Harrow

Details Harrow Harrow

1981-08-10

1984-01-03

Johnson, Richard J.

Earth working

Diverse tools

Including spring formed tool or standard

172707, 172643, 56400, A01B 3302, A01B 2302

Patent

active

044237871

ABSTRACT:
A harrow mounted on an earthworking tool works the soil adjacent the tool. The harrow has a clamp assembly mounted on the body of a spring earthworking tool. A pair of coil springs are mounted on the clamp assembly. Each coil spring is connected to a downwardly directed earthworking tine.

REFERENCES:
patent: 2990021 (1961-06-01), Johnson et al.
patent: 3209841 (1965-10-01), Van Der Lely et al.
patent: 3212585 (1965-10-01), Bezzerides
patent: 3245479 (1966-04-01), Dlugosch et al.
patent: 3299965 (1967-01-01), Sokolik
patent: 3322203 (1967-05-01), Johnson et al.
patent: 3575243 (1971-04-01), Mark
patent: 3782481 (1974-01-01), Quanbeck
patent: 3825073 (1974-07-01), Gardner et al.

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