Patent ID: 6675569
Filing Date: 2004-01-13
Classification: A01D

Abstract:
A blade for mounting on a rotary mower comprisingan elongate flat blade defining a plane and having opposed end edges and opposed side edges, said blade adapted for mounting onto a rotary mower for rotation about a center axis extended perpendicular to the plane and separating the blade into opposed elongate end portions extended from said center axis; said blade as rotated about said axis defining a leading side edge portion and a trailing side edge portion for each elongate end portion, each of said leading side edge portions formed into a cutting edge extended from the end edge inwardly a determined distance from said end edge; said trailing edge of each elongate end portion configured to have a ramp portion and a teeth portion, said teeth portion including a plurality of teeth formed by rearwardly extended segments, each segment raised from the plane of the blade and twisted to present a forwardly directed tooth edge whereby grass cut by the leading cutting edge is re-cut by said teeth in a mulching operation, said ramp portion including an upwardly angled and non-twisted segment of said trailing edge providing a ramping surface for deflecting air and cut grass in an upward direction.