Ridge tillage attachment for planters
US4974683A · kind A · utility
16Cited by
25References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1989 |
| Grant date | Dec 4, 1990 |
| Priority date | — |
| Expiry date | Nov 16, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B39/14
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A ridge tillage attachment includes springs associated with a linkage which guides a tool and wheel support beam for vertical movement, the springs being mounted within the linkage envelop to provide a compact arrangement and being operative to apply required forces to to a tool and wheels carried by the beam, while facilitating disassembly of the attachment when desired. The attachment also includes a structure which securely connects wheel axles to the support beam with a clamping action while being adjustable to provide a large range of relative positional values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.