Wheel supported implement for working and grading soil
US6739404B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 10, 2001 |
| Grant date | May 25, 2004 |
| Priority date | — |
| Expiry date | Jul 26, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F3/8152
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An implement for preparing seed beds and lawns, and for grading tracks and show rings, includes a main frame upon which scarifying teeth are mounted to penetrate and scarify the soil, tines which work the soil and prepare the final grade, and a blade for grading soil. The frame is supported on wheels, and attached to a tractor by a three-point hitch. Accordingly, the depth of penetration of the scarifying teeth and the angle at which the tines work the soil, may be adjusted by pivoting the implement about the axis defined by the axles of the wheels by using the tractor hydraulic system. Since this degree of adjustment is limited, the wheels are mounted to the frame by an adaptor plate including multiple openings, any of which the axle of a wheel to thereby adjust the height of the frame relative to the ground to accommodate both loose or hard soil. The implement may also be attached to the front plate of a front end loader, in which the front plate angle relative to the lift arms of the skid steer loader may be adjusted to effect the depth of penetration of the scarifying teeth and angle at which the tines work the soil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.