Beveled edge thin cutting knife

Details Beveled edge thin cutting knife Beveled edge thin cutting knife

2007-11-06

2007-11-06

Ashley, Boyer D. (Department: 3724)

Cutlery

Blades

Toothed or waved

C030S356000, C030S357000, C083S835000, C083S847000

Reexamination Certificate

active

11120520

ABSTRACT:
A knife is disclosed for cutting crop materials, and includes a base portion having an interior edge and a pair of end edges. The base portion has an exterior region opposite the interior edge and has opposite major faces. The knife further includes a plurality of teeth extending from the base portion, with each tooth being defined by a perimeter edge. The perimeter edge of the tooth includes a leading edge portion and a transition edge portion extending between the leading edge portion of the tooth and an adjacent tooth. The leading edge portion is formed by a leading edge surface lying substantially in a plane that is oriented at a first bevel angle with respect to one of the major faces. The transition edge portion is formed by a transition edge surface that is oriented with respect to one of the major faces at a second bevel angle.

REFERENCES:
patent: 276951 (1883-05-01), Baker
patent: 1929838 (1933-10-01), Crane
patent: 3022621 (1962-02-01), Zavarella
patent: 4802396 (1989-02-01), Kuklinski
patent: 6367533 (2002-04-01), Pitzen

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