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| Number | Title | Issue Date |
| 6321850 | Tillage implement with offset cam for packers A forwardly folding tillage implement carries a number of ground engaging tools on a tool gang frame disposed to the rear of a carrier frame. A rockshaft is disposed between the carrier frame and the tool gang frame and is movable between four rotated pos... | 11/27/2001 |
| 4336760 | Earth working apparatus including aerators and material dispensers An earthworking implement comprising a frame on which are supported front wheels, rear wheels and a rearmost dolly wheel. An aerator member with blades is rotatably secured to the frame between the front and rear wheels. The dolly wheel is mounted on the ... | 06/29/1982 |
| 4301872 | Plow with correlated pull bar adjustment and support wheel steering An articulated plow is provided with a laterally swingable pull bar (31) and steerable intermediate support wheels (46, 47) which are controlled by a hydraulic system providing correlated movement through parallel connected hydraulic jacks (37, 66). A lat... | 11/24/1981 |
| 4055222 | Earth moving implement with adjustable wheel assembly The implement includes a bucket having a lower scraping blade. A pair of laterally spaced ground-engaging wheels are pivotally supported on the rear of the bucket and may be swung upwardly and downwardly in unison to change the elevation of the bucket. On... | 10/25/1977 |
