Combination seeding, tilling and fertilizing implement
US4770112A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 6, 1987 |
| Grant date | Sep 13, 1988 |
| Priority date | — |
| Expiry date | Mar 6, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C7/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An opener assembly for fertilizing, tilling and seeding in one pass. An opener body is removably attached to an upright support leg and mounts a replaceable fertilizer banding knife. A replaceable sweep blade fixed immediately behind the knife to slice weed roots and firm the seedbed. A seed plenum located above the sweep blade receives a stream of seed through a channel in the opener body and divides the seed into left- and right-hand rows which are sown over the firmed soil. The forward central portion of the sweep is notched and is received over the opener body closely adjacent to the fertilizer knife to provide a compact structure, and a mounting tab at the rear of the sweep cooperates with a bolt and captive nut arrangement to provide quick and easy replacement of the sweep. The entire opener body may be removed from the support leg to change an implement from one type of operation to another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.