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| Number | Title | Issue Date |
| 7347511 | Rotary walker robotic platform A rotary walking device having multiple sequential ground engaging elongated struts interconnected between pairs of annular drive disks. Each pair of drive disks having multiple pivot attachment points for the respective opposing apertured ends of each strut. Each s... | 03/25/2008 |
| 7021720 | Till track vehicle A vehicle that uses a steel lug wheel assembly while in the field and has retractable rubber tires for transport on paved roads. The vehicle is capable of simultaneously performing multiple farm operations in a field. The multiple farm operations include shredding, ... | 04/04/2006 |
| 6264230 | Foldable hand cart A beach cart having a first frame member and a second frame member, the first frame member being pivotably attached to the second frame member; a first payload carrier rotatably attached to the first frame member and removably attached to the second frame... | 07/24/2001 |
| 6042192 | Self-adjusting compactor wheel A compactor wheel that is mountable on an axle of a compaction machine and that automatically adjusts for compacting low density and high density refuse. The compacting surface of the compactor wheel is effectively wide when compacting low density materia... | 03/28/2000 |
| 5451001 | Irrigation system tower support wheel An irrigation system tower support wheel for use in combination with an irrigation system having one or more tower supports, irrigation means and drive means, the support wheel including a generally cylindrical wheel rim having outer and inner surfaces, f... | 09/19/1995 |
| 5046785 | Traction wheel for center pivots and the like A traction wheel has a pair of axially spaced apart annular rims presenting ground engagement surfaces which are inclined radially and axially inwardly toward one another to form the ground into a mound on which the wheel rides. A series of wedge-shaped l... | 09/10/1991 |
| 4432427 | Agricultural tractors and other vehicles A tractor has three pairs of ground wheels: front and rear steerable pairs which cooperate to steer the tractor, and a central pair. The central pair of wheels each are connected to the frame through a hydraulic cylinder and piston assembly which can be c... | 02/21/1984 |
| 4279603 | Flexible paddle wheel structure A flexible paddle wheel structure comprises a pair of axially spaced wheels, having flexible rims, such as, for example, pneumatic tires, with pairs of radially spaced, transverse, flexible members extending between, and attached to, the rims. A flexible ... | 07/21/1981 |
