Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 7150419 | Trailer front mounted sprayers The sprayer trailer has a trailer frame with a font end and a rear end. A pair of wheels are connected to the trailer frame. A hitch assembly includes a rear mast with a lower end connected to the trailer frame and a front mast with a front mast top end connected to... | 12/19/2006 |
| 7073816 | Multi-use trailer An adjustable width trailer including a center frame with a center deck, and attached tongue and an attached guide beam that is transverse to the direction of forward movement. Left and right wheel support assemblies are slidably mounted on the guide beam. Left and ... | 07/11/2006 |
| 6314666 | Material moving blade The material moving blade has a moldboard assembly with a lower moldboard portion and an upper moldboard portion. A hinge connects the upper moldboard portion to the lower moldboard portion for pivotal movement about a horizontal axis. An upper cutting ba... | 11/13/2001 |
| 6119608 | Seed furrow closing and covering disk The planer row unit has a unit frame with a front member that is adapted to be secured to a tool bar. A sub frame is secured to the front member by parallel links. A furrow opener disk, a seed shoe and a gauge wheel are secured to the subframe. A cam plat... | 09/19/2000 |
| 5630547 | Sprayer boom self-leveling lockout and method of sprayer boom operation A sprayer boom assembly (14) includes a center boom (72), left inner and outer wing booms (100 and 106), and right inner and outer wing booms (110 and 116). A left wing hydraulic cylinder (120) pivots the left inner and outer wing booms (100 and 106) betw... | 05/20/1997 |
| 5540290 | Toolbar folding wing lock The toolbar (10) includes a center section (12), a first wing (14) and a second wing (16). The first wing (14) is pivotally attached to the center section (12) by a first wing pivot pin (132). A double acting hydraulic cylinder (154) for pivoting the firs... | 07/30/1996 |
| 5529128 | High speed row crop cultivator The row crop cultivator includes a cultivation unit (10) with a unit frame (12) attached to a tool bar (21) by parallel links (28 and 34). The unit frame (12) is supported by a pair of gauge wheels (14 and 16). A disk coulter (18) is mounted on the unit f... | 06/25/1996 |
| 5333559 | Row crop cultivator and seeding attachment A row crop cultivator is provided with a seed dispensing manifold attached to and spanning the lay shares forming a part of its middleworker assembly. The seed distribution manifold is designed to randomly distribute seeds fed into it from a towed planter... | 08/02/1994 |
| 4834189 | Row crop cultivator An improved row crop cultivator for use in minimum tillage applications is described. A plurality of ganged cultivating units are mounted on a tool bar adapted to be towed behind a tractor vehicle. Each cultivating unit comprises a frame which is supporte... | 05/30/1989 |
| 4693331 | Tractor boom An elongated boom is pivotally mounted to the forward portion of a tractor and includes a pair of drive/steering wheels mounted to the forward end portion thereof. An electrically actuated, hydraulic control system provides for direction control and rotat... | 09/15/1987 |
| 4637547 | Control method and apparatus for liquid distributor A liquid sprayer has a tank for storing liquid, a boom supporting spraying nozzles, and a pump and liquid control system for supplying liquid under pressure to the spraying nozzle in a manner that maintains substantially uniform liquid dispensing density ... | 01/20/1987 |
| 4632417 | Bi-fold hinge for a folding toolbar A toolbar having a fixed center section and folding wing sections is mounted to and drawn by a tractor. The wings are each connected to the center section by a bi-fold hinge assembly which allows the wing either to fold upwardly for transport or to a forw... | 12/30/1986 |
| 4560011 | Cultivator row unit with ridger/bedder implement An inter-row crop cultivator for use particularly in severe residue conditions such as in minimum tillage conservation applications is disclosed. A leading gauge wheel providing support and soil surface tracking is immediately trailed by two laterally dis... | 12/24/1985 |
| 4530463 | Control method and apparatus for liquid distributor A liquid sprayer has a tank for storing liquid, a boom supporting spraying nozzles, and a pump and liquid control system for supply liquid under pressure to the spraying nozzles in a manner that maintains substantially uniform liquid dispensing density in... | 07/23/1985 |
| 4520876 | Gauge and guide wheel assembly A guide and gauge wheel assembly for a tool bar row crop planter has an arm mounted on the tool bar and pair of wheels rotatably mounted on non-linear axles. The axles are selectively mounted on lateral sleeves and upwardly and outwardly inclined sleeves ... | 06/04/1985 |
| 4518047 | Tool bar with slidably insertable ballast block Ballast blocks are located within a tool bar of an agricultural implement to increase its weight. Modular blocks of concrete are inserted into the tool bars and held by end retainers. The blocks are provided with bevels and notches for cooperation with an... | 05/21/1985 |
| 4467872 | Telescoping row marker A telescoping row marker for use with a conventional agricultural tillage apparatus such as a tractor carried, or pulled, planter, cultivator or the like; for the alignment of soil working implements with crop rows is disclosed. Positioned within a hollow... | 08/28/1984 |
| 4466492 | Earthworking implement having spring biased arms A rotary hoe has a tool bar mounted on a tractor and a plurality of individually pivoted arms carrying hoe wheels. Springs bias the arms in a downward direction to force the hoe wheels into the soil. A rotatable torsion tube supports the springs. An adjus... | 08/21/1984 |
| 4461355 | Cultivator row unit with ridger/bedder implement An inter-row crop cultivator for use particularly in severe residue conditions such as in minimum tillage conservation applications is disclosed. A leading gauge wheel providing support and soil surface tracking is immediately trailed by two laterally dis... | 07/24/1984 |
| 4428437 | Mount assembly including structure to effect substantially constant biasing force A yielding mount assembly connecting a movable arm to a support. The arm is adapted to be attached to a number of structures including an earthworking tool, a rotary hoe wheel, a belt tightener roller, and a wheel supporting a vehicle. The mount assembly ... | 01/31/1984 |
| 4425972 | Split ring spring for earth working tool An earthworking tool having a biased trip assembly for yieldably holding the tool in a ground working position, allowing the tool to move over an obstacle, and return the tool to its earthworking position. The trip assembly has a stationary hinge member m... | 01/17/1984 |
| 4377979 | Conservation tillage row crop planter system The planter includes a number of forward tillage units each followed by an aligned planting unit. Both units are independently mounted by four-bar linkages to the planter frame. Each tillage unit includes a leading banded coulter followed by a pair of rol... | 03/29/1983 |
| 4267767 | Position lock A manually operable position lock for a hydraulic actuator (10) adding a cylinder (20) and a piston rod (22) with a stop finger (61) for actuating a push rod (60) to close a valve (32) and prevent fluid egress from the cylinder. The lock includes a pivot ... | 05/19/1981 |
| 4247913 | Protection circuit for storage of volatile data A protected memory circuit for use with an electronic data system includes a memory element such as a shift register, and memory control or lock means to selectively control enablement of the memory element for read/write operations. A separate power supp... | 01/27/1981 |
| 4224466 | Combined data input and test circuit Input channels are provided for receiving data pulses from sensors or other parts of an electronic data system. Filters, for examle r-f decoupling filters, are provided for each channel prior to passing the pulses to a utilization device, such as a counte... | 09/23/1980 |
| 4116282 | Agricultural implement with wing lift A mechanism including a linear hydraulic motor for displacing the wing of an agricultural field implement through 180 degrees about a horizontal axis so that it lies inverted on the body of this implement. A special feature of the mechanism is that the ar... | 09/26/1978 |
