Agricultural implement frame having a transport configuration and a working configuration
US6321852A · kind A · utility
21Cited by
14References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 26, 2000 |
| Grant date | Nov 27, 2001 |
| Priority date | — |
| Expiry date | Jan 26, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B73/005
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An agricultural implement frame comprises a main frame having ground engaging wheels, a mast extending upwardly and forwardly from the main frame, a truck slidably mounted on the mast, and a carrier frame pivotally mounted to the truck. Two hydraulic lift cylinders are used to raise and lower the truck on the mast. A hydraulic pivot cylinder is used to pivot the carrier frame relative to the truck on a vertical pivot located on the truck. Rollers forming a bearing facilitates the sliding movement of the truck on the mast.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.