Pyramidal shaped, hardened insert for an agricultural tool
US5314029A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 15, 1992 |
| Grant date | May 24, 1994 |
| Priority date | — |
| Expiry date | Jun 15, 2012 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/2875
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A self-sharpening pyramidal shaped insert of a refractory hard metal for use as a leading penetrating element of a soil opener member of an agricultural tool. The insert includes a boss member of a generally frustoconical shape including a circular bottom and outwardly curved side surface extending upwardly from the circular bottom and terminating in a flange, and a penetrating tip having four nonparallel triangular sides, each triangular side having a common leg with a bordering triangular side and a third leg contiguous the flange. The triangular sides converge to a common vertex. The insert inhibits wear of the agricultural tool and contributes to proper soil flow as the agricultural tool cuts a slice in the soil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.