Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7156328 | System and method for determining a pivot center and radius based on a least squares approach A system and method for determining the center and radius based on a least squares approach is disclosed. In one embodiment, a farmer drives through a given arc of a circular field in question and periodically takes position measurements. In another embodiment, a Le... | 01/02/2007 |
| 7121483 | Liquid manure spreading tool bar A liquid manure spreading tool bar for use on a manure spreader, wherein the manure spreader has a tank and a pump, and wherein the spreading tool bar has a supporting frame externally mounted onto the tank, a manure distributor mounted onto the supporting frame, a ... | 10/17/2006 |
| 6928339 | GPS-based control system and method for controlling mechanized irrigation systems A GPS-based control system for irrigation systems includes a power supply, a nonvolatile memory for storing a first set of coordinates corresponding to a reference position for the irrigation system, circuitry for receiving GPS data and using the data to generate a ... | 08/09/2005 |
| 6394370 | Reciprocating wand vehicle wash apparatus A wash apparatus for automotive vehicles includes a plurality of reciprocating wands which are driven by a compact drive/linkage system to move the wands in unitary reciprocating motion as a vehicle is moved adjacent thereto. Each wand has a turbo nozzle ... | 05/28/2002 |
| 6293475 | Foldable boom for an agricultural sprayer The present disclosure relates to a folding boom for an agricultural sprayer. The boom includes a first piece pivotally connected to a second piece. The folding boom also includes a hydraulic cylinder for hydraulically pivoting the first boom piece relati... | 09/25/2001 |
| 6085999 | Corner irrigation system An irrigation system is disclosed which includes a center pivot support having an elongated main water boom pivotally connected thereto which extends outwardly therefrom. An elongated extension boom is pivotally connected at its inner end to the outer end... | 07/11/2000 |
| 6039273 | Corner pivot irrigation machine A corner pivot irrigation machine comprising a main arm extending outwardly from a center pivot structure supported upon and driven by a plurality of non-steerable drive towers. An elongated corner arm is pivotally secured to the outer end of the main arm... | 03/21/2000 |
| 4961531 | Irrigation method and apparatus A mechanized irrigation system and method of irrigation is disclosed and claimed. The system 10 comprises a main irrigation pipe 11 carrying a plurality of sprinklers 15 for applying liquid to a land 13 in relatively smaller regions along the pipe 11. A w... | 10/09/1990 |
| 4795099 | Correction steering for a linearly movable irrigation system Correction steering for a linearly movable irrigation system, consisting of interconnected pipes carried by motorized irrigation towers, whereby at least one irrigation tower constitutes a steering unit for correction of the irrigation system in the case ... | 01/03/1989 |
| 4763836 | Irrigation system for precise water and chemical application Apparatus for precise water and liquid chemical application to agricultural fields is provided comprising a control platform with two motors, each motor driving a separate set of drive wheels. The speed of the first platform motor being selectable, the sp... | 08/16/1988 |
| 4674681 | Irrigation system and apparatus This is concerned with an irrigation system or mechanism which is constructed and arranged and intended to water non-circular fields which may be considered polygonal sided intersecting at the corners. The system and method includes the use or combination... | 06/23/1987 |
| 4632494 | Linear moving irrigating apparatus A self-propelled, linear-forwardly, relatively slow-moving irrigating apparatus has a main frame and master drive unit carrying a rotating, water-supplying, pipe-like, axle shaft that provides a side-extending wheel-line along which are spaced what may be... | 12/30/1986 |
| 4522338 | Irrigation system A self-propelled irrigation system that is fully automated to irrigate regular and irregular shapes of land. The system includes a self powered cart and hose connection system by which access is made to various points along the length of a water supply ma... | 06/11/1985 |
| 4463906 | Guidance system for lateral move irrigation machines A guidance system for a lateral move irrigation machine of the type having an elongate boom mounted on a plurality of motor driven towers which drive the boom along the field in a straight line path. A plurality of check points in the field are establishe... | 08/07/1984 |
| 4358055 | Guidance system for lateral move irrigation machines A guidance system for maintaining a lateral move irrigation machine along its intended path of movement. The center support tower of the machine carries a guide arm which is pivotal relative to the tower about a vertical axis. A guide wheel on the arm tra... | 11/09/1982 |
| 4354637 | Self-propelled reversible irrigation machine Oppositely turning continuously driven front and rear traction wheels are carried on a common frame which is rockable on a transverse axis with respect to wide stance carriage wheels. A hose reel located centrally on the rockable frame is driven in rotati... | 10/19/1982 |
| 4352460 | Automatic furrow guide A furrow guide on one end of the moving pipe of an irrigation system determines the horizontal distance from the end of the pipe to a furrow. The determination of this horizontal distance is used to control functions of the irrigation system such as to gu... | 10/05/1982 |
| 4284240 | Water propelled prime mover in agricultural irrigation systems A water-propelled prime mover in and for agricultural irrigation systems. The hose to be coupled to and pulled by the prime mover, to supply water under pressure for irrigation purposes, also supplies water pressure for torquing the wheel line of the irri... | 08/18/1981 |
| 4277028 | Irrigation system and drive unit therefor An irrigation system for irrigating an area of a field and which includes a liquid conduit extending over a portion of said area to be irrigated. The conduit is supported by wheels which rotate with rotation of the conduit. The system includes a drive uni... | 07/07/1981 |
| 4260109 | Reel transport alignment system A reel transport alignment system wherein movable structure carries a reel such as a winch or a capstan, either of which is provided with a flexible elongate member such as a cable that is to be maintained and anchored at a fixed point spaced from the mov... | 04/07/1981 |
| 4230275 | Self-guided reversible two speed row crop irrigator A wheeled irrigator carriage has a fulcrum around which a piping frame can rock at the ends of crop rows to lift one traction wheel of the irrigator and lower a second traction wheel at the other end of the irrigator into driving engagement with the groun... | 10/28/1980 |
| 4192340 | Agricultural irrigation system and components therefor In an agricultural irrigation system comprising an elongate wheel line having an elongate, essentially rectilinear, central, water conveying conduit and a series of wheels keyed to and supporting such conduit; the inclusion in said irrigation system of a ... | 03/11/1980 |
| 4185774 | Self-steering crop irrigator An irrigation boom of sufficient length to span a plurality of crop rows has multiple angularly adjustable dual valved water distributors along its length and is carried on a utility platform which mounts a self-contained power drive means for dual tracti... | 01/29/1980 |
| 4151858 | Agricultural irrigation system and components therefor In an agricultural irrigation system comprising an elongate wheel line having an elongate, essentially rectilinear, central, water conveying conduit and a series of wheels keyed to and supporting such conduit; the inclusion in said irrigation system of a ... | 05/01/1979 |
| 4074856 | Greenhouse watering apparatus This greenhouse watering apparatus has a horizontal support member running centrally for the length of the greenhouse, suspended from above, as from the roof of the greenhouse. A carriage depends from the support member and has trolley wheels rolling alon... | 02/21/1978 |
