Tillage sweep

Details Tillage sweep Tillage sweep

2005-04-12

2005-04-12

Novosad, Christopher J. (Department: 3671)

Earth working

Tool, standard or connection

Non-rectangular, symmetrical type

C172S770000

Reexamination Certificate

active

06877568

ABSTRACT:
A tillage sweep includes an elongated nose portion having forward cutting edges which are straight and diverge at an angle of approximately 45 degrees from a leading point. The top of the nose viewed from the side is straight and angles upwardly at an angle of approximately eleven degrees from the planar bottom surface to juncture with a stem or connecting portion which forms an angle of about 46 degrees with the plane of the bottom surface. The sweep includes outer wing portions with the cutting edges which are straight and which diverge at an angle of approximately 67 degrees thereby forming an angle of about 11 degrees with the respective forward cutting edges. The overall length of the sweep is greater than the width.

REFERENCES:
patent: 422718 (1890-03-01), Cameron
patent: 1144039 (1915-06-01), Johnson
patent: 1648843 (1927-11-01), Francis
patent: 4583599 (1986-04-01), Anderson
patent: 4787462 (1988-11-01), Nichols
patent: 5176209 (1993-01-01), VandenBrink
patent: 6289996 (2001-09-01), Parish
Photo of Herschel Adams sweep, one page, date unknown.

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