Famous Patents
Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7284620 | Detachable side mount hitch system for an agricultural implement A hitch system for attaching an agricultural implement to a towing vehicle, includes a side mount hitch having a pair of longitudinally spaced and upwardly oriented hitch balls connected to a side of the towing vehicle and a pair of longitudinally spaced hitch arms ... | 10/23/2007 |
| 6938399 | Arrangement for the movement of a working unit The invention concerns an arrangement for the movement of a working unit of an agricultural working implement between a first position and a second position, with an actuator that is provided with a chamber to which a pressurized medium can be applied and that is co... | 09/06/2005 |
| 6098719 | Parallelogram boom devices for mounting agricultural implements to short wheel base tractors and adjusting implement position relative to ground A parallelogram boom device for mounting agricultural implements has a parallelogram arrangement of a first upper beam horizontally and longitudinally aligned with a second upper beam plus a single lower beam longitudinally aligned with the first and seco... | 08/08/2000 |
| 5505268 | Bidirectional field implement An implement for preparing a field includes a ground engaging device that allows the implement to be pushed or pulled on the field. The ground engaging device includes a reversible roller with projections joined to an outer surface thereof to engage the g... | 04/09/1996 |
| 5461995 | Rotary row cleaner with reversible spring A planter includes a pair of toothed wheels which sweep mulch away from the path followed by furrow opening discs. The sweeper wheels are carried on the trailing end of a parallel bar linkage attached to a tool bar by which the planter is pulled. As a res... | 10/31/1995 |
| 5092422 | Multipurpose agricultural tractor A multipurpose horticultural crop tractor combines certain clearance and versatile implement mounting features for accommodating a wide variety of alternative field production operations. A movable operator station provides full bidirectional operator con... | 03/03/1992 |
| 4953625 | Adjustable, pivotable blade for bulldozers and the like The adjustable blade apparatus (10) is adapted for use with an earth moving vehicle (12). It includes a support frame (20) which is pivotable in the vertical plane relative to the vehicle (12). A blade assembly (22) is rotatably secured to a connecting fr... | 09/04/1990 |
| 4540054 | Cultivating attachment for crop harvester support vehicle A cultivator for attachment to a crop harvester including at least one tool frame member with soil tilling tools adjustably mounted relative thereto. A shaft is provided rotatably mounted relative to a support frame of the crop harvester. An actuating mem... | 09/10/1985 |
| 4204578 | Ground-engaging implement assembly A ground-engaging implement assembly for installation on a vehicle includes a U-shaped frame having a bight portion extending around one end of the vehicle and a pair of spaced leg portions extending along and connected to the respective sides of the vehi... | 05/27/1980 |
| 4004640 | Hanger mechanism and sail engaging tool attached to tool bar thereby A hanger mechanism for the attachment of a soil engaging tool to a horizontal tool bar located at the forward end of an agricultural vehicle through a series of pivotally interconnected structures. The hanger mechanism includes an upper and lower arm stru... | 01/25/1977 |
| 3970012 | Soil agitating device An elongated downwardly opening housing is provided for lengthwise advancement over the ground and includes mounting structure for dependingly supporting the housing from a farm implement tool bar. The housing includes front and rear transverse journaled ... | 07/20/1976 |
