Dual tungsten carbide boot
US6640731B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 25, 2002 |
| Grant date | Nov 4, 2003 |
| Priority date | — |
| Expiry date | Jun 25, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C7/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A planting tool for depositing seed and/or fertilizer within a furrow including a soil opener and a seed boot attached to the soil opener. The seed boot includes a synclinal shape housing and at least one furrow forming wing that protrudes below the body of the seed boot. Each wing of the seed boot has at least one wear resistant leading insert positioned in front of and in juxtaposition to at least one wear resistant trailing insert that are each secured to at least a portion of the lower forward surface of the wing and that are each in juxtaposition to a portion of a furrow forming edge of the wing. The wear resistant leading insert and the wear resistant trailing insert have cobalt concentrations of from about 15 to 22 weight percent, and from about 8 to 14 weight percent, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.