Soil working implement with retractable wheels
US7540331B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 10, 2006 |
| Grant date | Jun 2, 2009 |
| Priority date | — |
| Expiry date | Dec 31, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B73/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A soil working implement is dragged behind a towing vehicle. The implement includes a hitch part and a soil working part. The soil working part may be pivoted about the hitch part by extending or retracting a longitudinal linkage member interposed between the hitch part and the soil working part. Wheels are mounted on the implement and may be raised and lowered relative to the implement by an operator-actuated mechanism, to thereby permit the soil working part to be raised off of the ground by lowering the wheels to thereby facilitate movement of the implement from one treatment area to another, whereupon the wheels may be raised to permit the soil working part to engage the soil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.