended implement frame and an elongated hitch arm having a forward end adapted for connection to a towing vehicle and a rearward end connected to the frame for pivotal movement about an upright piv... | 06/25/1991 |
| 4930581 | Guidance control apparatus for agricultural implement A guidance system for an agricultural implement pulled by a tractor is disclosed. The implement, such as a cultivator or planter, has ground-engaging discs mounted to a frame or toolbar and includes a control hitch mounted to the conventional three-point ... | 06/05/1990 |
| 4835691 | Positioning system particularly useful for positioning agricultural implements A positioning system for positioning a movable body, such as an agricultural implement, with respect to a reference path constituted of at least one line of objects or a linear object, such as rows of crops. The system comprises a signal-echo distance-mea... | 05/30/1989 |
| 4821807 | Row crop tillage and planting unit guidance system An appaatus is provided for automatically longitudinally shifting a horizontal transverse tool bar and the tillage unit or units supported therefrom relative to the lift hitch of a tractor from which the tool bar is supported responsive to crop row sensin... | 04/18/1989 |
| 4726175 | Harvester guidance control system A guidance control system for a harvester or like machinery includes a steering linkage operatively connected to at least one ground engaging wheel. Harvester steering is controlled through the linkage by either an operator controlled steering wheel or a ... | 02/23/1988 |
| 4703820 | Vehicle guidance means A vehicle guidance system for a tractor has a horizontal scanning laser on the tractor and a target arranged to return the laser beam along its path. When returned laser light is detected, indicating alignment of the beam with the target, the angle of the... | 11/03/1987 |
| 4616712 | Row finder An attachment associated with a tractor mounted implement to enable the implement to be accurately located with respect to the ridges in a ridge planting system or the growing crop plants to more accurately plant or cultivate the ridges in a ridge plantin... | 10/14/1986 |
| 4607716 | Agricultural apparatus with an automatic positioning mechanism and method Automatic steering mechanism for use on apparatus for forming raised beds or ridges and furrows and lowered beds with uniform spacing with the apparatus being of a type comprising a self-propelled vehicle having a steering apparatus for steering the vehic... | 08/26/1986 |
| 4600356 | Underground pipeline and cable detector and process An apparatus and process combining an excavation apparatus with a fully contained underground elongated conductive object detector capable of selectively detecting underground objects such as water pipes and electrical cables. The combination of this inve... | 07/15/1986 |
| 4585071 | Method and apparatus guiding retractable machinery A retractable tool apparatus is adapted to be mounted on a movable vehicle for working the area around and between objects in a row. The tool apparatus includes an extendable and retractable outrigger arm attachable on one of its ends to the vehicle. A wo... | 04/29/1986 |
| 4567689 | Vineyard cultivator A cultivator particularly well adapted for use in vineyards and orchards because of its ability to cultivate the ground between successive plants in the same row includes a main frame that is continuously laterally expandable under control of the operator... | 02/04/1986 |
| 4518043 | Tool apparatus with control to move tool when object approached The disclosure in this patent application includes a retractable in-row tiller device that has a parallelogram carriage structure for supporting the outrigger arm and tiller and for retracting and extending the outrigger arm and tiller in relation to the ... | 05/21/1985 |
| 4482960 | Robot tractors Disclosed is an electro-optical and microcomputer based method and apparatus for automatically guiding tractors and other farm machinery for the purpose of automatic crop planting, tending and harvesting. Also disclosed are means for automatic picking, ex... | 11/13/1984 |
| 4206569 | Weed sprayer A tractor is equipped with a tool bar to which are attached a plurality of cultivators. Sensors are fixed by means of clamps and shanks located over the drill of the planted crop in such a manner that weeds growing above the height of the crop are detecte... | 06/10/1980 |
| 4171723 | Crop uprooting and soil cultivating apparatus and method for use of same Crop uprooting and cultivating apparatus which includes at least one bar having at least one angled edge thereon that extends from a support at least partially across a row to be cultivated or from which crops and/or foliage are to be uprooted. The bar is... | 10/23/1979 |
| 4117888 | Novel field crop-thinning apparatus and method Relates to a method of accurately and rapidly thinning commercial plantings of field crops by a motor-driven apparatus wherein the r.p.m. of the motor is converted into timing pulses and utilized in maintaining a virtually uniform rate of travel, the puls... | 10/03/1978 |
| 4077488 | Guidance assist system for agricultural machines A guidance assist system is mounted on an agricultural machine for directing the lateral movement thereof with respect to the severed edge of the crop material being harvested thereby. The crop, including the severed edge, is periodically, optically, scan... | 03/07/1978 |
| 4033416 | Blade means for row crop thinning machine A cutting blade is carried on a shaft rotatable about an axis positioned adjacent a row crop. The blade extends across the longitudinal centerline of the row and cuts plants as the machine moves forward until a sensing means registering on forwardly posit... | 07/05/1977 |
| 3972381 | Sensor arrangement for harvester of stalk-type row crop A harvester displaceable along the ground in a transport direction determined by a steering mechanism itself operated by a controller has a sensor formed of a pair of sensor arms pivotal on the harvester about pivot axes spaced apart transverse to the har... | 08/03/1976 |
| 3959924 | Automatic spot sprayer Apparatus for treating plants, such as weeds with an herbicide, which plants have grown to at least a predetermined height, including a sensor comprising an adjustable, electrically conductive probe arm adapted to contact such plants coupled to electrical... | 06/01/1976 |
| 3955626 | Multi-row vineyard cultivator A multi-row vineyard cultivator for cultivating a plurality of generally parallel rows of grape vines simultaneously having a wheeled framework adapted to travel over the rows with first and second outriggers mounted on the framework extending from the fr... | 05/11/1976 |
