Spring-loaded tillage implement

Details Spring-loaded tillage implement Spring-loaded tillage implement

1984-04-03

1986-01-14

Johnson, Richard J.

Earth working

Rolling, rotating or orbitally moving tool

With spring means other than for detent

172710, 267 20R, A01B 6104

Patent

active

045640750

ABSTRACT:
A tillage implement for attachment to agricultural soil cultivation machinery. The tillage implement includes a knee having a knee body adapted to be attached to the agricultural machinery. A pivot arm is pivotably attached to the knee body and moves between down and up positions. A tillage blade is rotatably attached to the downward end of the pivot arm and is adapted to roll over and engage the soil being cultivated. A spring is adapted to apply pressure directly to the pivot arm to bias the downward end thereof toward its down position, the knee being adapted to contain and substantially enclose the spring to protect the spring from becoming fouled with foreign matter.

REFERENCES:
patent: 1359055 (1920-11-01), Graham
patent: 1752694 (1930-04-01), Recchia
patent: 2654967 (1953-10-01), Small
patent: 3319589 (1967-05-01), Moran
patent: 3601201 (1971-08-01), Schmitz

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