Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 6941735 | Landscape maintenance device and method of use thereof A landscape maintenance device having a power unit and a variety of possible dismountable tools. The device allows for the easy transfer of tools onto and off of the power unit by hinge arrangement with the power unit forming one side of the hinge and the tool formi... | 09/13/2005 |
| 5730453 | Non-tipping tricycle A tricycle has two non-steerable rear wheels and a single steerable front wheel. One of the rear wheels is driven by a chain-sprocket drive system that includes a drive sprocket mounted on a front frame and a driven sprocket mounted on a rear frame. The f... | 03/24/1998 |
| 5174593 | Camera dolly A steering compensator has a shaft with a first shaft section offset from a central shaft section. A second shaft section of the shaft is offset from the first and central shaft sections. A first drive member is rotatably attached to the first shaft secti... | 12/29/1992 |
| 4815265 | Harvesting header having timed double sickle toothed belt drive Sprockets of a toothed belt drive for a double sickle harvesting header are carefully aligned relative to each other and to the toothed belt so that the belt can be twisted about its longitudinal axis during advancement along a closed loop path of travel ... | 03/28/1989 |
| 4642071 | Toothed belt drive between oblique shafts A pair of reaction and guide roller are located between the toothed gears of two oblique shafts and act on the back of two branches of a toothed belt driving the gears, the axis of each roller being positioned at a substantially intermediate angularity wi... | 02/10/1987 |
| 4597746 | Fan drive system for transverse engine A system is provided for driving a cooling fan (19) of a vehicle including a transverse, water-cooled engine (E). A main drive pulley (11,13) is driven by the engine and a fan drive assembly (15) is mounted on the vehicle radiator (R) and includes a drive... | 07/01/1986 |
| 4573583 | Fruit sizer A fruit sizer employs an in-feed chute which divides fruit among a plurality of sizing runs evenly. This is accomplished by locating the apices of the dividers with respect to a grade table, or other feed mechanism, so that the fruit is divided evenly. A ... | 03/04/1986 |
| 4372442 | Torque-transmitting drive A torque-transmitting drive having a driving member and a driven member spaced therefrom with an endless transmission belt engaging the members to transmit torque from the driving member to the driven member. The endless belt is folded over one of these m... | 02/08/1983 |
| 4187924 | Rotary mower belt drive A right side discharge mower mounted on a tractor having a rear, clockwise-turning power take off shaft is provided with a belt drive including a drive pulley on the power take off shaft, a pair of upper idlers above the drive pulley, a pair of lower idle... | 02/12/1980 |
