Cultivator sweep with pair of rearwardly extending downturned rigid flaps
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United States of America Patent
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-
Jul 25, 1989
Grant Date -
N/A
app pub date -
Feb 24, 1987
filing date -
Feb 24, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The convex upper surface of the generally triangular sweep has oppositely inclined, lateral faces that diverge from the forwardmost point of the sweep and serve to loosen and lift the soil while the outer cutting edges sever subsurface roots of weeds and other above-ground growth. Rigid, rearwardly extending flaps at the rear extremity of the sweep are disposed at such a strategic angle that although they rigidify the trailing section of the sweep and reduce wear which might otherwise occur at outer rear corners of the sweep, they avoid untoward turning and rolling of the loosened soil and severed plant materials so that moisture-retaining trash and plant residue is left intact on the ground surface.
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Cited Art Landscape
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