Chain reel for tillage implement and method

Earth working – Rolling – rotating or orbitally moving tool – Tool has circumferentially spaced teeth – tines – blades or...

Reexamination Certificate

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C172S701000

Reexamination Certificate

active

07942210

ABSTRACT:
In lieu of rigid bars, a tillage reel utilizes a number of elongated flexible elements such as lengths of link chain that are spaced circumferentially around the reel and extend axially thereof. The flexible elements bow outwardly by centrifugal force as the reel rolls along the ground during tillage operations to impact and fracture clods encountered at the lower front extremity of the reel. When the reel is used in connection with strip till operations, the flexible elements bow upwardly and inwardly along the lower periphery of the reel as they engage and conform to the transverse cross-section of the strip till berm, thereby avoiding destruction of the berm notwithstanding the clod-pulverizing action provided by the flexible elements.

REFERENCES:
patent: 1591396 (1926-07-01), Mills
patent: 3167132 (1965-01-01), Bucher
patent: 3704575 (1972-12-01), Daniel et al.
patent: 4260027 (1981-04-01), Langan
patent: 5797460 (1998-08-01), Parker et al.
patent: 6068061 (2000-05-01), Smith et al.
patent: 6681868 (2004-01-01), Kovach et al.
patent: 7065945 (2006-06-01), Hurtis
patent: 7156186 (2007-01-01), Knobloch et al.

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