Disc harrow agricultural implement

Details Disc harrow agricultural implement Disc harrow agricultural implement

2007-06-19

2009-10-27

Pezzuto, Robert E (Department: 3671)

Earth working

Rolling, rotating or orbitally moving tool

Plural groups of disks

C172S311000, C172S568000, C172S612000

Reexamination Certificate

active

07607489

ABSTRACT:
An agricultural implement includes first and second outer harrows positioned adjacent front and left sides and front and right sides of a frame, respectively, at generally opposite diagonal directions. Third and fourth harrows are similarly positioned adjacent rear and left sides and rear and right sides of the frame, respectively, at generally opposite diagonal directions. The implement may include inner harrows positioned to close gaps left by the outer harrows and positioned at generally opposite diagonal configurations. Each harrow includes a plurality of discs and a chain with a plurality of links that are rotatable about the longitudinal direction of the chain so as to affect multi-purpose actioning of the soil by being able to level the surface rather than dragging material while also breaking up or uprooting weeds or stubble. Left and right sides of the frame are foldable upwardly and inwardly for transport and storage.

REFERENCES:
patent: 2191537 (1940-02-01), Miller
patent: 2825983 (1958-03-01), Finn
patent: 3327787 (1967-06-01), Adee
patent: 4893682 (1990-01-01), Smallacombe
patent: 5794712 (1998-08-01), Phillips
patent: 5881820 (1999-03-01), Baker
patent: 0745395 (1980-07-01), None
patent: 0982551 (1982-12-01), None
patent: 1523061 (1989-11-01), None

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