Knife opener for use with an agricultural implement

Planting – Drilling – Furrow opener

Reexamination Certificate

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Details

C111S187000

Reexamination Certificate

active

08079316

ABSTRACT:
A knife opener includes a pair of flared blades designed to cut spaced, but paired furrows. The knife opener is particularly well-suited for use in no-till or minimum-till agricultural operations primarily in conjunction with seed and/or fertilizer placement adjacent a soil cut-line generally in the direction of travel. In addition to being angled away from the main body of the knife, one of the blades is angled forward and the other blade is angled rearward. Seed and/or fertilizer dispensing receivers may be associated with each of the blades.

REFERENCES:
patent: 4638748 (1987-01-01), Kopecky
patent: 5269237 (1993-12-01), Baker et al.
patent: 5537942 (1996-07-01), Wickstrom
patent: 6178900 (2001-01-01), Dietrich et al.
patent: 6408772 (2002-06-01), Lempriere
patent: 6457426 (2002-10-01), Cruson
patent: 6966270 (2005-11-01), Rowlett et al.
patent: 6986314 (2006-01-01), Linnebur et al.
patent: 7096803 (2006-08-01), Bergan
patent: 7290491 (2007-11-01), Summach et al.
patent: 2005/0229826 (2005-10-01), Summach et al.
patent: 2005/0274309 (2005-12-01), Bergan
patent: 000183203 (1986-06-01), None
patent: 002727601 (1996-06-01), None

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