Earth working – Tool – standard or connection – Subsoilers
Patent
1992-06-15
1994-05-24
Crowder, Clifford D.
Earth working
Tool, standard or connection
Subsoilers
172747, 172770, 172772, 111123, A01C 2300
Patent
active
053140290
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.
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Crowder Clifford D.
Izaguirre Ismael
Kennametal Inc.
Meenan Larry R.
Prizzi John J.
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