Combination ripper, mixer and planter
US4213408A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1978 |
| Grant date | Jul 22, 1980 |
| Priority date | — |
| Expiry date | Jul 7, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S111/927
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An agricultural implement is disclosed which is adapted to perform soil ripping, mixing, and seed planting behind a single prime mover. Soil ripping is accomplished by a parabolic pointed shank attached to a frame by a pivot bolt and secured by a shear bolt to provide release in the event that an essentially immovable object is struck. Attached to the same framework behind the shank is a pair of mixer wheels for tilling the furrowed soil, and attached behind the mixer wheels is a press pan for smoothing the soil into a seed bed, followed by a seed planter of conventional construction connected to a rear planter bar supported by gauge wheels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.